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CMB-053-11CNN-W-A/05 Equivalent & Substitute Parts
Part Overview
The CMB-053-11CNN-W-A/05 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 part is RoHS3 compliant and REACH unaffected. Substitute parts are identified when equivalent electrical and mechanical parameters are required for component replacement, design flexibility, or supply chain continuity.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| 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 |
| RoHS Status | RoHS3 Compliant |
Substitute Part Grouping Explanation
Substitute parts for the CMB-053-11CNN-W-A/05 are qualified based on matching the following critical parameters:
Electrical Parameters:
- Current Rating: 5A
- Voltage Rating - AC: 250V
- Voltage Rating - DC: 32V or higher (50V DC substitutes are acceptable as they exceed the minimum requirement)
Mechanical Parameters:
- Breaker Type: Thermal
- Mounting Type: Panel Mount
- Actuator Type: Push to Reset
- Number of Poles: 1
- Illumination: None
Compliance Parameters:
- RoHS3 Compliant
- Active product status
All substitute parts listed are manufactured by OptiFuse under the CBW57 series. These parts maintain identical AC voltage ratings, current ratings, and mechanical form factors. The DC voltage rating of 50V on substitute parts exceeds the 32V DC specification of the main part, providing enhanced capability within the same physical and electrical interface requirements.
Parameter Comparison
| Parameter | CMB-053-11CNN-W-A/05 (Carling) | CBW57-EJ-5A (OptiFuse) | CBW57-EL4-5A (OptiFuse) | CBW57-ES-5A (OptiFuse) | CBW57-PF-5A-5X (OptiFuse) | CBW57-PL-5A-5X (OptiFuse) | CBW57-PS-5A (OptiFuse) | CBW57-PS-5A-1X (OptiFuse) | CBW57-PS-5A-5X (OptiFuse) | CBW57-PS-5A-W (OptiFuse) |
|---|---|---|---|---|---|---|---|---|---|---|
| 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 |
| RoHS Status | RoHS3 Compliant | RoHS3 Compliant | RoHS3 Compliant | RoHS3 Compliant | RoHS3 Compliant | RoHS3 Compliant | RoHS3 Compliant | RoHS3 Compliant | RoHS3 Compliant | RoHS3 Compliant |
| Product Status | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active |
Engineering Selection Recommendations
All listed OptiFuse CBW57 series parts are direct functional equivalents to the CMB-053-11CNN-W-A/05. Selection among substitute parts should be based on the following factors:
Compliance and Certification: All substitute parts maintain active product status and RoHS3 compliance. OptiFuse parts carry cURus, IP 40, SAE J1171, UL 1077, and UL 1500 certifications, which overlap with the Carling part's UL1077 and UL1500 approvals. The Carling part includes CE and TUV certifications; verification of OptiFuse certifications against specific application requirements is necessary for regulated markets.
Electrical Compatibility: The 50V DC rating on all OptiFuse substitutes exceeds the 32V DC requirement of the main part. This provides enhanced DC voltage capability without compromising AC performance. All parts maintain identical 5A current rating and 250V AC voltage rating.
Inventory and Availability: OptiFuse CBW57 series parts show higher inventory levels across all variants, ranging from 798 to 5629 pieces in stock, compared to 903 pieces for the Carling CMB-053-11CNN-W-A/05. The CBW57-ES-5A variant offers the highest inventory availability at 5629 pieces.
Packaging Variants: OptiFuse CBW57 parts are available in multiple packaging configurations denoted by suffix codes (EJ, EL4, ES, PF, PL, PS, PS-1X, PS-5X, PS-W). These variants address different packaging and reel specifications without affecting electrical or mechanical performance.
Frequently Asked Questions (FAQ)
Q: Can OptiFuse CBW57 series parts directly replace the Carling CMB-053-11CNN-W-A/05?
A: Yes. All listed OptiFuse CBW57 variants match the critical electrical parameters (5A, 250V AC) and mechanical specifications (thermal, panel mount, push-to-reset, single-pole, non-illuminated). The 50V DC rating on OptiFuse parts exceeds the 32V DC specification, providing enhanced capability.
Q: What is the significance of the different OptiFuse part number suffixes (EJ, EL4, ES, PF, PL, PS, PS-1X, PS-5X, PS-W)?
A: The suffixes denote packaging and reel configuration variants. All variants maintain identical electrical and mechanical specifications. Selection should be based on packaging requirements for your assembly process.
Q: Are there any certification differences between the Carling and OptiFuse parts?
A: The Carling CMB-053-11CNN-W-A/05 carries CE, cUL, TUV, UL1077, and UL1500 approvals. OptiFuse CBW57 parts carry cURus, IP 40, SAE J1171, UL 1077, and UL 1500 certifications. Both share UL1077 and UL1500 compliance. Application-specific certification requirements should be verified before substitution.
Q: Why do OptiFuse parts have a higher DC voltage rating (50V) than the Carling part (32V)?
A: The 50V DC rating represents the maximum DC voltage capability of the OptiFuse design. This exceeds the 32V DC requirement and does not affect compatibility with applications rated at 32V DC or lower. The higher rating provides design margin and flexibility for future applications.
Q: What is the Moisture Sensitivity Level (MSL) rating on OptiFuse parts?
A: OptiFuse CBW57 parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling. This simplifies supply chain management compared to moisture-sensitive components.
Q: Are all substitute parts RoHS3 compliant?
A: Yes. All listed OptiFuse CBW57 variants are RoHS3 compliant and REACH unaffected, matching the environmental compliance profile of the Carling CMB-053-11CNN-W-A/05.
Q: Which OptiFuse variant should be selected for highest inventory availability?
A: The CBW57-ES-5A offers the highest inventory level at 5629 pieces in stock, followed by CBW57-PS-5A at 2137 pieces. Both are suitable for immediate procurement needs.
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