MM1-B-64-620-1-2CB-B-C Circuit Breaker Equivalent & Substitute Parts

Part Overview

The MM1-B-64-620-1-2CB-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 lever-actuated panel mount breaker is designed for overcurrent protection in industrial and commercial applications. The product maintains active status with 995 units in current inventory stock.

Equivalent and substitute parts are necessary when the primary part becomes unavailable, when supply chain optimization is required, or when alternative manufacturers' components meet identical electrical and mechanical specifications. All substitute parts listed maintain functional equivalence through matching electrical ratings, mechanical mounting characteristics, and approval certifications.

Substiute Parts

MM1-B-64-620-1-2CB-B-C

Carling TechnologiesIn Stock: 1018MM1-B-64-620-1-2CB-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-64-620-1-2CB-B-C is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

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

All substitute parts listed below satisfy these requirements without exception. Each substitute maintains identical electrical performance characteristics and mechanical interface compatibility with the original MM1-B-64-620-1-2CB-B-C specification.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed are active products with current manufacturing status. Selection among equivalent parts may be based on the following factors:

Approval Certifications:

• MM1-B-64-620-1-2CB-B-C: CCC, CSA, UL1077
• IEG1-1-63-20.0-01-V: CSA, TUV, UL1077
• IEG6-1-72-20.0-01-V: CSA, TUV, UL1077
• IEL1-1-51-20.0-01-V: No approval agencies specified in data
• IELK1-1-72-20.0-01-V: UL1077
• IUG1-1-62-30.0-CQ-01: No approval agencies specified in data

RoHS Compliance:

• MM1-B-64-620-1-2CB-B-C: ROHS3 Compliant
• All Sensata-Airpax substitutes: RoHS Compliant

Inventory Availability:

• IELK1-1-72-20.0-01-V: 1212 units (highest availability)
• IEG1-1-63-20.0-01-V: 1051 units
• IUG1-1-62-30.0-CQ-01: 1095 units
• IEG6-1-72-20.0-01-V: 1032 units
• IEL1-1-51-20.0-01-V: 919 units (lowest availability)

Frequently Asked Questions (FAQ)

Q: What makes these parts electrically equivalent to the MM1-B-64-620-1-2CB-B-C?

A: All substitute parts maintain identical current rating (20A), AC voltage rating (250V), DC voltage rating (80V), breaker type (magnetic hydraulic delay), pole configuration (single pole), actuator type (lever), and mounting method (panel mount). These parameters define the electrical and mechanical function of the circuit breaker.

Q: Can I use any of these substitute parts interchangeably in my application?

A: Yes. All listed parts satisfy the same electrical and mechanical specifications. Physical installation compatibility depends on panel mount interface dimensions, which are not differentiated in the provided specifications.

Q: Are there differences in approval certifications between the main part and substitutes?

A: The main part MM1-B-64-620-1-2CB-B-C carries CCC, CSA, and UL1077 certifications. Sensata-Airpax IEG series parts carry CSA, TUV, and UL1077 certifications. The IELK1-1-72-20.0-01-V carries UL1077 certification. Verify that the substitute part's certification profile meets your application requirements.

Q: What is the difference between ROHS3 Compliant and RoHS Compliant?

A: The main part is ROHS3 Compliant, indicating compliance with the third iteration of the Restriction of Hazardous Substances directive. All Sensata-Airpax substitutes are listed as RoHS Compliant. Both designations indicate hazardous substance restrictions are met.

Q: Which substitute part has the highest inventory availability?

A: The IELK1-1-72-20.0-01-V from Sensata-Airpax has the highest inventory with 1212 units in stock.

Q: Do all parts have the same moisture sensitivity level?

A: The Sensata-Airpax substitute parts specify Moisture Sensitivity Level (MSL) 1 (Unlimited). The main part and IEL1-1-51-20.0-01-V do not specify MSL in the provided data.

Q: Are there any REACH compliance differences?

A: The main part MM1-B-64-620-1-2CB-B-C is listed as REACH Unaffected. IEG6-1-72-20.0-01-V is also listed as REACH Unaffected. Other substitute parts do not specify REACH status in the provided data.