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WLH2-LD Equivalent & Substitute Parts
Part Overview
The WLH2-LD is a snap action switch manufactured by Omron Automation and Safety, configured as a single-pole double-throw (SPDT) device with a 10A AC / 6A DC current rating at 125V AC / 30V DC. This chassis-mounted switch features a side rotary roller actuator with screw terminal connections and IP67 ingress protection. The product is classified as obsolete, making identification of compatible substitute components essential for system maintenance and component sourcing.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | WLH2-LD |
| Manufacturer | Omron Automation and Safety |
| Circuit Configuration | SPDT (DB/DM) |
| Switch Function | On-Momentary |
| 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 |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution eligibility for the WLH2-LD is determined by strict equivalence across the following critical parameters:
- Circuit configuration: SPDT (DB/DM)
- Switch function: On-Momentary operation
- Current ratings: 10A AC minimum, 6A DC minimum
- Voltage ratings: 125V AC minimum, 30V DC minimum
- Actuator type: Side rotary roller mechanism
- Mounting interface: Chassis mount with screw terminals
- Environmental sealing: IP67 classification
- Operating temperature range: -10°C to 80°C minimum
The WLCA2-LD-N meets all substitution criteria, maintaining identical electrical specifications, mechanical interface, and environmental protection ratings while offering improved mechanical durability and active product status.
Parameter Comparison
| Parameter | WLH2-LD | WLCA2-LD-N | Compatibility |
|---|---|---|---|
| Circuit Configuration | SPDT (DB/DM) | SPDT (DB/DM) | Identical |
| Switch Function | On-Momentary | On-Momentary | Identical |
| Current Rating (AC) | 10A | 10A | Identical |
| Current Rating (DC) | 6A | 6A | Identical |
| Voltage Rating (AC) | 125V | 125V | Identical |
| Voltage Rating (DC) | 30V | 30V | Identical |
| Actuator Type | Side Rotary, Roller | Side Rotary, Roller | Identical |
| Mounting Type | Chassis Mount | Chassis Mount | Identical |
| Termination Style | Screw Terminal | Screw Terminal | Identical |
| Ingress Protection | IP67 | IP67 | Identical |
| Operating Temperature | -10°C to 80°C | -10°C to 80°C | Identical |
| Electrical Life | 750,000 Cycles | 750,000 Cycles | Identical |
| Mechanical Life | 10,000,000 Cycles | 15,000,000 Cycles | Substitute exceeds specification |
| Product Status | Obsolete | Active | Substitute is current production |
| RoHS Status | Not specified | RoHS Compliant | Substitute meets environmental compliance |
Engineering Selection Recommendations
The WLCA2-LD-N is the direct functional equivalent for WLH2-LD applications. Both components share identical electrical ratings, mechanical interfaces, and environmental protection specifications. The WLCA2-LD-N is classified as active product status, ensuring ongoing availability and supply chain continuity. The substitute component carries RoHS compliance certification and REACH unaffected status, meeting current regulatory requirements. Mechanical life specification of the WLCA2-LD-N (15,000,000 cycles) exceeds the original component (10,000,000 cycles), providing enhanced durability within the same form factor and mounting interface.
Frequently Asked Questions (FAQ)
Q: Can WLCA2-LD-N directly replace WLH2-LD in existing applications?
A: Yes. Both components maintain identical SPDT circuit configuration, 10A AC / 6A DC current ratings, 125V AC / 30V DC voltage ratings, side rotary roller actuator, chassis mount interface, screw terminal connections, and IP67 ingress protection. Electrical and mechanical compatibility is complete.
Q: What is the difference in operating force between these components?
A: WLH2-LD specifies 1000gf operating force with 100gf release force. WLCA2-LD-N specifies 1360gf operating force with 120gf release force. These differences reflect design improvements in the active product line but do not affect functional substitution for standard applications.
Q: Does the WLCA2-LD-N meet current compliance standards?
A: Yes. WLCA2-LD-N carries RoHS compliance certification and REACH unaffected status. WLH2-LD compliance status is not specified in available documentation.
Q: Are there packaging differences between these components?
A: WLH2-LD is supplied in standard packaging. WLCA2-LD-N is supplied in bulk packaging. Both use identical screw terminal connections and chassis mount interfaces.
Q: What is the mechanical life advantage of the substitute component?
A: WLCA2-LD-N is rated for 15,000,000 mechanical cycles compared to 10,000,000 cycles for WLH2-LD. Both maintain 750,000 electrical life cycles. The extended mechanical life reflects design improvements in the current production component.
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