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WR12BS/V Equivalent & Substitute Parts
Part Overview
The WR12BS/V is a rocker switch manufactured by NKK Switches, classified as SPDT (Single Pole Double Throw) with a 15A AC/DC rating at 125V AC and 30V DC. This panel-mount, snap-in switch features a concave ivory actuator with solder lug termination and IP67 ingress protection. The WR12BS/V is currently listed as obsolete, making identification of equivalent and substitute parts essential for ongoing maintenance, repair, and system continuity in applications requiring SPDT rocker switch functionality.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | WR12BS/V |
| Manufacturer | NKK Switches |
| Series | WR |
| Circuit Configuration | SPDT |
| Switch Function | On-On |
| Current Rating | 15A (AC/DC) |
| Voltage Rating - AC | 125V |
| Voltage Rating - DC | 30V |
| Mounting Type | Panel Mount, Snap-In |
| Termination Style | Solder Lug |
| Panel Cutout Dimensions | Rectangular - 34.20mm x 17.20mm |
| Ingress Protection | IP67 - Dust Tight, Waterproof |
| Operating Temperature Range | -25°C ~ 85°C |
| Mechanical Life | 30,000 Cycles |
| Electrical Life | 15,000 Cycles |
| Approval Agencies | EN, UL |
Substitute Part Grouping Explanation
Substitution eligibility for the WR12BS/V is determined by strict equivalence across the following critical parameters:
- Circuit configuration (SPDT)
- Switch function (On-On)
- Current rating (15A AC/DC)
- Voltage ratings (125V AC, 30V DC)
- Mounting type (Panel Mount, Snap-In)
- Panel cutout dimensions (Rectangular - 34.20mm x 17.20mm)
- Termination style (Solder Lug)
- Ingress protection rating (IP67)
- Operating temperature range (-25°C ~ 85°C)
- Regulatory approvals (EN, UL)
The WR12BS (without the /V suffix designation) from NKK Switches meets all these criteria and qualifies as a direct substitute. The primary distinction between the WR12BS/V and WR12BS is product status: WR12BS/V is obsolete, while WR12BS is active in production with improved compliance documentation (RoHS3 Compliant, REACH Unaffected).
Parameter Comparison
| Parameter | WR12BS/V (Main Part) | WR12BS (Substitute) |
|---|---|---|
| Manufacturer | NKK Switches | NKK Switches |
| Series | WR | WR |
| Circuit Configuration | SPDT | SPDT |
| Switch Function | On-On | On-On |
| Current Rating | 15A (AC/DC) | 15A (AC/DC) |
| Voltage Rating - AC | 125V | 125V |
| Voltage Rating - DC | 30V | 30V |
| Actuator Type | Concave (Curved) | Concave (Curved) |
| Actuator Color | Ivory | Ivory |
| Mounting Type | Panel Mount, Snap-In | Panel Mount, Snap-In |
| Termination Style | Solder Lug | Solder Lug |
| Panel Cutout Dimensions | Rectangular - 34.20mm x 17.20mm | Rectangular - 34.20mm x 17.20mm |
| Ingress Protection | IP67 - Dust Tight, Waterproof | IP67 - Dust Tight, Waterproof |
| Operating Temperature | -25°C ~ 85°C | -25°C ~ 85°C |
| Mechanical Life | 30,000 Cycles | 30,000 Cycles |
| Electrical Life | 15,000 Cycles | 15,000 Cycles |
| Approval Agencies | EN, UL | EN, UL |
| Product Status | Obsolete | Active |
| RoHS Status | Not specified | RoHS3 Compliant |
| REACH Status | Not specified | REACH Unaffected |
Engineering Selection Recommendations
The WR12BS is the direct substitute for the obsolete WR12BS/V. Both parts are manufactured by NKK Switches and maintain identical electrical and mechanical specifications across all critical parameters. The WR12BS offers the advantage of active production status and current regulatory compliance documentation (RoHS3 Compliant, REACH Unaffected), making it the appropriate selection for new designs, replacements, and system continuity applications. Both parts carry EN and UL approvals, ensuring compatibility with regulated applications.
Frequently Asked Questions (FAQ)
Q: Can the WR12BS directly replace the WR12BS/V without circuit modification?
A: Yes. The WR12BS is a direct substitute with identical electrical ratings (15A AC/DC, 125V AC, 30V DC), circuit configuration (SPDT On-On), mechanical specifications, and panel cutout dimensions (34.20mm x 17.20mm). No circuit or mechanical modifications are required.
Q: What is the difference between WR12BS/V and WR12BS?
A: The WR12BS/V is obsolete, while the WR12BS is active in production. The WR12BS includes current regulatory compliance documentation (RoHS3 Compliant, REACH Unaffected). All electrical and mechanical parameters are identical.
Q: Are the panel cutout dimensions identical?
A: Yes. Both the WR12BS/V and WR12BS require a rectangular panel cutout of 34.20mm x 17.20mm, ensuring mechanical compatibility in existing panel installations.
Q: Do both parts meet the same regulatory approvals?
A: Yes. Both the WR12BS/V and WR12BS carry EN and UL approvals. The WR12BS additionally documents RoHS3 compliance and REACH unaffected status.
Q: What is the termination style for both parts?
A: Both parts use solder lug termination, maintaining identical connection methodology and PCB integration requirements.
Q: Are the actuator specifications the same?
A: Yes. Both parts feature a concave (curved) ivory actuator with no marking, providing identical user interface and tactile characteristics.
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