QMB-102-00ENN-3BA Equivalent & Substitute Parts

Part Overview

The QMB-102-00ENN-3BA is a thermal circuit breaker manufactured by Qualtek Electronics Corp., rated for 10A at 250V AC and 32V DC with push-to-reset panel mount actuation. This part is discontinued at DiGi Electronics, making equivalent and substitute parts necessary for ongoing system maintenance and new designs requiring identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Breaker Type	Thermal
Current Rating	10A
Voltage Rating - AC	250V
Voltage Rating - DC	32V
Actuator Type	Push to Reset
Mounting Type	Panel Mount
Number of Poles	1
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution for the QMB-102-00ENN-3BA is determined by strict equivalence across the following parameters: 10A current rating, 250V AC and 32V DC voltage ratings, thermal breaker type, push-to-reset actuation, single-pole configuration, and panel mount installation. All substitute parts listed maintain these electrical and mechanical specifications. Grouping reflects manufacturer origin and product status, with active parts prioritized over discontinued models.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Series	Current Rating	Voltage AC	Voltage DC	Breaker Type	Actuator Type	Mounting Type	Poles	Product Status	RoHS Status
QMB-102-00ENN-3BA	Qualtek Electronics Corp.	QMB	10A	250V	32V	Thermal	Push to Reset	Panel Mount	1	Discontinued	ROHS3 Compliant
QMB-103-00ENN-3BA	Qualtek	QMB	10A	250V	32V	Thermal	Push to Reset	Panel Mount	1	Active	ROHS3 Compliant
QLB-103-00DNN-3BA	Qualtek	QLB	10A	250V	32V	Thermal	Push to Reset	Panel Mount	1	Active	ROHS3 Compliant
QLB-103-11B3N-3BA	Qualtek	QLB	10A	250V	32V	Thermal	Push to Reset	Panel Mount	1	Active	ROHS3 Compliant
QMB-103-11C3N-3BA	Qualtek	QMB	10A	250V	32V	Thermal	Push to Reset	Panel Mount	1	Active	ROHS3 Compliant
CLB-103-11B3A-B-A	Carling Technologies	CLB	10A	250V	32V	Thermal	Push to Reset	Panel Mount	1	Active	ROHS3 Compliant
CMB-103-11C3N-B-A	Carling Technologies	CMB	10A	250V	32V	Thermal	Push to Reset	Panel Mount	1	Active	ROHS3 Compliant
W28-XQ1A-10	TE Connectivity Potter & Brumfield Relays	W28	10A	250V	32V	Thermal	Push to Reset	Panel Mount	1	Active	ROHS3 Compliant
W28-XQ1B-10	TE Connectivity Potter & Brumfield Relays	W28	10A	250V	32V	Thermal	Push to Reset	Panel Mount	1	Active	ROHS3 Compliant
W28-XT1A-10	TE Connectivity Potter & Brumfield Relays	W28	10A	250V	32V	Thermal	Push to Reset	Panel Mount	1	Active	RoHS non-compliant

Engineering Selection Recommendations

For applications requiring ROHS3 compliance, select from Qualtek QMB-103-00ENN-3BA, QLB-103-00DNN-3BA, QLB-103-11B3N-3BA, QMB-103-11C3N-3BA, Carling Technologies CLB-103-11B3A-B-A, CMB-103-11C3N-B-A, or TE Connectivity W28-XQ1A-10 and W28-XQ1B-10. All maintain identical electrical specifications and panel mount configuration.

For applications where RoHS compliance is not required, W28-XT1A-10 is available as an alternative, though it carries RoHS non-compliant status.

Qualtek QMB series parts (QMB-103-00ENN-3BA, QMB-103-11C3N-3BA) provide direct manufacturer continuity with the discontinued QMB-102-00ENN-3BA. Carling Technologies CLB and CMB series parts offer cross-manufacturer equivalence with expanded approval certifications (CE, cUL, UL1077, UL1500). TE Connectivity W28 series parts provide alternative sourcing with active inventory status.

Frequently Asked Questions (FAQ)

Q: Can QMB-103-00ENN-3BA directly replace QMB-102-00ENN-3BA?

A: Yes. Both parts share identical electrical ratings (10A, 250V AC, 32V DC), thermal breaker type, push-to-reset actuation, single-pole configuration, panel mount installation, and ROHS3 compliance. The QMB-103-00ENN-3BA is the active successor model.

Q: What is the difference between Qualtek QLB and QMB series substitutes?

A: Both series maintain the required 10A, 250V AC, 32V DC specifications and thermal breaker characteristics. The QLB series (QLB-103-00DNN-3BA, QLB-103-11B3N-3BA) and QMB series (QMB-103-11C3N-3BA) differ in internal design variants indicated by their part number suffixes, but all are electrically and mechanically equivalent for this application.

Q: Are Carling Technologies CLB-103-11B3A-B-A and CMB-103-11C3N-B-A suitable replacements?

A: Yes. Both Carling parts meet all electrical and mechanical requirements. They carry additional approval certifications (CE, cUL, UL1077, UL1500) beyond the original TUV approval and maintain ROHS3 compliance.

Q: What is the difference between TE Connectivity W28-XQ1A-10, W28-XQ1B-10, and W28-XT1A-10?

A: All three maintain the required 10A, 250V AC, 32V DC specifications and thermal breaker configuration. W28-XQ1A-10 and W28-XQ1B-10 are ROHS3 compliant. W28-XT1A-10 is RoHS non-compliant and should be selected only when RoHS compliance is not a requirement.

Q: Can I use any of these substitutes interchangeably in my design?

A: All listed substitutes share identical electrical ratings, breaker type, actuation method, and mounting configuration. Selection should be based on compliance requirements (ROHS3 status), approval certifications needed for your application, and manufacturer availability.

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