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

Part Overview

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

Substiute Parts

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

Carling TechnologiesIn Stock: 1004MM1-B-34-620-1-2JA-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-34-620-1-2JA-B-C are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• 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

All identified substitute parts match these parameters exactly. Substitution is valid when all critical parameters align, ensuring equivalent circuit protection performance and mechanical compatibility in panel-mount installations. Regulatory compliance certifications vary by manufacturer but maintain UL1077 approval across all alternatives.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain active product status and comply with RoHS regulations. The primary Carling Technologies part MM1-B-34-620-1-2JA-B-C carries CCC, CSA, and UL1077 certifications. Sensata-Airpax alternatives provide equivalent electrical and mechanical specifications with the following certification profiles:

• IEG1-1-63-20.0-01-V: CSA, TUV, UL1077 approved
• IEG6-1-72-20.0-01-V: CSA, TUV, UL1077 approved
• IEL1-1-51-20.0-01-V: UL1077 approved
• IELK1-1-72-20.0-01-V: UL1077 approved
• IUG1-1-62-30.0-CQ-01: No specific approval agencies listed in provided data

Selection among substitutes depends on regulatory requirements specific to the application. All parts share identical electrical ratings (20A, 250V AC, 80V DC) and mechanical characteristics (panel mount, lever actuation, single pole). Moisture Sensitivity Level (MSL) 1 (Unlimited) is specified for all Sensata-Airpax alternatives, indicating no moisture-related handling restrictions.

Frequently Asked Questions (FAQ)

Q: What determines if a circuit breaker can substitute for the MM1-B-34-620-1-2JA-B-C?

A: Substitution is valid when the alternative part matches all critical electrical parameters: 20A current rating, 250V AC voltage rating, 80V DC voltage rating, magnetic hydraulic delay breaker type, panel mount configuration, lever actuation, and single-pole design. All listed substitutes meet these requirements.

Q: Are all substitute parts mechanically compatible with existing panel installations?

A: Yes. All substitute parts share identical mounting type (panel mount), actuator type (lever), and pole configuration (1 pole) as the original MM1-B-34-620-1-2JA-B-C. Mechanical compatibility is ensured for direct replacement in panel-mount applications.

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

A: Both IEG and IEL series parts meet the electrical and mechanical specifications of the MM1-B-34-620-1-2JA-B-C. The series designation reflects different product lines within Sensata-Airpax. All variants listed (IEG1-1-63-20.0-01-V, IEG6-1-72-20.0-01-V, IEL1-1-51-20.0-01-V, IELK1-1-72-20.0-01-V) provide equivalent circuit protection performance.

Q: Do all substitutes carry the same regulatory certifications?

A: Regulatory certifications vary by part number. The original MM1-B-34-620-1-2JA-B-C carries CCC, CSA, and UL1077 approvals. Sensata-Airpax alternatives carry UL1077 certification across all models, with additional CSA and TUV approvals on IEG series parts. Application-specific regulatory requirements determine which substitute is appropriate.

Q: What is the inventory status of substitute parts?

A: All substitute parts maintain active product status with current inventory availability: IEG1-1-63-20.0-01-V (1051 pcs), IEG6-1-72-20.0-01-V (1032 pcs), IEL1-1-51-20.0-01-V (919 pcs), IELK1-1-72-20.0-01-V (1212 pcs), and IUG1-1-62-30.0-CQ-01 (1095 pcs).

Q: Are substitute parts RoHS compliant?

A: Yes. The original MM1-B-34-620-1-2JA-B-C is ROHS3 compliant. All Sensata-Airpax substitutes are RoHS compliant, meeting environmental regulatory requirements for electronic components.

Q: What packaging options are available for substitute parts?

A: Sensata-Airpax substitutes are supplied in bulk packaging, with the exception of IUG1-1-62-30.0-CQ-01, which is supplied without specified packaging designation in the provided data.