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Home > Products > Switches > Limit Switches > LSYJC3K-7A
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LSYJC3K-7A

Manufacturer Part Number:
LSYJC3K-7A
Manufacturer / Brand
Honeywell Sensing and Productivity Solutions
Part of Description:
SWITCH SNAP ACTION SPDT 10A 120V
Datasheets:
Lead Free Status / RoHS Status:
RoHS Compliant
Stock Condition:
New original, 47407 pcs Stock Available.
ECAD Model:
Ship From:
Hong Kong
Shipment Way:
DHL/Fedex/TNT/UPS

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Part Number LSYJC3K-7A
Manufacturer / Brand Honeywell Sensing and Productivity Solutions
Stock Quantity 47407 pcs Stock
Category Switches > Limit Switches
Description SWITCH SNAP ACTION SPDT 10A 120V
Lead Free Status / RoHS Status: RoHS Compliant
Voltage Rating - DC 115 V
Voltage Rating - AC 120 V
Termination Style Screw Terminal
Switch Function On-Mom
Series HDLS
Release Force -
Pretravel 1.000" (25.4mm)
Package Bulk
Overtravel -
Operating Temperature -12°C ~ 121°C
Operating Position -
Operating Force 283gf
Mounting Type Chassis Mount
Mechanical Life -
Ingress Protection -
Features Wobble, Plastic
Electrical Life -
Differential Travel -
Current Rating (Amps) 10A (AC), 800mA (DC)
Circuit SPDT (DB/DM)
Actuator Type Spring, Rod

Packaging & ESD

Industry-standard static shielding packaging is used for electronic components.Anti-static, light-transparent materials allow easy identification of ICs and PCB assemblies.
The packaging structure provides electrostatic protection based on Faraday cage principles.This helps protect sensitive components from static discharge during handling and transportation.


All products are packed in ESD-safe anti-static packaging. Outer packaging labels include part number, brand, and quantity for clear identification. Goods are inspected prior to shipment to ensure proper condition and authenticity.

ESD protection is maintained throughout packing, handling, and global transportation. Secure packaging provides reliable sealing and resistance during transit. Additional cushioning materials are applied when required to protect sensitive components.

QC(Part Testing by IC Components)Quality Warranty

We can offer worldwide express delivery service, such as DHLor FedEx or TNT or UPS or other forwarder for shipment.

Global Shipment by DHL/FedEx/TNT/UPS

Shipping Fees reference DHL/FedEx
1). You can offer your express delivery account for shipment, ifyou haven’t any express account for shipment, we can offer our account inadvance.
2). Use our account for shipment, Shipment charges(Reference DHL/FedEx, Different Countries has different price.)
Shipment charges： (Reference DHL and FedEX)
Weight(KG): 0.00kg-1.00kg Price(USD$) : USD$60.00
Weight(KG): 1.00kg-2.00kg Price(USD$) : USD$80.00
* The price of cost is reference with DHL/FedEx. The detail charges, please contact us. Different country the express charges are different.



We accept the payment terms: Telegraphic Transfer(T/T), Credit Card, PayPal and Western Union.

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PayPal Bank Information:
Company Name : IC COMPONENTS LTD
Paypal ID: Info@IC-Components.com

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Company Name : IC COMPONENTS LTD Beneficiary Account Number : 549-100669-701
Beneficiary Bank name : Bank of Communications (Hong Kong) Ltd Beneficiary Bank Code : 382 (for local payment)
Beneficiary Bank SWIFT : COMMHKHK
Beneficiary Bank Address : Tsuen Wan Market Street Branch 53 Market Street, Tsuen Wan N.T., Hong Kong

Any inquires or questions, please kindly contact us Email: Info@IC-Components.com


Frequently Asked Questions

Can the Honeywell LSYJC3K-7A be used to switch an inductive load such as a solenoid, relay coil, or small motor?
The Honeywell LSYJC3K-7A can handle higher AC loads within its 10A/120V AC rating, but inductive loads create arcing and contact wear that are often more limiting than the nameplate current. For DC inductive loads, the 800mA/115V DC rating should be treated conservatively, and a flyback diode or snubber should be added across the coil. For motors or higher-energy loads, it is usually better to let the LSYJC3K-7A drive an intermediate relay or contactor instead of switching the load directly.
Is the Honeywell LSYJC3K-7A suitable for PLC inputs or low-current control circuits?
The Honeywell LSYJC3K-7A is commonly usable as a dry-contact input for PLCs and controllers, but very low-current signaling can be more sensitive to contact oxidation and bounce than higher-energy switching. If the PLC input current is only a few milliamps or less, confirm that the input provides enough wetting current for reliable closure detection. For ultra-low-level signals, a switch specifically intended for low-level contact duty may be a better fit than the LSYJC3K-7A.
How should I wire the Honeywell LSYJC3K-7A SPDT contacts for fail-safe or alarm logic?
On the Honeywell LSYJC3K-7A, the SPDT arrangement lets you choose either the normally closed or normally open path depending on whether you want an active-high or fail-safe active-low signal. In many interlock designs, the normally closed contact is preferred so a broken wire looks like a fault instead of a valid state. Since the part is an On-Mom device, the output only changes while the actuator is mechanically engaged, so the control logic should expect a momentary transition rather than a maintained position.
What mounting and mechanical alignment issues should I check before installing the Honeywell LSYJC3K-7A in a chassis?
The Honeywell LSYJC3K-7A uses a spring rod actuator, so the mechanism should contact the rod squarely and avoid side loading. Because the operating point depends on the mechanical stackup, the enclosure, brackets, and moving part should be aligned so the switch is fully actuated without being used as a hard stop. In production, it is common to verify worst-case tolerances, vibration shift, and actuator wear so the LSYJC3K-7A still trips consistently after installation.
Can the Honeywell LSYJC3K-7A replace Omron D4A-3315N, D4A-3E15N, or Honeywell LSJ3K-7A?
The Honeywell LSYJC3K-7A is in the same general industrial limit-switch style as the listed substitutes, but a true drop-in replacement depends on the mounting pattern, actuator geometry, terminal layout, and operating force in the target machine. Even when the electrical rating looks close, a different rod length or trip point can change the machine’s timing or clearances. For a migration from D4A-3315N, D4A-3E15N, or LSJ3K-7A to the LSYJC3K-7A, compare the mechanical drawing first and then validate the installed trip position on the actual equipment.
Is the Honeywell LSYJC3K-7A a good choice for outdoor, dusty, or washdown equipment?
The Honeywell LSYJC3K-7A does not list an ingress-protection rating in the provided data, so it is typically best used inside a protected enclosure rather than as an exposed field device. For dusty or wet environments, the screw terminals, actuator opening, and chassis interface should be shielded from contamination and moisture. If the application sees vibration or washdown, additional sealing, strain relief, and periodic inspection are usually needed to keep the LSYJC3K-7A functioning consistently.
What are the practical limits if I use the Honeywell LSYJC3K-7A at 115 VDC instead of AC?
The Honeywell LSYJC3K-7A is rated much lower on DC than on AC, so switching at 115 VDC should be treated as a control-level use case rather than a direct power-switching application. DC arcs do not self-extinguish as easily as AC arcs, so inductive or capacitive DC loads can shorten contact life quickly even when the current is below the stated limit. If the load is DC and not purely resistive, a contactor, solid-state device, or additional suppression network is usually the safer architecture.
Can the Honeywell LSYJC3K-7A be used as a safety interlock or end-of-travel switch?
The Honeywell LSYJC3K-7A can provide position feedback in interlock-style applications, but the provided information does not indicate safety certification or positive-opening construction. In a safety chain, that means it is better treated as a signaling device unless the full machine safety design has been validated separately. For machine protection, many designers use the LSYJC3K-7A together with redundant channels, a safety relay or safety controller, and system-level diagnostics.
What should I watch for when replacing a panel-mounted switch with the Honeywell LSYJC3K-7A in the field?
With the Honeywell LSYJC3K-7A, the main field-service checks are conductor compatibility, screw-terminal torque, and whether the existing wiring harness has enough slack for the chassis-mounted body. Ferrules or well-prepared stranded conductors usually help maintain stable termination over thermal cycling. After replacement, it is worth cycling the mechanism several times to confirm that the rod actuator is hitting the same point and that the switch is not being forced sideways by the moving part.
Is the Honeywell LSYJC3K-7A appropriate for hot industrial cabinets or long-life equipment?
The Honeywell LSYJC3K-7A is specified for -12°C to 121°C, so the surrounding enclosure, nearby heat sources, and self-heating from the controlled circuit should still be checked at the installed location. In a hot cabinet, contact pressure, insulation aging, and contamination can change over time, so it is useful to verify the real case temperature rather than relying only on ambient air. For long-life machinery, a validation test that includes temperature cycling, vibration, and repeated actuation is a practical way to confirm the LSYJC3K-7A will stay within the expected operating window.

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LSYJC3K-7A

Honeywell Sensing and Productivity Solutions

SWITCH SNAP ACTION SPDT 10A 120V

In Stock: 47407

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