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CMB-153-11DNB-B-A Circuit Breaker Equivalent & Substitute Parts
Part Overview
The CMB-153-11DNB-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 holds Active product status with full compliance to CE, cUL, TUV, UL1077, and UL1500 standards. The device is ROHS3 compliant and REACH unaffected. Substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity while maintaining equivalent electrical and mechanical performance.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Breaker Type | Thermal |
| Current Rating | 15A |
| Voltage Rating - AC | 250V |
| Voltage Rating - DC | 32V |
| Mounting Type | Panel Mount |
| Actuator Type | Push to Reset |
| Number of Poles | 1 |
| Illumination | None |
Substitute Part Grouping Explanation
Substitute parts for the CMB-153-11DNB-B-A are qualified based on strict equivalence across the following critical parameters:
Mandatory Matching Parameters:
- Current Rating: 15A
- Voltage Rating - AC: 250V
- Mounting Type: Panel Mount
- Breaker Type: Thermal
- Actuator Type: Push to Reset
- Number of Poles: 1
- Illumination: None
All identified substitute parts are manufactured by OptiFuse under the CBW57 series. These parts maintain identical AC voltage ratings (250V) and current ratings (15A). While substitute parts feature a DC voltage rating of 50V compared to the main part's 32V DC rating, this represents an uprated specification that does not restrict substitution in applications requiring 32V DC operation. All substitute parts share identical mounting configuration, actuation mechanism, and pole count, ensuring direct mechanical and electrical compatibility in panel-mount installations.
Parameter Comparison
| Parameter | CMB-153-11DNB-B-A (Carling) | CBW57-EJ-15A (OptiFuse) | CBW57-EL4-15A (OptiFuse) | CBW57-ES-15A (OptiFuse) | CBW57-ES-15A-5X (OptiFuse) | CBW57-GS-15A-WB (OptiFuse) | CBW57-HB-15A-P (OptiFuse) | CBW57-HS-15A-5X (OptiFuse) | CBW57-PB-15A (OptiFuse) | CBW57-PB-15A-5X (OptiFuse) | CBW57-PB-15A-WX (OptiFuse) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Breaker Type | Thermal | Thermal | Thermal | Thermal | Thermal | Thermal | Thermal | Thermal | Thermal | Thermal | Thermal |
| Current Rating (Amps) | 15A | 15A | 15A | 15A | 15A | 15A | 15A | 15A | 15A | 15A | 15A |
| Voltage Rating - AC | 250V | 250V | 250V | 250V | 250V | 250V | 250V | 250V | 250V | 250V | 250V |
| Voltage Rating - DC | 32V | 50V | 50V | 50V | 50V | 50V | 50V | 50V | 50V | 50V | 50V |
| Mounting Type | Panel Mount | Panel Mount | Panel Mount | Panel Mount | Panel Mount | Panel Mount | Panel Mount | Panel Mount | Panel Mount | Panel Mount | Panel Mount |
| Actuator Type | Push to Reset | Push to Reset | Push to Reset | Push to Reset | Push to Reset | Push to Reset | Push to Reset | Push to Reset | Push to Reset | Push to Reset | Push to Reset |
| Number of Poles | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Illumination | None | None | None | None | None | None | None | None | None | None | None |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| REACH Status | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected | REACH Unaffected |
Engineering Selection Recommendations
All substitute parts listed maintain Active product status and full ROHS3 compliance with REACH unaffected designation, ensuring regulatory alignment with the original CMB-153-11DNB-B-A. The OptiFuse CBW57 series substitutes carry approval certifications including cURus, IP 40, SAE J1171, UL 1077, and UL 1500, providing comprehensive standards coverage for thermal circuit breaker applications.
The primary distinction between the main part and substitutes is the DC voltage rating: the CMB-153-11DNB-B-A is rated for 32V DC, while all CBW57 series substitutes are rated for 50V DC. This uprated DC specification does not restrict substitution in applications operating at or below 32V DC. The higher DC rating of substitute parts provides additional operational margin in DC circuit protection scenarios.
All substitute parts are available in bulk packaging and maintain identical electrical performance across the 15A, 250V AC specification. Selection among substitute variants should be based on inventory availability and specific connector or terminal configurations required by the application.
Frequently Asked Questions (FAQ)
Q: Can CBW57 series parts directly replace the CMB-153-11DNB-B-A in existing installations?
A: Yes. All CBW57 series substitutes share identical mounting type (panel mount), current rating (15A), AC voltage rating (250V), actuation mechanism (push to reset), and pole configuration (single pole). Direct mechanical and electrical substitution is supported in panel-mount circuit protection applications.
Q: Why do substitute parts have a 50V DC rating when the original part is rated for 32V DC?
A: The 50V DC rating on CBW57 series parts represents an uprated specification. This higher rating does not restrict operation in 32V DC applications. The substitute parts are fully compatible with circuits operating at or below 32V DC.
Q: Are all CBW57 variants listed equivalent for substitution purposes?
A: All listed CBW57 variants (CBW57-EJ-15A, CBW57-EL4-15A, CBW57-ES-15A, CBW57-ES-15A-5X, CBW57-GS-15A-WB, CBW57-HB-15A-P, CBW57-HS-15A-5X, CBW57-PB-15A, CBW57-PB-15A-5X, and CBW57-PB-15A-WX) meet the electrical and mechanical substitution criteria. Variant designations reflect connector or terminal configuration differences. Selection should be based on specific terminal requirements and inventory availability.
Q: What compliance standards apply to substitute parts?
A: All CBW57 series substitutes are ROHS3 compliant and REACH unaffected. Approval certifications include cURus, IP 40, SAE J1171, UL 1077, and UL 1500, providing comprehensive standards coverage for thermal circuit breaker applications.
Q: Is there a difference in thermal protection characteristics between the main part and substitutes?
A: All parts in this substitution group are thermal breakers with identical 15A current ratings. Thermal protection characteristics are equivalent across the main part and all listed substitutes.
Q: What packaging options are available for substitute parts?
A: All CBW57 series substitutes are supplied in bulk packaging. Inventory quantities vary by part number, ranging from 827 to 8822 pieces in stock.
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