NKK Switches P2011BP Toggle Switch SPST Equivalent & Substitute Parts

Part Overview

The P2011BP is a panel-mounted toggle switch manufactured by NKK Switches, configured as a Single Pole Single Throw (SPST) on-off switch rated for 10A at 125V AC. This component is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing maintenance, repair, and new design applications where legacy component compatibility is required.

Substiute Parts

P2011BP

NKK SwitchesIn Stock: 889P2011BP Datasheet

Current PartRFQ

M2011B2B1W03

NKK SwitchesIn Stock: 2509M2011B2B1W03 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the P2011BP is determined by strict alignment of the following critical parameters:

Mechanical Compatibility Requirements:

• Panel cutout dimensions (Circular - 12.50mm Dia)
• Bushing thread specification (M12 x 1)
• Actuator type and length (Standard Round, 17.50mm)
• Termination style (PC Pin)
• Mounting configuration (Panel Mount)

Electrical Compatibility Requirements:

• Circuit configuration (SPST)
• Switch function (On-Off)
• Voltage rating minimum (125V AC)
• Current rating minimum (10A AC)

Regulatory & Environmental Requirements:

• RoHS3 compliance
• Operating temperature range compatibility

The substitute part M2011B2B1W03 maintains mechanical and mounting compatibility with identical panel cutout dimensions, bushing thread, actuator specifications, and termination style. However, the current rating is reduced to 6A AC (4A DC), which represents a functional limitation for applications requiring the full 10A capacity of the original P2011BP.

Parameter Comparison

Engineering Selection Recommendations

The M2011B2B1W03 provides mechanical and electrical interchangeability for panel-mount applications where the reduced current rating of 6A AC is acceptable. Both components maintain ROHS3 compliance and identical mechanical interfaces, enabling direct physical substitution in panel assemblies.

Selection of M2011B2B1W03 is appropriate for applications operating at or below 6A AC at 125V. Applications requiring the full 10A capacity of the P2011BP cannot use this substitute without circuit redesign or parallel switching configurations.

The extended operating temperature range of M2011B2B1W03 (-30°C to 85°C versus -10°C to 85°C) provides additional environmental margin. The addition of epoxy sealed terminals on the substitute part offers enhanced protection against moisture ingress and contamination.

Frequently Asked Questions (FAQ)

Q: Can M2011B2B1W03 directly replace P2011BP in all applications?

A: Physical installation is compatible due to identical panel cutout dimensions (12.50mm), bushing thread (M12 x 1), and termination style (PC Pin). Electrical compatibility depends on circuit current requirements. The substitute is rated for 6A AC maximum, compared to 10A AC for the original part. Applications drawing more than 6A AC require alternative solutions.

Q: What are the key mechanical compatibility factors?

A: Panel cutout diameter (12.50mm circular), bushing thread specification (M12 x 1), actuator type (standard round), actuator length (17.50mm), and PC pin termination must all match. Both parts meet these requirements.

Q: Does the substitute part meet the same regulatory standards?

A: Both P2011BP and M2011B2B1W03 are ROHS3 compliant and REACH unaffected, meeting equivalent regulatory requirements for component selection.

Q: What is the significance of epoxy sealed terminals on the substitute?

A: Epoxy sealed terminals on M2011B2B1W03 provide enhanced environmental protection compared to the standard termination of P2011BP. This feature improves reliability in applications exposed to moisture, humidity, or contamination.

Q: Are there current rating limitations when using M2011B2B1W03?

A: Yes. The substitute is rated for 6A AC at 125V, compared to 10A AC for P2011BP. Circuit designs operating above 6A AC require the original part or alternative components rated for higher current.

Q: How do the operating temperature ranges compare?

A: M2011B2B1W03 operates from -30°C to 85°C, providing a 20°C lower temperature margin compared to P2011BP (-10°C to 85°C). Both support the standard industrial temperature range of -10°C to 85°C.