NKK Switches E2011P Toggle Switch SPST Equivalent & Substitute Parts

Part Overview

The NKK Switches E2011P is a panel-mount toggle switch with SPST (Single Pole Single Throw) circuit configuration, rated for 0.4VA at 28V AC/DC. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and redesign applications. The E2011P features a standard round actuator with PC pin termination and non-illuminated operation across an operating temperature range of -10°C to 70°C.

Substiute Parts

E2011P

NKK SwitchesIn Stock: 793E2011P Datasheet

Current PartRFQ

M2011SS1W03

NKK SwitchesIn Stock: 1615M2011SS1W03 Datasheet

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100SP1T1B1M2QEH

E-SwitchIn Stock: 4098100SP1T1B1M2QEH Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the E2011P is determined by the following critical parameters: circuit configuration (SPST), mounting type (panel mount), termination style (PC pin), actuator type (standard round), and electrical ratings that meet or exceed the original specification. Panel cutout dimensions and bushing thread specifications must accommodate mechanical installation compatibility.

The substitute parts identified fall into two categories based on functional compatibility:

Category 1 - Direct SPST Substitutes: Parts maintaining SPST circuit configuration with equivalent or superior electrical ratings and mechanical compatibility.

Category 2 - Functional Alternatives: Parts with enhanced circuit capability (SPDT) that can operate in SPST mode, offering improved electrical ratings and modern compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

M2011SS1W03 (NKK Switches): This SPST substitute maintains identical circuit configuration and mechanical mounting compatibility with the E2011P. It provides significantly higher current capacity (6A AC / 4A DC) and voltage rating (125V AC / 30V DC), ensuring operation within safe margins for low-voltage applications. The M2011SS1W03 features ROHS3 compliance and an extended operating temperature range (-30°C to 85°C). However, the bushing thread differs (1/4-40 versus M6 x 0.75), requiring panel modification or adapter hardware. Electrical life is reduced to 25,000 cycles compared to the E2011P's 50,000 cycles.

100SP1T1B1M2QEH (E-Switch): This SPDT substitute offers the highest current capacity (5A AC/DC) and maintains 28V DC rating compatibility with the E2011P. The part is currently active in production with ROHS3 compliance and extended temperature range (-30°C to 85°C). The SPDT configuration provides functional flexibility for applications requiring switching between two states. Panel cutout diameter (6.35mm) and bushing thread (1/4-40) differ from the original, necessitating mechanical adaptation. Electrical life of 40,000 cycles is lower than the E2011P specification.

Selection between substitutes depends on application requirements: choose M2011SS1W03 for direct SPST functionality with NKK Switches continuity; select 100SP1T1B1M2QEH for active product status and maximum current capacity with SPDT capability.

Frequently Asked Questions (FAQ)

Q: Can the M2011SS1W03 directly replace the E2011P without modification?

A: Electrical and functional compatibility is confirmed. However, mechanical adaptation is required due to bushing thread difference (1/4-40 versus M6 x 0.75). Panel cutout dimensions are identical (6.50mm circular), but the threaded bushing requires modification or adapter hardware for secure mounting.

Q: What is the significance of the SPDT circuit in the 100SP1T1B1M2QEH compared to the SPST E2011P?

A: SPDT (Single Pole Double Throw) provides two output positions versus SPST (Single Pole Single Throw) single output. The 100SP1T1B1M2QEH can operate in SPST mode by using only one output terminal, making it functionally compatible while offering enhanced capability. The SPDT configuration does not prevent SPST operation.

Q: Why does the M2011SS1W03 have lower electrical life (25,000 cycles) than the E2011P (50,000 cycles)?

A: Electrical life ratings reflect design and manufacturing specifications for each product series. The M2011SS1W03's 25,000-cycle rating remains suitable for most industrial applications. Application-specific duty cycle analysis is necessary to determine if this reduction impacts system reliability.

Q: Are there compliance differences between the E2011P and substitute parts?

A: The E2011P is RoHS non-compliant. Both M2011SS1W03 and 100SP1T1B1M2QEH are ROHS3 compliant, meeting current environmental regulations. All three parts are REACH unaffected and classified as EAR99 for export control purposes.

Q: What mechanical modifications are required for panel installation?

A: The E2011P uses M6 x 0.75 bushing thread, while both substitutes use 1/4-40 thread. Panel drilling and bushing replacement or adapter hardware installation is necessary. Panel cutout diameter for M2011SS1W03 matches the original (6.50mm); 100SP1T1B1M2QEH requires 6.35mm cutout (0.15mm smaller).

Q: Can the 100SP1T1B1M2QEH be used in applications requiring SPST functionality?

A: Yes. The SPDT configuration of the 100SP1T1B1M2QEH can function as SPST by connecting only one output terminal. This provides SPST operation with enhanced electrical ratings and active product status, though the additional pole remains unused.