Equivalent & Substitute Parts for MPL031

Part Overview

The Bulgin MPL031 is an anti-vandal pushbutton switch with SPST circuit configuration, rated for 2A at 50V AC/DC. This component features panel mount front installation with IP66 ingress protection and solder lug termination. The MPL031 is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations where this switch type is required.

Substiute Parts

MPL031

BulginIn Stock: 1207MPL031 Datasheet

Current PartRFQ

1241.6821.1110000

SCHURTER Inc.In Stock: 12751241.6821.1110000 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MPL031 is determined by the following critical parameters:

Circuit configuration must remain SPST to maintain identical electrical function. The anti-vandal panel mount front installation type is mandatory for mechanical compatibility with existing enclosure designs. Panel cutout dimensions must accommodate the 19.20mm circular opening, with tolerance for minor variations in competing designs.

Current and voltage ratings establish the operational envelope. The substitute must meet or exceed the 2A AC/DC and 50V AC/DC specifications to ensure safe operation in the original application. Ingress protection rating of IP66 or higher maintains environmental sealing requirements. Termination style compatibility depends on circuit board design; solder lug termination is preferred but quick connect alternatives may be acceptable with appropriate adapter considerations.

Operating temperature range, mechanical life, and electrical life specifications define reliability expectations. RoHS3 compliance and REACH unaffected status are regulatory requirements for component selection in current manufacturing environments.

Parameter Comparison

Engineering Selection Recommendations

The SCHURTER 1241.6821.1110000 is an active product with ROHS3 compliance and REACH unaffected status, making it suitable for applications requiring current manufacturing standards. The substitute exceeds the original MPL031 specifications in current rating (12A vs 2A), AC voltage rating (250V vs 50V), mechanical life (100,000 vs 8,000 cycles), and operating temperature range (-20°C to 85°C vs -20°C to 70°C).

The primary consideration for substitution is termination style compatibility. The MPL031 uses solder lug termination while the SCHURTER part uses quick connect 0.187" (4.7mm) termination. Circuit board redesign or adapter harnesses may be required. Panel cutout dimensions are compatible within standard manufacturing tolerances (19.20mm vs 19.10mm). Ingress protection differs slightly (IP66 vs IP64), with the substitute providing adequate dust and water resistance for most applications.

Frequently Asked Questions (FAQ)

Q: Can the SCHURTER 1241.6821.1110000 directly replace the Bulgin MPL031 without circuit board modification?

A: Direct replacement requires termination compatibility assessment. The MPL031 uses solder lug termination while the SCHURTER part uses quick connect 0.187" (4.7mm) termination. If the circuit board is designed for solder lug connections, termination adapter harnesses or board redesign is necessary.

Q: Are the panel cutout dimensions compatible between these two switches?

A: Yes. The MPL031 requires a 19.20mm circular cutout while the SCHURTER part requires 19.10mm. This 0.10mm difference is within standard panel drilling tolerances and does not present a mechanical compatibility issue.

Q: Does the SCHURTER substitute meet the voltage and current requirements of the original application?

A: The SCHURTER 1241.6821.1110000 exceeds the MPL031 specifications. It is rated for 12A at 250V AC and 30V DC, compared to the original 2A at 50V AC/DC. This higher rating ensures safe operation in applications designed for the lower-rated MPL031.

Q: What is the difference in ingress protection between these components?

A: The MPL031 provides IP66 (dust tight, water resistant) while the SCHURTER part provides IP64 (dust tight, water resistant). Both ratings offer adequate environmental sealing for panel-mounted applications. IP66 provides marginally higher protection against water jets; IP64 is suitable for most industrial and commercial environments.

Q: Are both components RoHS3 compliant?

A: Yes. Both the Bulgin MPL031 and SCHURTER 1241.6821.1110000 are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for component manufacturing and use.

Q: What is the mechanical life difference and does it affect component selection?

A: The MPL031 has 8,000 mechanical cycles while the SCHURTER part has 100,000 cycles. The substitute provides significantly extended mechanical life, making it suitable for high-cycle applications where the original component may have reached end-of-life limitations.