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CMB-053-11CNN-B-D Equivalent & Substitute Parts
Part Overview
The CMB-053-11CNN-B-D is a thermal circuit breaker manufactured by Carling Technologies, rated for 5A at 250V AC and 32V DC. This single-pole, panel-mount device features push-to-reset actuation and holds active product status with full compliance to CE, cUL, TUV, UL1077, and UL1500 standards. The component is RoHS3 compliant and REACH unaffected. Substitute parts are identified to address inventory availability, supply chain continuity, and equivalent functional performance across compatible electrical and mechanical specifications.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | CMB-053-11CNN-B-D |
| Manufacturer | Carling Technologies |
| Series | CMB |
| Breaker Type | Thermal |
| Current Rating | 5A |
| Voltage Rating - AC | 250V |
| Voltage Rating - DC | 32V |
| Mounting Type | Panel Mount |
| Actuator Type | Push to Reset |
| Number of Poles | 1 |
| Illumination | None |
| Product Status | Active |
| RoHS Status | ROHS3 Compliant |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitute parts for the CMB-053-11CNN-B-D are qualified based on the following critical parameters that determine functional equivalence:
Electrical Parameters:
- Current Rating: 5A (exact match required)
- Voltage Rating - AC: 250V (exact match required)
- Voltage Rating - DC: 50V (OptiFuse CBW57 series rated at 50V DC, which exceeds the 32V DC requirement of the main part)
Mechanical Parameters:
- Breaker Type: Thermal (exact match required)
- Mounting Type: Panel Mount (exact match required)
- Actuator Type: Push to Reset (exact match required)
- Number of Poles: 1 (exact match required)
Compliance Parameters:
- Product Status: Active (all substitutes maintain active status)
- RoHS Status: ROHS3 Compliant (all substitutes comply)
- Approval Agencies: All substitutes carry UL 1077 and UL 1500 certifications, meeting primary regulatory requirements
All OptiFuse CBW57 series variants listed satisfy these substitution criteria. The higher DC voltage rating (50V vs. 32V) on substitute parts provides enhanced capability without compromising compatibility.
Parameter Comparison
| Parameter | CMB-053-11CNN-B-D | CBW57-EJ-5A | CBW57-EL4-5A | CBW57-ES-5A | CBW57-PF-5A-5X | CBW57-PL-5A-5X | CBW57-PS-5A | CBW57-PS-5A-1X | CBW57-PS-5A-5X | CBW57-PS-5A-W |
|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Carling Technologies | OptiFuse | OptiFuse | OptiFuse | OptiFuse | OptiFuse | OptiFuse | OptiFuse | OptiFuse | OptiFuse |
| Series | CMB | CBW57 | CBW57 | CBW57 | CBW57 | CBW57 | CBW57 | CBW57 | CBW57 | CBW57 |
| Breaker Type | Thermal | Thermal | Thermal | Thermal | Thermal | Thermal | Thermal | Thermal | Thermal | Thermal |
| Current Rating (Amps) | 5A | 5A | 5A | 5A | 5A | 5A | 5A | 5A | 5A | 5A |
| Voltage Rating - AC | 250V | 250V | 250V | 250V | 250V | 250V | 250V | 250V | 250V | 250V |
| Voltage Rating - DC | 32V | 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 |
| 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 |
| Number of Poles | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Illumination | None | None | None | None | None | None | None | None | None | None |
| Product Status | 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 |
| Inventory (Pcs) | 843 | 1007 | 1691 | 5629 | 798 | 1056 | 2137 | 1422 | 1554 | 2112 |
Engineering Selection Recommendations
All OptiFuse CBW57 series variants listed are qualified substitutes for the CMB-053-11CNN-B-D based on electrical and mechanical parameter equivalence. Selection among substitute parts should be based on the following factors:
Regulatory Compliance: All substitute parts carry UL 1077 and UL 1500 certifications, meeting the primary regulatory requirements of the original part. OptiFuse variants additionally carry cURus and SAE J1171 approvals, providing expanded compliance coverage.
Product Status: All substitute parts maintain active product status, ensuring continued availability and manufacturer support.
Environmental Compliance: All substitute parts are ROHS3 compliant and REACH unaffected, matching the environmental standards of the original part.
Voltage Capability: OptiFuse CBW57 series parts are rated for 50V DC, exceeding the 32V DC requirement of the CMB-053-11CNN-B-D. This higher rating provides additional operational margin without introducing compatibility issues in applications operating at or below 32V DC.
Inventory Availability: CBW57-ES-5A offers the highest inventory level at 5629 pieces, followed by CBW57-PS-5A at 2137 pieces and CBW57-PS-5A-W at 2112 pieces. Selection based on inventory availability supports supply chain continuity.
Frequently Asked Questions (FAQ)
Q: Can OptiFuse CBW57 series parts directly replace the CMB-053-11CNN-B-D?
A: Yes. All OptiFuse CBW57 variants listed meet the electrical and mechanical requirements for direct substitution. The 5A current rating, 250V AC voltage rating, panel-mount configuration, push-to-reset actuation, and single-pole design are identical across all parts. The higher 50V DC rating on OptiFuse parts provides enhanced capability without compatibility concerns.
Q: What is the significance of the higher DC voltage rating on substitute parts?
A: OptiFuse CBW57 series parts are rated for 50V DC compared to the 32V DC rating of the CMB-053-11CNN-B-D. This higher rating indicates the substitute parts can safely operate in applications requiring up to 50V DC. In applications operating at 32V DC or lower, this difference does not affect performance or compatibility.
Q: Are there differences between the various CBW57 part numbers?
A: All CBW57 variants listed share identical electrical specifications (5A, 250V AC, 50V DC) and mechanical characteristics (thermal breaker, panel mount, push to reset, single pole). Differences in part numbers reflect variations in packaging, connector types, or internal configurations that do not affect the core switching and protection functionality. Selection among variants should be based on specific application requirements and inventory availability.
Q: Do substitute parts carry the same certifications as the original part?
A: OptiFuse CBW57 series parts carry UL 1077 and UL 1500 certifications, matching the primary regulatory approvals of the CMB-053-11CNN-B-D. OptiFuse variants additionally carry cURus and SAE J1171 approvals, providing expanded compliance coverage for specific applications.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All OptiFuse CBW57 variants listed are ROHS3 compliant and REACH unaffected, matching the environmental compliance status of the original part.
Q: Which substitute part offers the best inventory availability?
A: CBW57-ES-5A provides the highest inventory level at 5629 pieces in stock. CBW57-PS-5A and CBW57-PS-5A-W also offer strong availability at 2137 and 2112 pieces respectively.
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