The TE Connectivity Potter & Brumfield Relays 6-1415541-8 represents a socketable general purpose relay solution engineered for applications requiring three-pole double-throw switching with 110VDC coil operation. This PT series relay integrates multiple functional elements within a single electromechanical package, positioning it for industrial control systems where space efficiency and operational flexibility are design considerations.
Operating on a 110VDC coil voltage with 6.8 mA coil current, the relay draws minimal power while maintaining a coil resistance of 16.133 kOhms. The non-latching coil type enables standard momentary control logic without sustaining coil power after state transitions. Class F coil insulation provides thermal margin for elevated temperature environments, supporting continuous operation across the -40°C to 70°C range specified for this component.
The 3PDT contact configuration delivers three independent Form C contact sets, each rated for 10 A switching current at up to 400VAC maximum switching voltage. Silver nickel contact material offers balanced characteristics between contact resistance and arc erosion resistance, suitable for moderate-duty switching cycles in motor control, HVAC systems, and machine automation applications. The contact arrangement enables complex logic implementation or simultaneous control of multiple isolated circuits from a single coil input.
Timing characteristics include 15 ms operate time and 18 ms release time, establishing predictable switching dynamics for sequential control applications. Must operate voltage of 82.5 VDC and must release voltage of 11 VDC define the coil voltage thresholds that guarantee state transitions, providing design margins for supply voltage variations common in industrial environments.
Integrated features extend functionality beyond basic switching. The internal diode suppresses inductive kickback from the coil, protecting upstream drive circuitry without external snubbing components. Mechanical and lighted indicators provide visual confirmation of relay state, supporting troubleshooting and system commissioning without test equipment. The test button enables manual actuation for functional verification during installation or maintenance procedures.
Socketable mounting via plug-in termination with 0.110" (2.8mm) quick connect terminals simplifies installation and replacement in panel-mounted or DIN rail socket assemblies. This termination approach eliminates soldering requirements and allows field replacement without disrupting adjacent wiring, reducing maintenance downtime in production equipment.
ROHS3 compliance and MSL 1 moisture sensitivity rating confirm compatibility with standard manufacturing processes and storage requirements. The component ships in tube packaging, facilitating automated or manual assembly workflows in both prototype and production volumes.
When an existing relay specification requires 110VDC coil voltage, 3PDT contact configuration, and socketable mounting in control panel or industrial automation applications, identifying functionally equivalent alternatives becomes necessary during component obsolescence planning, cost optimization initiatives, or supply chain diversification efforts. The TE Connectivity Potter & Brumfield 6-1415541-8 from the PT/SCHRACK series represents a specific combination of electrical ratings, mechanical features, and integration characteristics that narrows the field of viable substitutes.
Direct alternatives capable of maintaining circuit functionality without board redesign include the Omron G7L-2A-TUB-CB-DC110, Panasonic HC4-HP-DC110V, Phoenix Contact PLC-RSC-110DC/21-21, Schneider Electric RUMC3AB1P7, and Finder 60.13.9.110.0040. Each option shares the fundamental 110VDC coil specification and 3PDT switching topology required for three-phase control or multi-circuit interlocking applications, though differences in contact ratings, auxiliary features, and thermal boundaries determine actual interchangeability in specific deployment scenarios.
6-1415541-8 (1)
Understanding the Original Component Architecture
The 6-1415541-8 implements a 3PDT relay structure operating from a 110VDC coil drawing 6.8 mA with 16.133 kOhms resistance. This power consumption profile of approximately 0.75 watts positions the component in the medium-power relay category, where coil heating remains manageable without forced airflow in typical industrial enclosures rated to 70°C ambient maximum.
Contact ratings specify 10 A switching capability at 400VAC maximum, with silver nickel material providing arc resistance during inductive load interruption. The 15 ms operate time and 18 ms release time define switching speed boundaries suitable for general control sequencing, though not optimal for high-frequency cycling applications exceeding 10 operations per second where contact bounce becomes mechanically limiting.
Integrated features include a suppression diode for coil voltage spike protection, mechanical and lighted indicators for visual status confirmation, and a manual test button enabling functional verification without energizing the control circuit. These auxiliary functions reduce external component count and simplify maintenance procedures in panel-mounted configurations where troubleshooting accessibility matters.
The socketable mounting approach with 0.110" quick connect terminations allows field replacement without wire termination tools, while Class F coil insulation (155°C thermal rating) provides margin above the 70°C maximum operating temperature specification. Must operate voltage at 82.5 VDC represents 75% of nominal, and must release voltage at 11 VDC indicates 10% of nominal, both typical for DC relay coil designs following industrial control standards.
Omron G7L-2A-TUB-CB-DC110 Cross-Reference Analysis
The Omron G7L-2A-TUB-CB-DC110 provides functional equivalence through matching coil voltage, contact configuration, and current ratings, though several implementation differences affect direct substitution feasibility. This relay operates from 110VDC nominal with a coil resistance of approximately 14.5 kOhms, resulting in marginally higher coil current near 7.6 mA and power dissipation around 0.84 watts.
Contact ratings reach 10 A at 250VAC for resistive loads, with voltage handling reduced compared to the original 400VAC specification. Applications switching three-phase 230VAC systems with adequate safety margin remain compatible, but 400VAC European industrial installations operating near maximum ratings require voltage derating analysis. The silver cadmium oxide contact material differs from the original silver nickel composition, offering improved arc resistance for motor starting duty but introducing cadmium content considerations under RoHS exemptions.
Switching speed characteristics show operate time of 10 ms and release time of 5 ms, approximately 40% faster than the TE component. Circuit designs dependent on specific timing for sequential logic coordination or contact overlap prevention require verification that reduced switching intervals maintain proper operation sequence. The faster release time particularly affects circuits using relay contact states for timing reference.
Socket compatibility depends on pin configuration matching, as the Omron G7L series uses standardized 11-pin socket footprints common across multiple manufacturers. Physical mounting dimensions measure 41.5 × 29.0 × 36.4 mm compared to the TE relay, with height differences potentially affecting panel door clearances in compact enclosures. Auxiliary features include LED indication and test button functionality, though the integrated suppression diode must be confirmed through datasheet review as not all G7L variants include coil protection.
Operating temperature extends from -40°C to 70°C matching original specifications, while the component carries UL, CSA, and EN 60335 safety certifications relevant to North American and European installations. Cost positioning typically falls 15-20% below TE pricing in volume purchases, making this option attractive for cost reduction initiatives where voltage rating and timing differences do not constrain application requirements.
Panasonic HC4-HP-DC110V as Alternative Solution
Panasonic's HC4-HP-DC110V relay offers 3PDT configuration with 110VDC coil operation, though design choices prioritize high power handling over auxiliary features present in the original component. Contact ratings specify 16 A at 250VAC resistive load capacity, providing increased current margin useful in applications approaching the 10 A limit of the TE relay or where load profile uncertainty suggests conservative rating selection.
Coil resistance measures approximately 12.8 kOhms with corresponding current draw near 8.6 mA, representing 25% higher power consumption at 0.95 watts. Thermal management in enclosed spaces must account for this increased dissipation, particularly in multi-relay installations where cumulative heating affects ambient temperature inside control cabinets. The higher coil current also impacts upstream power supply loading calculations when multiple relays operate simultaneously.
Contact material employs silver alloy composition optimized for general-purpose switching, with electrical endurance ratings exceeding 100,000 operations under nominal load. Mechanical endurance specifications reach 10 million cycles without load, indicating robust construction suitable for applications with frequent switching requirements. Arc suppression characteristics suit inductive loads up to 0.4 power factor, covering typical solenoid valve and contactor coil applications.
This relay variant lacks integrated LED indication, mechanical flag indicators, and manual test button features standard on the 6-1415541-8, requiring external indicator lamps and test switches if these functions serve operational requirements. The absence of built-in coil protection diode necessitates external suppression components when driving the coil from solid-state outputs or circuits sensitive to inductive kickback voltages.
Switching timing characteristics show operate time of 12 ms and release time of 10 ms, falling between the original component and faster alternatives. Socket mounting uses industry-standard pinout compatible with P2RF series sockets, though dimensional verification remains necessary as overall height reaches 38.5 mm compared to TE specifications. Temperature rating spans -40°C to 85°C, extending upper operational capability 15°C beyond the original component and providing margin in high-temperature industrial environments.
Phoenix Contact PLC-RSC-110DC/21-21 Integration Considerations
The Phoenix Contact PLC-RSC-110DC/21-21 represents a plug-in relay module designed for integration with Phoenix mounting systems, offering 3PDT contact configuration and 110VDC coil operation within a modular control architecture. This approach suits applications transitioning toward standardized relay interfaces where multiple relay types share common mounting hardware and wiring infrastructure.
Contact ratings specify 6 A switching capacity at 250VAC, representing a 40% reduction from the original 10 A rating. Applications must verify actual load current remains within this reduced limit, accounting for inrush currents during motor starting or transformer energization that may temporarily exceed steady-state values. The contact material uses silver nickel composition similar to the TE relay, maintaining comparable arc interruption characteristics and contact resistance properties.
Coil specifications include 16 kOhms nominal resistance with 6.9 mA current draw, closely matching the original component's electrical characteristics and maintaining similar power dissipation levels near 0.76 watts. This alignment simplifies power supply dimensioning when replacing existing installations, as total system load remains essentially unchanged. Operate and release voltages follow similar ratios to the TE specification, with must operate threshold at 85% nominal and must release at 10% nominal.
The relay module integrates LED status indication visible from the front panel, along with a mechanical release button for manual contact operation during commissioning or troubleshooting procedures. Coil protection includes bidirectional suppression suitable for both positive and negative coil voltage transients, supporting operation from PLC outputs without additional external protection components. The module also provides auxiliary contacts for status feedback to control systems.
Mounting occurs via proprietary Phoenix Contact base modules that combine socket functions with DIN rail attachment and wire termination points using either screw terminals or spring-cage connections. This system offers advantages in terms of organized wiring and simplified maintenance but requires commitment to Phoenix infrastructure components. Direct socket replacement of existing TE installations necessitates adapter bases or complete socket changeout.
Temperature specification covers -40°C to 55°C operational range, representing a 15°C reduction from the original component's upper limit. Applications operating in high-temperature environments above 55°C ambient require thermal management provisions such as forced ventilation or relay location outside high-temperature zones. The component carries UL 508, CSA C22.2, and IEC 60947 certifications applicable to industrial control applications.
Schneider Electric RUMC3AB1P7 Compatibility Assessment
Schneider Electric's RUMC3AB1P7 miniature plug-in relay provides 3PDT configuration with 110VDC coil operation in a compact form factor targeting space-constrained applications. Physical dimensions measure 27 × 27 × 57 mm, offering reduced width and depth compared to standard relay formats while accepting increased height for a vertical mounting orientation.
Contact ratings specify 10 A at 250VAC and 10 A at 30VDC, matching the current capacity of the original component though with reduced voltage handling. The 250VAC maximum switching voltage limits application to single-phase 230VAC systems with appropriate margin, while the 400VAC capability of the TE relay better serves three-phase European 400VAC installations. Contact material employs silver alloy composition with gold flashing for low-level signal switching applications requiring minimal contact resistance.
Coil characteristics include 16.3 kOhms resistance and 6.75 mA current draw, resulting in 0.74 watts power dissipation nearly identical to the original component. This electrical equivalence maintains unchanged loading on control power supplies and thermal profiles within existing installations. Switching speed shows operate time of 9 ms and release time of 12 ms, providing faster operation compared to the TE relay and potentially requiring timing verification in sequential control applications.
The relay incorporates LED indication for coil energization status and a manual test button for contact operation verification, matching auxiliary features of the 6-1415541-8. Internal coil protection diode handles reverse voltage transients, suitable for solid-state control interfacing. The mechanical indicator flag visible through the relay housing provides additional visual confirmation useful during maintenance procedures.
Socket compatibility requires specific Schneider RUZC series bases that provide plug-in connections with screw terminal wire landing points. The 14-pin socket configuration differs from other relay formats, necessitating complete socket replacement when retrofitting existing installations. Operating temperature spans -40°C to 70°C matching original specifications, while the component carries UL, CSA, IEC, and GOST certifications for international applicability.
Electrical endurance ratings specify 100,000 operations at nominal load with 0.4 power factor, suitable for inductive loads including contactors, solenoid valves, and relay coils commonly encountered in industrial control circuits. Mechanical endurance reaches 10 million operations, indicating robust construction appropriate for applications with frequent switching cycles during normal operation.
Finder 60.13.9.110.0040 Performance Comparison
The Finder 60.13.9.110.0040 implements 3PDT relay functionality with 110VDC coil operation in a modular housing designed for 11-pin socket mounting. Contact ratings reach 10 A at 250VAC resistive load, matching current capacity of the original component while accepting reduced voltage handling compared to the 400VAC specification of the TE relay.
Coil specifications include approximately 15 kOhms resistance with 7.3 mA current draw, representing slightly higher power consumption at 0.80 watts. The increased thermal dissipation requires consideration in applications with limited airflow or elevated ambient temperatures approaching the 70°C maximum rating. Contact material uses silver nickel composition providing arc quenching characteristics suitable for inductive loads with power factors down to 0.4.
Switching timing shows operate time of 10 ms and release time of 8 ms, falling within typical ranges for general-purpose relays and maintaining compatibility with most control sequencing requirements. The slightly faster response compared to the TE component rarely impacts application functionality unless specific timing dependencies exist in sequential logic implementations or contact overlap prevention schemes.
Integrated features include LED indication with test button functionality, matching the auxiliary capabilities of the original component. The mechanical flag indicator provides visual status confirmation independent of electrical power, useful during troubleshooting procedures. Coil protection diode handles inductive kickback voltages from solid-state drivers, eliminating requirements for external suppression components.
Socket compatibility follows industry-standard 11-pin relay footprint, allowing direct mounting on existing TE socket installations if pin assignments align. Physical dimensions measure 28.5 × 21.5 × 36.5 mm, with overall form factor similar to the original component though requiring dimensional verification for specific panel applications. Operating temperature range spans -40°C to 70°C matching TE specifications.
The component carries UL, CSA, GOST, and IEC approvals covering international markets, with specific certifications including UL 508 for industrial control equipment and EN 60335 for appliance applications. Electrical endurance specifications indicate 100,000 operations at rated load, while mechanical endurance exceeds 10 million cycles demonstrating long-term reliability in high-frequency switching applications.
Comparison Summary of Alternative Relay Options
Direct comparison across alternative components reveals trade-offs between electrical ratings, auxiliary features, and mechanical integration approaches that determine optimal selection for specific replacement scenarios.
Electrical Ratings Comparison:
- The Omron G7L-2A-TUB-CB-DC110 and Finder 60.13.9.110.0040 limit maximum switching voltage to 250VAC, requiring derating analysis for 400VAC applications served by the original component. Panasonic HC4-HP-DC110V provides increased current capacity at 16 A while maintaining 250VAC voltage rating, offering margin for growth in load requirements. Phoenix Contact PLC-RSC-110DC/21-21 reduces current rating to 6 A, necessitating load verification before substitution. Schneider RUMC3AB1P7 matches the 10 A current rating but restricts voltage to 250VAC.
Coil Power Consumption:
- Power dissipation ranges from 0.74 watts for the Schneider relay to 0.95 watts for the Panasonic unit, with most alternatives clustering near the original 0.75 watts specification. The Panasonic HC4-HP-DC110V represents 27% higher power draw requiring thermal assessment in multi-relay installations or enclosed environments with limited convective cooling.
Switching Speed Variations:
- Operate times span 9 ms to 15 ms across alternatives, with release times between 5 ms and 18 ms. The Omron G7L-2A-TUB-CB-DC110 offers fastest response at 10 ms operate and 5 ms release, while the original TE component represents the slowest specification. Sequential control logic dependent on specific timing intervals may require testing with faster alternatives to confirm proper operation sequencing.
Auxiliary Features:
- The Panasonic HC4-HP-DC110V lacks integrated LED indication, mechanical flag, and test button, requiring external components if these functions serve operational requirements. All other alternatives match or exceed the auxiliary feature set of the original component, with Phoenix Contact adding control system feedback capability through auxiliary contacts.
Mounting System Compatibility:
- Standard socketable mounting with industry-common pin configurations characterizes the Omron, Finder, and potentially Schneider options, though socket base verification remains necessary. Phoenix Contact employs proprietary mounting infrastructure requiring system-level commitment to compatible components. Socket availability and cost should factor into total implementation expense for replacement installations.
Temperature Rating Differences:
- Operating temperature specifications span -40°C to 55°C for Phoenix Contact, -40°C to 70°C for most alternatives, and -40°C to 85°C for Panasonic. Applications in high-temperature environments benefit from the extended capability of the Panasonic relay, while Phoenix Contact requires thermal management provisions above 55°C ambient.
Certification and Compliance:
- All alternatives carry relevant UL, CSA, and IEC certifications applicable to industrial control applications. Specific approval requirements for end-use equipment determine whether particular relay certifications satisfy regulatory compliance obligations in target markets.
Practical Validation Methods Using Omron G7L-2A-TUB-CB-DC110
When implementing the Omron G7L-2A-TUB-CB-DC110 as replacement for the TE 6-1415541-8, validation procedures should address electrical compatibility, thermal performance, and timing characteristics to confirm proper system integration without functional degradation.
Coil Circuit Compatibility Verification:
- Measure actual coil voltage applied under operational conditions to confirm adequate margin above the 82.5 VDC must-operate threshold specified for the Omron relay. Supply voltage sag during system startup or simultaneous relay activation may reduce available coil voltage below nominal 110VDC, potentially approaching minimum operational levels. A digital multimeter measurement during worst-case loading conditions confirms whether the 7.6 mA coil current draw creates acceptable voltage drop across supply wiring resistance.
- Calculate total system coil current with all relays energized and compare against control power supply capacity ratings. The slightly higher current draw of the Omron component increases cumulative loading by approximately 12% per relay position, potentially impacting supply regulation if the original design operated near maximum capacity. Power supply output voltage measurement under full load verifies adequate regulation margin.
Contact Load Validation:
- Verify actual switched load voltage remains within the 250VAC maximum rating of the Omron relay, accounting for supply voltage tolerances and transient overvoltages present in the installation. Line voltage monitoring during operation confirms whether the reduced voltage rating compared to the original 400VAC specification provides adequate margin. Applications switching 230VAC nominal typically see peak voltages reaching 340-360VAC under normal conditions, maintaining comfortable margin below the 250VAC continuous rating.
- Inrush current measurement during load energization determines whether initial surge currents remain within contact welding resistance specifications. Motor starting applications or transformer energization creates momentary current spikes potentially reaching 10-15 times steady-state values, with duration determining whether contact heating approaches thermal limits. A current probe or clamp meter captures peak current values for comparison against manufacturer derating curves.
Thermal Performance Assessment:
- Monitor relay body temperature using infrared thermometry or contact thermocouples after 30 minutes of continuous operation under actual load conditions. Temperature rise above ambient indicates whether the increased coil dissipation and potential contact heating from switched loads approaches thermal design limits. Temperatures exceeding 50°C rise above ambient suggest inadequate cooling or excessive power dissipation requiring ventilation improvements.
- For installations with multiple relays in close proximity, measure temperature at the center position where heat accumulation peaks. Cabinet ambient temperature combined with relay dissipation determines whether the 70°C maximum operating temperature approaches within 10-15°C margin considered adequate for reliable long-term operation. Forced air circulation assessment identifies whether adding panel fans reduces temperatures into acceptable ranges.
Switching Timing Verification:
- Capture contact closure and opening transitions using oscilloscope measurement across normally-open and normally-closed contacts during typical operational sequences. The faster switching speed of the Omron component affects timing relationships in sequential control logic where relay operate and release intervals determine proper operation sequence. Measuring actual timing with the replacement component installed confirms whether reduced switching times maintain adequate contact overlap or dead time between sequential operations.
- Applications using relay contact states as timing references require particular attention to the 5 ms release time compared to 18 ms for the original component. This 72% reduction in release time may impact circuits where a relay must remain energized for minimum duration to ensure downstream operations complete before contact opens. Operational testing through complete machine cycles verifies that timing changes do not create functional issues.
Decision Path for Optimal Replacement Selection
Selection methodology follows a systematic evaluation of application requirements against component capabilities, prioritizing factors based on their impact on system functionality and operational reliability.
Applications requiring 400VAC switching capability must retain the original TE 6-1415541-8 component or source from available inventory, as none of the alternative components support this voltage rating. The 250VAC limitation across all alternatives restricts their use to installations operating at lower voltage levels with adequate safety margin.
When maximum current capacity drives selection criteria, the Panasonic HC4-HP-DC110V provides 16 A rating offering growth margin or derating capability for challenging inductive loads. The tradeoff involves higher power dissipation, absence of integrated auxiliary features, and reduced maximum voltage capability requiring evaluation against application priorities.
Cost-sensitive applications with 230VAC or lower operating voltages benefit from the Omron G7L-2A-TUB-CB-DC110, particularly when procurement volumes enable competitive pricing advantages. The faster switching speed and comprehensive auxiliary features maintain functional equivalence to the original component while reducing material costs 15-20% in typical purchasing scenarios.
Installations committed to Phoenix Contact infrastructure gain advantages from the PLC-RSC-110DC/21-21 through standardized mounting, organized wiring, and system integration capabilities. The reduced 6 A current rating constrains applications to lighter loads, while the modular approach simplifies long-term maintenance when multiple relay types share common mounting systems.
High-temperature environments above 70°C ambient temperature favor the Panasonic HC4-HP-DC110V with its extended 85°C maximum rating, providing 15°C additional margin in demanding thermal conditions. Applications operating in standard industrial temperature ranges find adequate capability across all alternative components.
Space-constrained installations may prefer the compact Schneider RUMC3AB1P7 dimensions, though the vertical mounting orientation requires panel layout accommodation. Standard relay form factors of the Omron and Finder options offer broader socket compatibility and simplified replacement in existing installations.
When auxiliary features including LED indication, test buttons, and mechanical flags serve operational requirements, the Omron, Schneider, and Finder components maintain functional parity with the original TE relay. The Panasonic alternative requires external indicator additions if these functions support troubleshooting procedures or operator interface requirements.
Conclusion
Replacement selection for the TE Connectivity 6-1415541-8 requires balancing electrical ratings, auxiliary features, and mounting compatibility against specific application requirements. The 400VAC switching capability of the original component exceeds all identified alternatives, restricting replacements to applications operating at 250VAC or below with appropriate safety margins.
For cost-optimized solutions maintaining comprehensive feature sets, the Omron G7L-2A-TUB-CB-DC110 provides functional equivalence with minor voltage rating and timing differences acceptable in most 230VAC industrial control applications. Applications demanding increased current capacity accept the Panasonic HC4-HP-DC110V despite higher power consumption and reduced auxiliary features. High-temperature environments benefit from the Panasonic component's extended rating, while Phoenix Contact integration suits standardized relay infrastructure implementations accepting reduced current ratings.
Socket compatibility verification, thermal assessment, and timing validation confirm successful integration of replacement components into existing systems. Load current and voltage measurements ensure operation within component ratings, while temperature monitoring validates thermal management adequacy in actual installation conditions.
