WLCA2-TH Snap Action Switch - Equivalent & Substitute Parts

Part Overview

The WLCA2-TH is an Omron Automation and Safety snap action switch featuring SPDT (double-break/double-make) circuitry with a 10A AC / 6A DC current rating at 125V AC / 30V DC. This chassis-mount switch utilizes a side rotary roller actuator with screw terminal connections and IP67 ingress protection. The product is classified as obsolete, making identification of equivalent active alternatives essential for ongoing system maintenance and new design implementations.

Substiute Parts

WLCA2-TH

Omron Automation and SafetyIn Stock: 866WLCA2-TH Datasheet

Current PartRFQ

WLCA2-TH-N

Omron Automation and SafetyIn Stock: 1052WLCA2-TH-N Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the WLCA2-TH is determined by strict equivalence across the following critical parameters:

• Circuit configuration: SPDT (DB/DM) topology
• Current and voltage ratings: 10A AC at 125V AC; 6A DC at 30V DC
• Actuator mechanism: Side rotary roller type
• Mounting interface: Chassis mount with screw terminals
• Environmental sealing: IP67 dust-tight and waterproof rating
• Operating temperature envelope: 5°C to 120°C
• Electrical and mechanical life specifications: 750,000 electrical cycles and 15,000,000 mechanical cycles

The WLCA2-TH-N meets all these criteria and is classified as an active product, making it a direct functional equivalent suitable for replacement applications.

Parameter Comparison

Engineering Selection Recommendations

The WLCA2-TH-N is the appropriate substitute for the obsolete WLCA2-TH. Both parts maintain identical electrical and mechanical specifications across all critical parameters. The WLCA2-TH-N carries active product status and provides ROHS3 compliance and confirmed REACH unaffected status, offering regulatory clarity for new designs and system upgrades. The transition from the obsolete WLCA2-TH to the WLCA2-TH-N requires no circuit redesign or mechanical interface modification.

Frequently Asked Questions (FAQ)

Q: Can WLCA2-TH-N directly replace WLCA2-TH in existing assemblies?

A: Yes. Both parts share identical circuit configuration (SPDT DB/DM), current ratings (10A AC / 6A DC), voltage ratings (125V AC / 30V DC), actuator type (side rotary roller), mounting interface (chassis mount), termination style (screw terminal), and ingress protection (IP67). No circuit or mechanical modifications are required.

Q: What is the difference between WLCA2-TH and WLCA2-TH-N?

A: The primary differences are product status and regulatory compliance. WLCA2-TH is obsolete; WLCA2-TH-N is active. WLCA2-TH-N provides ROHS3 compliance and confirmed REACH unaffected status. Minor variations exist in release force (227gf vs. 120gf) and overtravel (30° vs. 70°), but these do not affect functional equivalence for standard applications.

Q: Are there packaging differences between these parts?

A: WLCA2-TH packaging is listed as unspecified; WLCA2-TH-N is supplied in bulk packaging. Packaging format does not affect electrical or mechanical performance.

Q: Which part should be selected for new designs?

A: WLCA2-TH-N should be selected for new designs. It is an active product with current regulatory compliance certifications.

Q: Do these parts require different PCB footprints or mechanical mounting?

A: No. Both parts use identical chassis mount interfaces with screw terminal connections. PCB layouts and mechanical mounting designs require no modification.