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CMB-153-11DNN-B-A Equivalent & Substitute Parts
Part Overview
The CMB-153-11DNN-B-A is a thermal circuit breaker manufactured by Carling Technologies, rated for 15A at 250V AC and 32V DC with push-to-reset panel mount actuation. This single-pole breaker is designed for overcurrent protection in industrial and commercial applications and maintains Active product status with full compliance to CE, cUL, TUV, UL1077, and UL1500 standards.
Substitute parts are necessary when the primary part experiences extended lead times, inventory constraints, or when design flexibility permits selection from qualified alternative manufacturers. All substitute parts listed maintain electrical and mechanical compatibility within the specified parameter ranges.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Current Rating | 15A |
| Voltage Rating - AC | 250V |
| Voltage Rating - DC | 32V |
| Breaker Type | Thermal |
| Mounting Type | Panel Mount |
| Actuator Type | Push to Reset |
| Number of Poles | 1 |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the CMB-153-11DNN-B-A is determined by strict equivalence across the following critical parameters:
Mandatory Matching Parameters:
- Current Rating: 15A
- Voltage Rating - AC: 250V
- Breaker Type: Thermal
- Mounting Type: Panel Mount
- Actuator Type: Push to Reset
- Number of Poles: 1
- RoHS Compliance: ROHS3 Compliant
Allowable Variance:
- Voltage Rating - DC: The main part specifies 32V DC. Substitute parts rated at 50V DC are acceptable as this represents a higher voltage capability and maintains backward compatibility with the 32V DC requirement.
All substitute parts listed are manufactured by OptiFuse under the CBW57 series and satisfy these equivalence criteria. Each substitute maintains Active product status and holds appropriate regulatory approvals.
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Current Rating (A) | Voltage AC (V) | Voltage DC (V) | Breaker Type | Mounting Type | Actuator Type | Poles | RoHS Status | Inventory (Pcs) |
|---|---|---|---|---|---|---|---|---|---|---|
| CMB-153-11DNN-B-A | Carling Technologies | 15 | 250 | 32 | Thermal | Panel Mount | Push to Reset | 1 | ROHS3 Compliant | 825 |
| CBW57-EJ-15A | OptiFuse | 15 | 250 | 50 | Thermal | Panel Mount | Push to Reset | 1 | ROHS3 Compliant | 1399 |
| CBW57-EL4-15A | OptiFuse | 15 | 250 | 50 | Thermal | Panel Mount | Push to Reset | 1 | ROHS3 Compliant | 1220 |
| CBW57-ES-15A | OptiFuse | 15 | 250 | 50 | Thermal | Panel Mount | Push to Reset | 1 | ROHS3 Compliant | 3521 |
| CBW57-ES-15A-5X | OptiFuse | 15 | 250 | 50 | Thermal | Panel Mount | Push to Reset | 1 | ROHS3 Compliant | 1074 |
| CBW57-GS-15A-WB | OptiFuse | 15 | 250 | 50 | Thermal | Panel Mount | Push to Reset | 1 | ROHS3 Compliant | 1003 |
| CBW57-HB-15A-P | OptiFuse | 15 | 250 | 50 | Thermal | Panel Mount | Push to Reset | 1 | ROHS3 Compliant | 8822 |
| CBW57-HS-15A-5X | OptiFuse | 15 | 250 | 50 | Thermal | Panel Mount | Push to Reset | 1 | ROHS3 Compliant | 1831 |
| CBW57-PB-15A | OptiFuse | 15 | 250 | 50 | Thermal | Panel Mount | Push to Reset | 1 | ROHS3 Compliant | 827 |
| CBW57-PB-15A-5X | OptiFuse | 15 | 250 | 50 | Thermal | Panel Mount | Push to Reset | 1 | ROHS3 Compliant | 1862 |
| CBW57-PB-15A-WX | OptiFuse | 15 | 250 | 50 | Thermal | Panel Mount | Push to Reset | 1 | ROHS3 Compliant | 936 |
Engineering Selection Recommendations
All listed substitute parts are qualified equivalents for the CMB-153-11DNN-B-A based on electrical and mechanical parameter alignment. Selection among the OptiFuse CBW57 series alternatives should be based on the following factors:
Regulatory Compliance: All substitute parts hold Active product status and maintain ROHS3 compliance. The OptiFuse CBW57 series carries cURus, IP 40, SAE J1171, UL 1077, and UL 1500 certifications, which provide equivalent regulatory coverage to the original part's CE, cUL, TUV, UL1077, and UL1500 approvals.
Inventory Availability: CBW57-HB-15A-P offers the highest inventory level at 8,822 pieces, followed by CBW57-ES-15A at 3,521 pieces. These options provide superior supply chain flexibility for high-volume applications.
DC Voltage Rating: All substitute parts are rated for 50V DC, which exceeds the original 32V DC specification. This higher rating ensures compatibility with the original application while providing additional design margin for future voltage requirement changes.
Moisture Sensitivity: OptiFuse CBW57 series parts specify MSL 1 (Unlimited), indicating no moisture sensitivity constraints during storage and handling.
Frequently Asked Questions (FAQ)
Q: Can CBW57 series parts directly replace the CMB-153-11DNN-B-A in existing designs?
A: Yes. All CBW57 substitute parts match the critical electrical parameters (15A, 250V AC, thermal operation, push-to-reset actuation) and mechanical specifications (panel mount, single-pole configuration). The 50V DC rating of the CBW57 series exceeds the original 32V DC requirement, ensuring full backward compatibility.
Q: What is the significance of the different CBW57 part number suffixes (EJ, EL4, ES, GS, HB, HS, PB, etc.)?
A: The suffixes denote internal design variations and connector configurations specific to OptiFuse manufacturing. All variants listed maintain identical electrical and mechanical parameters relevant to substitution. The suffix differences do not affect functional equivalence for the specified 15A, 250V AC, 32V DC application.
Q: Are there any compliance or certification differences between the original Carling Technologies part and the OptiFuse substitutes?
A: Both manufacturers' parts hold equivalent regulatory approvals. The original part carries CE, cUL, TUV, UL1077, and UL1500 certifications. OptiFuse CBW57 parts carry cURus, IP 40, SAE J1171, UL 1077, and UL 1500 certifications. Both meet the same functional safety and performance standards for thermal circuit breaker applications.
Q: What does the "-5X" suffix in some part numbers indicate?
A: The "-5X" suffix represents a packaging or configuration variant within the CBW57 series. All "-5X" variants maintain identical electrical specifications and are functionally equivalent to their non-suffixed counterparts for substitution purposes.
Q: Is the higher 50V DC rating of the CBW57 series a concern for 32V DC applications?
A: No. A higher voltage rating provides additional design margin and does not compromise performance in lower-voltage applications. The 50V DC rating ensures the part operates safely across the full range from 0V to 50V DC, which includes the original 32V DC requirement.
Q: Which substitute part offers the best inventory availability?
A: CBW57-HB-15A-P provides the highest inventory level at 8,822 pieces, making it the optimal choice for applications requiring immediate availability or high-volume procurement.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All listed OptiFuse CBW57 series substitutes are ROHS3 compliant, matching the original CMB-153-11DNN-B-A compliance status.
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