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WLCA2-8 Equivalent & Substitute Parts
Part Overview
The WLCA2-8 is a snap action SPDT switch manufactured by Omron Automation and Safety, designed for chassis mount applications requiring 10A AC / 6A DC switching capacity at 125V AC / 30V DC. This component features a side rotary roller actuator with screw terminal connections and IP67 ingress protection rating.
The WLCA2-8 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this switch configuration.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Circuit Configuration | SPDT (DB/DM) |
| Switch Function | On-Mom |
| Current Rating (AC) | 10A |
| Current Rating (DC) | 6A |
| Voltage Rating (AC) | 125V |
| Voltage Rating (DC) | 30V |
| Actuator Type | Side Rotary, Roller |
| Mounting Type | Chassis Mount |
| Termination Style | Screw Terminal |
| Ingress Protection | IP67 - Dust Tight, Waterproof |
| Operating Temperature Range | -10°C to 80°C |
| Electrical Life | 750,000 Cycles |
| Mechanical Life | 15,000,000 Cycles |
Substitute Part Grouping Explanation
Substitution eligibility for the WLCA2-8 is determined by strict equivalence across the following critical parameters:
- Circuit configuration (SPDT DB/DM topology)
- Switch function (On-Mom operation)
- Current and voltage ratings (10A AC / 6A DC at 125V AC / 30V DC minimum)
- Actuator type (Side Rotary, Roller)
- Mounting interface (Chassis Mount)
- Termination method (Screw Terminal)
- Environmental protection (IP67 rating)
- Operating temperature range (-10°C to 80°C)
- Electrical and mechanical life specifications (750,000 and 15,000,000 cycles respectively)
The WLCA2-8-N meets all these criteria and qualifies as a direct substitute. Both parts share identical electrical performance characteristics, mechanical interface requirements, and environmental specifications. Differences in release force, overtravel distance, and product status do not affect functional substitutability within the defined electrical and mechanical parameter envelope.
Parameter Comparison
| Parameter | WLCA2-8 | WLCA2-8-N |
|---|---|---|
| Manufacturer | Omron Automation and Safety | Omron Automation and Safety |
| Circuit Configuration | SPDT (DB/DM) | SPDT (DB/DM) |
| Switch Function | On-Mom | On-Mom |
| Current Rating (AC) | 10A | 10A |
| Current Rating (DC) | 6A | 6A |
| Voltage Rating (AC) | 125V | 125V |
| Voltage Rating (DC) | 30V | 30V |
| Actuator Type | Side Rotary, Roller | Side Rotary, Roller |
| Mounting Type | Chassis Mount | Chassis Mount |
| Termination Style | Screw Terminal | Screw Terminal |
| Ingress Protection | IP67 - Dust Tight, Waterproof | IP67 - Dust Tight, Waterproof |
| Operating Temperature | -10°C to 80°C | -10°C to 80°C |
| Electrical Life | 750,000 Cycles | 750,000 Cycles |
| Mechanical Life | 15,000,000 Cycles | 15,000,000 Cycles |
| Product Status | Obsolete | Active |
| RoHS Status | Not specified | RoHS Compliant |
| REACH Status | Vendor Undefined | REACH Unaffected |
Engineering Selection Recommendations
The WLCA2-8-N is the direct substitute for the obsolete WLCA2-8. Both components are electrically and mechanically equivalent across all critical performance parameters. The WLCA2-8-N offers the additional advantage of active product status, ensuring continued availability and manufacturer support.
The WLCA2-8-N carries RoHS Compliant certification and REACH Unaffected status, providing enhanced regulatory compliance documentation compared to the original part. These certifications support long-term supply chain reliability and regulatory alignment for new designs or production continuations.
Selection between these parts should be based on availability and regulatory requirements. The WLCA2-8-N is the preferred choice for new applications and ongoing production due to its active status and compliance certifications.
Frequently Asked Questions (FAQ)
Q: Can the WLCA2-8-N directly replace the WLCA2-8 in existing designs?
A: Yes. Both parts share identical electrical ratings (10A AC / 6A DC, 125V AC / 30V DC), circuit configuration (SPDT), actuator type (Side Rotary, Roller), mounting interface (Chassis Mount), and termination method (Screw Terminal). Mechanical and electrical life specifications are equivalent. Direct substitution is supported without design modification.
Q: What is the difference between the WLCA2-8 and WLCA2-8-N?
A: The parts are functionally equivalent. The WLCA2-8-N differs in release force (72gf vs. 137gf) and overtravel distance (70° vs. 30°). The WLCA2-8-N is active product status with RoHS Compliant and REACH Unaffected certifications, while the WLCA2-8 is obsolete with undefined compliance status.
Q: Why is the WLCA2-8 listed as obsolete?
A: The WLCA2-8 has been discontinued by the manufacturer. The WLCA2-8-N represents the current production equivalent and is recommended for all new applications and ongoing supply requirements.
Q: Are there packaging differences between these parts?
A: The WLCA2-8 is packaged as individual units (packaging listed as "-"). The WLCA2-8-N is supplied in bulk packaging. Both configurations support the same electrical and mechanical specifications.
Q: What certifications apply to the WLCA2-8-N?
A: The WLCA2-8-N is RoHS Compliant and REACH Unaffected. Both parts carry ECCN EAR99 classification and HTSUS code 8536.50.9055.
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