WR18AF/UCV Equivalent & Substitute Parts

Part Overview

The WR18AF/UCV is a rocker switch manufactured by NKK Switches, featuring SPDT (Single Pole Double Throw) circuitry with momentary-off-momentary (Mom-Off-Mom) switching function. Rated for 15A at 125V AC and 30V DC, this panel-mount, snap-in component is designed for applications requiring reliable switching with IP67 ingress protection and epoxy-sealed terminals.

The WR18AF/UCV is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production or maintenance requirements for systems utilizing this switch configuration.

Substiute Parts

WR18AF/UCV

NKK SwitchesIn Stock: 993WR18AF/UCV Datasheet

Current PartRFQ

WR18AF/CUL

NKK SwitchesIn Stock: 988WR18AF/CUL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the WR18AF/UCV is based on electrical and mechanical parameter equivalence within the NKK Switches WR series. The substitute part must maintain identical specifications across the following critical parameters:

• Circuit configuration (SPDT)
• Switch function (Mom-Off-Mom)
• Current and voltage ratings (15A AC/DC, 125V AC, 30V DC)
• Mounting type and panel cutout dimensions (Panel Mount, Snap-In; 34.20mm x 17.20mm)
• Actuator type and color (Concave, Black)
• Termination style (Quick Connect - 0.250")
• Ingress protection rating (IP67)
• Operating temperature range (-25°C to 85°C)
• Mechanical and electrical life cycles (30,000 and 10,000 cycles respectively)
• Regulatory approvals (EN, UL)

Parts meeting these criteria are classified as direct electrical and mechanical equivalents suitable for replacement in existing designs.

Parameter Comparison

Engineering Selection Recommendations

The WR18AF/CUL is the direct equivalent substitute for the obsolete WR18AF/UCV. Both parts are manufactured by NKK Switches and share identical electrical and mechanical specifications, including circuit configuration, current and voltage ratings, mounting dimensions, and regulatory approvals (EN, UL).

The primary distinction is product status: the WR18AF/UCV is obsolete, while the WR18AF/CUL is active and currently in production. The WR18AF/CUL additionally carries ROHS3 compliance certification, meeting current environmental regulatory requirements.

For new designs or component replacement in existing systems, the WR18AF/CUL is the appropriate selection, offering equivalent performance with the advantage of active product status and modern compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can the WR18AF/CUL directly replace the WR18AF/UCV in existing applications?

A: Yes. The WR18AF/CUL is electrically and mechanically equivalent to the WR18AF/UCV. Both parts feature identical SPDT circuitry, 15A/125V AC ratings, Mom-Off-Mom switching function, panel-mount snap-in configuration, and panel cutout dimensions. Direct substitution is supported without design modification.

Q: What is the difference between WR18AF/UCV and WR18AF/CUL?

A: The parts are functionally identical. The primary differences are product status (WR18AF/UCV is obsolete; WR18AF/CUL is active) and compliance certification (WR18AF/CUL carries ROHS3 compliance). Both maintain the same electrical performance and mechanical interface.

Q: Are there packaging differences between these parts?

A: The WR18AF/UCV packaging specification is not detailed in available data. The WR18AF/CUL is supplied in bulk packaging. Confirm packaging requirements with the supplier for your specific procurement needs.

Q: Do both parts meet the same regulatory approvals?

A: Yes. Both the WR18AF/UCV and WR18AF/CUL carry EN and UL approvals. The WR18AF/CUL additionally meets ROHS3 compliance requirements.

Q: What is the panel cutout size for these switches?

A: Both parts require a rectangular panel cutout of 34.20mm x 17.20mm for snap-in mounting.

Q: Are these switches suitable for DC applications?

A: Yes. Both parts are rated for 15A at 30V DC, in addition to 125V AC operation, making them suitable for AC/DC applications within these voltage and current limits.