MM1-B-34-620-1-2EC-B-C Circuit Breaker Equivalent & Substitute Parts

Part Overview

The MM1-B-34-620-1-2EC-B-C is a single-pole magnetic hydraulic delay circuit breaker manufactured by Carling Technologies, rated for 20A at 250V AC and 80V DC with lever panel mount actuation. This component is classified as Active product status with full compliance to CCC, CSA, and UL1077 standards. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical configuration, and functional characteristics to ensure direct interchangeability in circuit protection applications.

Substiute Parts

MM1-B-34-620-1-2EC-B-C

Carling TechnologiesIn Stock: 928MM1-B-34-620-1-2EC-B-C Datasheet

Current PartRFQ

IEG1-1-63-20.0-01-V

Sensata-AirpaxIn Stock: 1152IEG1-1-63-20.0-01-V Datasheet

Parametric EquivalentRFQ

IEG6-1-72-20.0-01-V

Sensata-AirpaxIn Stock: 1099IEG6-1-72-20.0-01-V Datasheet

Parametric EquivalentRFQ

IEL1-1-51-20.0-01-V

Sensata-AirpaxIn Stock: 968IEL1-1-51-20.0-01-V Datasheet

Parametric EquivalentRFQ

IELK1-1-72-20.0-01-V

Sensata-AirpaxIn Stock: 1256IELK1-1-72-20.0-01-V Datasheet

Parametric EquivalentRFQ

IUG1-1-62-30.0-CQ-01

Sensata Technologies – AirpaxIn Stock: 1195IUG1-1-62-30.0-CQ-01 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MM1-B-34-620-1-2EC-B-C are qualified based on the following critical parameters that must match exactly:

• Current Rating: 20A
• Voltage Rating - AC: 250V
• Voltage Rating - DC: 80V
• Breaker Type: Magnetic (Hydraulic Delay)
• Mounting Type: Panel Mount
• Actuator Type: Lever
• Number of Poles: 1
• Illumination: None

All identified substitute parts meet these electrical and mechanical specifications. Substitution is valid when all parameters align with the original component requirements. Sensata-Airpax manufactures four parametric equivalents across the IEG, IEL, and IUG series, each maintaining identical functional and electrical characteristics to the Carling Technologies MM1 series breaker.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and are manufactured by Sensata-Airpax, a qualified alternative source to Carling Technologies. Selection among substitute options is based on compliance certifications and availability:

IEG1-1-63-20.0-01-V and IEG6-1-72-20.0-01-V hold CSA, TUV, and UL1077 certifications with RoHS compliance and MSL 1 rating, supporting applications requiring international standards recognition.

IEL1-1-51-20.0-01-V and IELK1-1-72-20.0-01-V provide RoHS compliance and MSL 1 rating. IELK1-1-72-20.0-01-V carries UL1077 certification. IEL1-1-51-20.0-01-V does not list specific approval agencies in provided data.

IUG1-1-62-30.0-CQ-01 offers RoHS compliance and MSL 1 rating with no specific approval agencies listed in provided data.

All parts share identical electrical specifications (20A, 250V AC, 80V DC) and mechanical configuration (lever-actuated, single-pole, panel mount, magnetic hydraulic delay). Selection should prioritize parts with certifications matching the original application requirements.

Frequently Asked Questions (FAQ)

Q: Can IEG1-1-63-20.0-01-V directly replace MM1-B-34-620-1-2EC-B-C?

A: Yes. Both components share identical electrical ratings (20A, 250V AC, 80V DC), breaker type (magnetic hydraulic delay), mounting configuration (panel mount), and actuator type (lever). Functional interchangeability is confirmed across all critical parameters.

Q: What is the difference between IEG and IEL series substitutes?

A: Both IEG and IEL series parts meet identical electrical and mechanical specifications for this 20A application. Series designation reflects internal design architecture and manufacturing lineage within Sensata-Airpax product families. Electrical performance and panel mount compatibility remain equivalent.

Q: Are all substitute parts RoHS compliant?

A: Yes. All identified substitute parts carry RoHS compliance status. The original MM1-B-34-620-1-2EC-B-C is ROHS3 compliant, and all Sensata-Airpax equivalents maintain RoHS compliance.

Q: What certifications should I verify for my application?

A: The original part carries CCC, CSA, and UL1077 certifications. IEG series parts (IEG1-1-63-20.0-01-V and IEG6-1-72-20.0-01-V) provide CSA, TUV, and UL1077 coverage. IELK1-1-72-20.0-01-V carries UL1077 certification. Confirm that substitute part certifications align with your application's regulatory requirements.

Q: Is packaging a consideration for substitution?

A: The original part is specified with "-" packaging notation. Substitute parts are available in Bulk packaging (IEG and IEL series) or "-" notation (IUG series). Packaging does not affect electrical or mechanical interchangeability; it reflects order quantity and delivery format only.

Q: Can I use IUG1-1-62-30.0-CQ-01 as a substitute?

A: Yes. IUG1-1-62-30.0-CQ-01 meets all electrical (20A, 250V AC, 80V DC) and mechanical specifications (panel mount, lever actuator, single pole, magnetic hydraulic delay). RoHS compliance and MSL 1 rating are confirmed. Verify that the absence of listed approval agencies does not conflict with your application's certification requirements.

Q: What is MSL 1 rating?

A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life with no special moisture control requirements during storage or handling. All substitute parts carry MSL 1 rating, matching standard industrial circuit breaker handling practices.