MM1-B-32-620-1-2HD-B-C Circuit Breaker Equivalent & Substitute Parts

Part Overview

The MM1-B-32-620-1-2HD-B-C is a single-pole magnetic hydraulic delay circuit breaker manufactured by Carling Technologies, rated for 20A at 250V AC and 80V DC. This component is designed for panel mount applications with lever actuation and is currently in active production status. Equivalent and substitute parts are necessary to address supply chain continuity, inventory management, and design flexibility across manufacturing environments where alternative qualified sources provide identical electrical and mechanical performance.

Substiute Parts

MM1-B-32-620-1-2HD-B-C

Carling TechnologiesIn Stock: 1195MM1-B-32-620-1-2HD-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

Substitution eligibility for the MM1-B-32-620-1-2HD-B-C is determined by strict parametric equivalence across all electrical and mechanical specifications. The following criteria establish substitutability:

Mandatory Matching Parameters:

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

All substitute parts listed below meet these exact specifications. Substitutes are sourced from Sensata-Airpax and Sensata Technologies – Airpax, manufacturers qualified to provide equivalent performance in this circuit breaker category. Compliance certifications vary by part number but include recognized approval agencies (UL1077, CSA, TUV).

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts are active production components with confirmed inventory availability. Selection among equivalent parts should be based on the following factors:

Compliance Certifications: The main part MM1-B-32-620-1-2HD-B-C carries CCC, CSA, and UL1077 approvals. Substitute parts carry the following certifications:

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

RoHS Compliance: All substitute parts are RoHS Compliant. The main part is ROHS3 Compliant, representing a higher compliance standard.

Moisture Sensitivity Level (MSL): All Sensata-Airpax substitute parts specify MSL 1 (Unlimited), indicating no moisture sensitivity constraints during storage and handling.

Inventory Availability: All substitute parts maintain active stock levels ranging from 919 to 1212 pieces, supporting immediate procurement.

Frequently Asked Questions (FAQ)

Q: Can IEL1-1-51-20.0-01-V be used as a direct replacement for MM1-B-32-620-1-2HD-B-C?

A: Yes. Both parts are single-pole magnetic hydraulic delay circuit breakers with identical electrical ratings (20A, 250V AC, 80V DC) and panel mount lever actuation. Electrical and mechanical compatibility is established through parametric equivalence.

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

A: Both IEG and IEL series parts meet the same electrical and mechanical specifications for this application. The series designation reflects internal design architecture within the Sensata-Airpax product line. Selection between series is based on availability, certification requirements, and supply chain preferences.

Q: Are there packaging differences among the substitute parts?

A: Yes. The main part MM1-B-32-620-1-2HD-B-C is specified with packaging designation "-" (not detailed). Most Sensata-Airpax substitutes are supplied in Bulk packaging. IUG1-1-62-30.0-CQ-01 also carries packaging designation "-". Packaging specifications should be confirmed with the supplier for procurement requirements.

Q: Does the ROHS3 compliance of the main part affect substitute selection?

A: The main part carries ROHS3 Compliant status, while all substitutes are RoHS Compliant. ROHS3 represents a more recent compliance iteration. If ROHS3 certification is a mandatory requirement, the main part MM1-B-32-620-1-2HD-B-C should be retained. For applications where RoHS Compliant status is sufficient, all substitutes are acceptable.

Q: What is the significance of MSL 1 (Unlimited) on the substitute parts?

A: MSL 1 (Unlimited) indicates that the component has no moisture sensitivity limitations. These parts can be stored and handled without special moisture control measures, simplifying logistics and inventory management compared to components with higher MSL ratings.

Q: Can I mix substitute parts from different series in the same application?

A: Yes. All listed substitutes meet identical electrical and mechanical specifications. Multiple series can be used interchangeably within the same circuit design or system, provided that compliance certifications align with application requirements.

Q: Which substitute part has the highest inventory availability?

A: IELK1-1-72-20.0-01-V maintains the highest inventory level at 1212 pieces, followed by MM1-B-32-620-1-2HD-B-C at 1151 pieces.