CMB-153-11C3N-B-A Equivalent & Substitute Parts

Part Overview

The CMB-153-11C3N-B-A is a thermal circuit breaker manufactured by Carling Technologies, rated for 15A at 250V AC and 32V DC. This single-pole, panel-mount breaker features push-to-reset actuation and is certified to CE, cUL, TUV, UL1077, and UL1500 standards. The part maintains active product status with 1153 units in current inventory. Equivalent substitute parts are identified based on matching electrical ratings, mechanical configuration, and functional specifications to ensure direct interchangeability in panel-mount applications.

Key Parameters

Parameter	Value
Breaker Type	Thermal
Current Rating	15A
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

Substitute parts for the CMB-153-11C3N-B-A are qualified based on the following criteria:

Electrical Parameters (Required Match):

Current Rating: 15A
Voltage Rating - AC: 250V
Voltage Rating - DC: 32V

Mechanical Parameters (Required Match):

Breaker Type: Thermal
Actuator Type: Push to Reset
Mounting Type: Panel Mount
Number of Poles: 1

Compliance Parameters (Considered):

RoHS3 Compliance
Regulatory Certifications

All identified substitutes meet these core electrical and mechanical requirements, ensuring functional equivalence in panel-mount circuit protection applications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Current Rating	Voltage AC	Voltage DC	Breaker Type	Actuator Type	Mounting Type	Poles	Product Status	RoHS Status	Inventory (Pcs)
CMB-153-11C3N-B-A	Carling Technologies	15A	250V	32V	Thermal	Push to Reset	Panel Mount	1	Active	ROHS3 Compliant	1153
QLB-153-00DNN-3BA	Qualtek	15A	250V	32V	Thermal	Push to Reset	Panel Mount	1	Active	ROHS3 Compliant	1462
QMB-152-11C3N-3BA	Qualtek	15A	250V	32V	Thermal	Push to Reset	Panel Mount	1	Discontinued at DiGi Electronics	ROHS3 Compliant	6139
QMB-153-11C3N-3BA	Qualtek	15A	250V	32V	Thermal	Push to Reset	Panel Mount	1	Active	ROHS3 Compliant	3827
W28-XQ1A-15	TE Connectivity Potter & Brumfield Relays	15A	250V	32V	Thermal	Push to Reset	Panel Mount	1	Active	ROHS3 Compliant	2089
W28-XQ1B-15	TE Connectivity Potter & Brumfield Relays	15A	250V	32V	Thermal	Push to Reset	Panel Mount	1	Active	ROHS3 Compliant	1202
W28-XT1A-15	TE Connectivity Potter & Brumfield Relays	15A	250V	32V	Thermal	Push to Reset	Panel Mount	1	Active	ROHS3 Compliant	5354
W28-XTBB-15	TE Connectivity Potter & Brumfield Relays	15A	250V	32V	Thermal	Push to Reset	Panel Mount	1	Active	ROHS3 Compliant	1672

Engineering Selection Recommendations

Primary Substitutes (Active Status):

QLB-153-00DNN-3BA, QMB-153-11C3N-3BA, W28-XQ1A-15, W28-XQ1B-15, W28-XT1A-15, and W28-XTBB-15 are all active products meeting all electrical and mechanical parameters. Selection among these options depends on supply chain availability and inventory levels. W28-XT1A-15 offers the highest current inventory at 5354 units.

Secondary Substitute (Discontinued Status):

QMB-152-11C3N-3BA is discontinued at DiGi Electronics but maintains 6139 units in inventory. This part meets all electrical and mechanical requirements but should be selected only when active alternatives are unavailable, as future procurement may be limited.

Compliance Considerations:

All substitutes are ROHS3 compliant. The CMB-153-11C3N-B-A carries CE, cUL, TUV, UL1077, and UL1500 certifications. Qualtek substitutes carry TUV certification. TE Connectivity substitutes do not list specific approval agencies in provided data. Verify certification requirements for your specific application before final selection.

Frequently Asked Questions (FAQ)

Q: What makes these parts electrically equivalent to the CMB-153-11C3N-B-A?

A: All substitute parts share identical electrical ratings: 15A current capacity, 250V AC, and 32V DC voltage ratings. They function as thermal circuit breakers with push-to-reset actuation, ensuring equivalent protection characteristics in the same voltage and current range.

Q: Are all substitutes mechanically compatible with the original part?

A: Yes. All substitutes are single-pole thermal breakers with push-to-reset actuation and panel-mount configuration. They are designed for direct replacement in applications requiring these specifications.

Q: Why is QMB-152-11C3N-3BA listed as discontinued?

A: QMB-152-11C3N-3BA is discontinued at DiGi Electronics, meaning it is no longer actively distributed through that channel. However, 6139 units remain in current inventory. This part meets all electrical and mechanical requirements but should be considered a secondary option due to limited future availability.

Q: Do all substitutes carry the same certifications as the CMB-153-11C3N-B-A?

A: No. The CMB-153-11C3N-B-A carries CE, cUL, TUV, UL1077, and UL1500 certifications. Qualtek substitutes carry TUV certification. TE Connectivity substitutes do not list specific approval agencies in the provided specifications. Verify that the selected substitute meets your application's certification requirements.

Q: Which substitute offers the best inventory availability?

A: W28-XT1A-15 offers the highest inventory level at 5354 units, followed by QMB-152-11C3N-3BA at 6139 units. For active products, W28-XT1A-15 provides the best availability.

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

A: Yes, provided your application does not have specific certification or approval agency requirements beyond ROHS3 compliance. All substitutes meet the core electrical and mechanical parameters of the CMB-153-11C3N-B-A. Verify certification requirements with your design specifications before implementation.

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