WR12AS/UCV Equivalent & Substitute Parts

Part Overview

The WR12AS/UCV is a rocker switch manufactured by NKK Switches, designed for panel-mount applications requiring SPDT (Single Pole Double Throw) switching functionality. This component operates at 15A (AC/DC) with a 125V AC / 30V DC voltage rating and features IP67 ingress protection with epoxy sealed terminals. The WR12AS/UCV is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations.

Substiute Parts

WR12AS/UCV

NKK SwitchesIn Stock: 961WR12AS/UCV Datasheet

Current PartRFQ

WR12AS/CUL

NKK SwitchesIn Stock: 808WR12AS/CUL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WR12AS/UCV is determined by strict equivalence across the following critical parameters:

• Electrical Specifications: Circuit configuration (SPDT), current rating (15A AC/DC), voltage ratings (125V AC / 30V DC), and switch function (On-On)
• Mechanical Compatibility: Mounting type (Panel Mount, Snap-In), actuator type (Concave/Curved), panel cutout dimensions (34.20mm x 17.20mm), and termination style (Solder Lug)
• Environmental Performance: Ingress protection rating (IP67), operating temperature range (-25°C to 85°C), mechanical life (30,000 cycles), and electrical life (15,000 cycles)
• Regulatory Compliance: Approval agencies (EN, UL)

The WR12AS/CUL meets all substitution criteria as a direct equivalent within the NKK Switches WR series.

Parameter Comparison

Engineering Selection Recommendations

The WR12AS/CUL is a direct functional equivalent to the WR12AS/UCV. Both components share identical electrical, mechanical, and environmental specifications within the NKK Switches WR series. The primary distinction is product status: the WR12AS/UCV is obsolete, while the WR12AS/CUL is active and carries ROHS3 compliance certification.

For applications requiring the WR12AS/UCV, the WR12AS/CUL provides continuity of supply with enhanced regulatory compliance. The active product status of the WR12AS/CUL ensures long-term availability and manufacturing support.

Frequently Asked Questions (FAQ)

Q: Can the WR12AS/CUL directly replace the WR12AS/UCV in existing designs?

A: Yes. Both parts are identical in electrical performance (15A at 125V AC / 30V DC, SPDT On-On function), mechanical form factor (Panel Mount, Snap-In with 34.20mm x 17.20mm cutout), and environmental ratings (IP67, -25°C to 85°C operating range). Panel cutout dimensions and solder lug termination are identical, requiring no PCB or enclosure modifications.

Q: What is the significance of the product status difference?

A: The WR12AS/UCV is classified as obsolete, indicating discontinued manufacturing. The WR12AS/CUL is active, ensuring ongoing availability, manufacturing support, and compliance with current regulatory standards including ROHS3.

Q: Are there any compliance differences between these parts?

A: Both parts carry EN and UL approvals. The WR12AS/CUL additionally specifies ROHS3 compliance, reflecting current environmental and hazardous substance restrictions.

Q: Do these parts have identical mechanical life ratings?

A: Yes. Both the WR12AS/UCV and WR12AS/CUL are rated for 30,000 mechanical cycles and 15,000 electrical cycles, providing equivalent operational durability.

Q: Is the panel cutout dimension identical for both parts?

A: Yes. Both parts require a rectangular panel cutout of 34.20mm x 17.20mm, ensuring direct mechanical compatibility without enclosure modification.