Bulgin MP0034 Equivalent & Substitute Parts

Part Overview

The Bulgin MP0034 is a DPST pushbutton switch rated for 5A at 250V AC and 2A at 28V DC, designed for anti-vandal panel mount applications with rear mounting configuration. The part is currently obsolete, making identification of suitable substitutes essential for ongoing maintenance, repair, and system upgrades. The MP0034 features a round flush button actuator with solder lug termination and mechanical durability rated at 250,000 cycles.

Substiute Parts

MP0034

BulginIn Stock: 881MP0034 Datasheet

Current PartRFQ

MP0031

BulginIn Stock: 857MP0031 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MP0034 is determined by strict equivalence across the following critical parameters:

Circuit configuration must remain DPST-NO/NC with identical On-Mom, Off-Mom switching function. Electrical ratings must match or exceed the original: 5A at 250V AC and 2A at 28V DC. Actuator type, termination style (solder lug), and operating temperature range must be identical. The substitute part must maintain anti-vandal design classification and round flush button configuration.

The Bulgin MP0031 qualifies as a direct substitute based on these criteria. Both parts share identical circuit topology, electrical ratings, actuator geometry, termination method, and temperature operating range. The primary difference is mounting orientation (front versus rear) and enhanced mechanical durability in the substitute (1,000,000 cycles versus 250,000 cycles), which represents an improvement rather than a deviation from specification.

Parameter Comparison

Engineering Selection Recommendations

The Bulgin MP0031 is the qualified substitute for the obsolete MP0034. Selection is based on electrical equivalence, identical circuit topology, and matching mechanical specifications across all critical parameters. The MP0031 maintains active product status, ensuring ongoing availability and supply chain continuity. Both parts carry ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements.

The MP0031 provides enhanced mechanical durability (1,000,000 cycles versus 250,000 cycles) and IP66 ingress protection, representing functional improvements over the original specification. The primary consideration is mounting orientation: the MP0034 uses rear panel mount configuration while the MP0031 uses front panel mount. Panel cutout dimensions differ slightly (18.90mm versus 19.20mm), requiring verification of mechanical fit within the target application enclosure.

Frequently Asked Questions (FAQ)

Q: Can the MP0031 directly replace the MP0034 in existing applications?

A: Electrical and functional compatibility is complete. Mechanical compatibility depends on panel mounting orientation and cutout dimensions. Rear-mount applications require verification that front-mount orientation is acceptable for the system design. Panel cutout diameter tolerance (18.90mm versus 19.20mm) must be confirmed against enclosure specifications.

Q: What are the key differences between these parts?

A: Both parts share identical electrical ratings (5A at 250V AC, 2A at 28V DC), circuit configuration (DPST-NO/NC), and actuator design. The MP0031 differs in mounting orientation (front versus rear), mechanical life rating (1,000,000 versus 250,000 cycles), and includes IP66 ingress protection. The MP0031 is active product status while the MP0034 is obsolete.

Q: Are there any compliance or certification differences?

A: Both parts are ROHS3 compliant and REACH unaffected. No compliance differences exist between the two parts.

Q: What is the impact of different panel cutout dimensions?

A: The MP0034 requires an 18.90mm circular cutout while the MP0031 requires 19.20mm. This 0.30mm difference may require panel modification or verification that existing cutouts accommodate the larger diameter. Mechanical fit must be confirmed before substitution.

Q: Why does the MP0031 have higher mechanical life rating?

A: The MP0031 is rated for 1,000,000 mechanical cycles compared to 250,000 cycles for the MP0034. This represents an engineering improvement in the substitute part and does not affect substitution eligibility. Both maintain identical electrical life ratings of 35,000 cycles.