WLH2-2 Equivalent & Substitute Parts

Part Overview

The WLH2-2 is a snap action switch manufactured by Omron Automation and Safety, configured as a single-pole double-throw (SPDT) device with chassis mount installation. This switch is rated for 10A at 125V AC and 6A at 30V DC, featuring a side rotary roller actuator with screw terminal connections and IP67 ingress protection. The WLH2-2 is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations.

Substiute Parts

WLH2-2

Omron Automation and SafetyIn Stock: 1031WLH2-2 Datasheet

Current PartRFQ

WLCA2-N

Omron Automation and SafetyIn Stock: 1088WLCA2-N Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The WLCA2-N qualifies as a functional substitute for the WLH2-2 based on the following critical parameters:

• Circuit Configuration: Both devices implement SPDT (DB/DM) switching topology
• Switch Function: Both operate in On-Mom (momentary) mode
• Current and Voltage Ratings: Both are rated for 10A at 125V AC and 6A at 30V DC
• Actuator Type: Both feature side rotary roller actuators
• Mounting Type: Both use chassis mount installation
• Termination Style: Both employ screw terminal connections
• Ingress Protection: Both provide IP67 protection (dust tight, waterproof)
• Operating Temperature Range: Both operate across -10°C to 80°C

The WLCA2-N belongs to the WL-N series and maintains active product status, providing continuity for applications currently using the obsolete WLH2-2.

Parameter Comparison

Engineering Selection Recommendations

The WLCA2-N is the designated substitute for the obsolete WLH2-2. Both devices maintain identical electrical and mechanical specifications across all critical parameters: circuit configuration, current and voltage ratings, actuator type, mounting configuration, and environmental protection rating.

The WLCA2-N offers the advantage of active product status, ensuring ongoing availability and supply chain continuity. Additionally, the WLCA2-N carries ROHS3 compliance and REACH unaffected status, providing regulatory alignment for applications subject to environmental and hazardous substance restrictions.

The WLCA2-N exhibits enhanced mechanical durability with 15,000,000 mechanical life cycles compared to the WLH2-2's 10,000,000 cycles, while maintaining identical electrical life specifications of 750,000 cycles.

Frequently Asked Questions (FAQ)

Q: Can the WLCA2-N directly replace the WLH2-2 in existing applications?

A: Yes. The WLCA2-N maintains identical electrical ratings (10A at 125V AC, 6A at 30V DC), circuit configuration (SPDT), switch function (On-Mom), actuator type (side rotary roller), mounting type (chassis mount), termination style (screw terminal), and ingress protection (IP67). These parameters define functional equivalence for snap action switch applications.

Q: What are the differences between WLH2-2 and WLCA2-N?

A: The primary differences are product status and compliance certifications. The WLH2-2 is obsolete with vendor-undefined RoHS and REACH status. The WLCA2-N is active, ROHS3 compliant, and REACH unaffected. The WLCA2-N also provides extended mechanical life (15,000,000 cycles versus 10,000,000 cycles).

Q: Are there packaging differences between these parts?

A: The WLH2-2 is supplied with unspecified packaging, while the WLCA2-N is supplied in bulk packaging. Packaging format does not affect electrical or mechanical performance.

Q: What operating conditions are supported by both switches?

A: Both switches operate across -10°C to 80°C ambient temperature range with IP67 ingress protection, supporting dust-tight and waterproof applications.

Q: Which part should be selected for new designs?

A: The WLCA2-N should be selected for new designs due to active product status, regulatory compliance certifications, and extended mechanical life specifications.