WR18BS/V Equivalent & Substitute Parts

Part Overview

The WR18BS/V is a rocker switch manufactured by NKK Switches, classified as SPDT (Single Pole Double Throw) with momentary-off-momentary (Mom-Off-Mom) switching function. This panel-mount, snap-in component is rated for 15A at 125V AC and 30V DC, featuring an ivory concave actuator with solder lug termination and IP67 ingress protection.

The WR18BS/V is currently listed as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

WR18BS/V

NKK SwitchesIn Stock: 1250WR18BS/V Datasheet

Current PartRFQ

WR18BS

NKK SwitchesIn Stock: 762WR18BS Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the WR18BS/V is determined by strict equivalence across the following critical parameters:

• Circuit configuration (SPDT)
• Switch function (Mom-Off-Mom)
• Current rating (15A AC/DC)
• Voltage ratings (125V AC, 30V DC)
• Mounting type (Panel Mount, Snap-In)
• Actuator type (Concave)
• Termination style (Solder Lug)
• Ingress protection rating (IP67)
• Panel cutout dimensions (34.20mm x 17.20mm)
• Operating temperature range (-25°C to 85°C)
• Mechanical and electrical life specifications

The WR18BS (without the /V suffix variant designation) from NKK Switches meets all these criteria and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The WR18BS serves as the direct substitute for the obsolete WR18BS/V. Both parts are manufactured by NKK Switches and maintain identical electrical, mechanical, and dimensional specifications. The primary distinction is product status: WR18BS/V is obsolete while WR18BS is active and currently in production.

Both parts carry EN and UL approvals, ensuring compliance with applicable regulatory standards. The WR18BS is RoHS3 compliant and REACH unaffected, providing additional assurance for modern supply chain requirements.

For applications requiring the WR18BS/V, the WR18BS represents the appropriate long-term solution, offering continued availability and manufacturing support while maintaining full functional and physical compatibility.

Frequently Asked Questions (FAQ)

Q: Can WR18BS directly replace WR18BS/V in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including circuit configuration, current and voltage ratings, mounting dimensions, and operating characteristics. The /V suffix designation on the obsolete part does not indicate a functional difference relevant to substitution.

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

A: WR18BS/V is obsolete and no longer manufactured. WR18BS is active and in current production. For new designs or ongoing procurement, WR18BS ensures supply chain continuity and manufacturer support.

Q: Are the panel cutout dimensions identical?

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

Q: Do both parts meet the same regulatory approvals?

A: Yes. Both WR18BS/V and WR18BS carry EN and UL approvals. Additionally, WR18BS is RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.

Q: Is there a difference in termination or solder compatibility?

A: No. Both parts feature solder lug termination with epoxy sealed terminals, maintaining identical assembly and soldering requirements.

Q: What is the inventory status for each part?

A: WR18BS/V has 1,164 pieces available as new original stock. WR18BS has 693 pieces available as new original stock in bulk packaging.