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CLB-103-12CNN-W-H/10 Equivalent & Substitute Parts
Part Overview
The CLB-103-12CNN-W-H/10 is a thermal circuit breaker manufactured by Carling Technologies, rated for 10A 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. Substitute parts are necessary when primary inventory is unavailable, when alternative mounting configurations are required, or when sourcing from secondary manufacturers is preferred while maintaining equivalent electrical and mechanical performance.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | CLB-103-12CNN-W-H/10 |
| Manufacturer | Carling Technologies |
| Series | CLB |
| Breaker Type | Thermal |
| Current Rating | 10A |
| 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 CLB-103-12CNN-W-H/10 are qualified based on the following critical parameters that must match or exceed the original specification:
Matching Parameters (Required for Substitution):
- Current Rating: 10A
- Voltage Rating - AC: 250V
- Mounting Type: Panel Mount
- Breaker Type: Thermal
- Actuator Type: Push to Reset
- Number of Poles: 1
- Illumination: None
Allowable Variance:
- Voltage Rating - DC: The original part is rated 32V DC. Substitute parts rated at 50V DC are acceptable as this represents an increased capability that maintains backward compatibility with the original specification.
All substitute parts listed are from the OptiFuse CBW57 series and maintain identical electrical performance characteristics for AC voltage, current rating, and actuation method. The DC voltage rating increase from 32V to 50V in substitute parts provides enhanced capability without compromising the original application requirements.
Parameter Comparison
| Part Number | Manufacturer | Current Rating (A) | Voltage AC (V) | Voltage DC (V) | Mounting Type | Breaker Type | Actuator Type | Poles | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|
| CLB-103-12CNN-W-H/10 | Carling Technologies | 10 | 250 | 32 | Panel Mount | Thermal | Push to Reset | 1 | Active | ROHS3 Compliant |
| CBW57-EJ-10A | OptiFuse | 10 | 250 | 50 | Panel Mount | Thermal | Push to Reset | 1 | Active | ROHS3 Compliant |
| CBW57-EL4-10A | OptiFuse | 10 | 250 | 50 | Panel Mount | Thermal | Push to Reset | 1 | Active | ROHS3 Compliant |
| CBW57-ES-10A-5H | OptiFuse | 10 | 250 | 50 | Panel Mount | Thermal | Push to Reset | 1 | Active | ROHS3 Compliant |
| CBW57-PB-10A-5X | OptiFuse | 10 | 250 | 50 | Panel Mount | Thermal | Push to Reset | 1 | Active | ROHS3 Compliant |
| CBW57-PB-10A-X | OptiFuse | 10 | 250 | 50 | Panel Mount | Thermal | Push to Reset | 1 | Active | ROHS3 Compliant |
| CBW57-PF-10A-5X | OptiFuse | 10 | 250 | 50 | Panel Mount | Thermal | Push to Reset | 1 | Active | ROHS3 Compliant |
| CBW57-PL-10A-5X | OptiFuse | 10 | 250 | 50 | Panel Mount | Thermal | Push to Reset | 1 | Active | ROHS3 Compliant |
| CBW57-PS-10A | OptiFuse | 10 | 250 | 50 | Panel Mount | Thermal | Push to Reset | 1 | Active | ROHS3 Compliant |
| CBW57-PS-10A-1X | OptiFuse | 10 | 250 | 50 | Panel Mount | Thermal | Push to Reset | 1 | Active | ROHS3 Compliant |
| CBW57-PS-10A-5X | OptiFuse | 10 | 250 | 50 | Panel Mount | Thermal | Push to Reset | 1 | Active | ROHS3 Compliant |
Engineering Selection Recommendations
All listed substitute parts maintain active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment with the original CLB-103-12CNN-W-H/10. The OptiFuse CBW57 series parts carry equivalent or enhanced certifications including cURus, IP 40, SAE J1171, UL 1077, and UL 1500, providing compliance coverage for the original application requirements.
The primary distinction among substitute parts lies in the suffix designations (EJ, EL4, ES, PB, PF, PL, PS variants), which indicate different connector or terminal configurations. Selection among these variants depends on the specific panel interface requirements of the installation. All variants maintain identical electrical performance for the 10A, 250V AC circuit protection function.
The increased DC voltage rating of 50V in OptiFuse substitutes compared to the original 32V specification provides enhanced capability for applications requiring higher DC voltage tolerance, while remaining fully compatible with the original 32V DC requirement.
Frequently Asked Questions (FAQ)
Q: Can CBW57 series parts directly replace the CLB-103-12CNN-W-H/10?
A: Yes. All listed CBW57 variants meet or exceed the electrical specifications of the original part. The 10A current rating, 250V AC voltage rating, panel-mount configuration, thermal breaker type, and push-to-reset actuation are identical. The increased 50V DC rating in CBW57 parts is compatible with applications originally specified for 32V DC.
Q: What do the suffix codes in CBW57 part numbers indicate?
A: The suffix codes (EJ, EL4, ES, PB, PF, PL, PS, and their modifiers like -5X, -1X, -5H) designate different terminal or connector configurations. These variations allow selection based on specific panel interface requirements while maintaining identical electrical performance.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All listed substitute parts carry ROHS3 compliance certification, matching the environmental compliance status of the original CLB-103-12CNN-W-H/10.
Q: What certifications do the substitute parts carry?
A: OptiFuse CBW57 series parts carry cURus, IP 40, SAE J1171, UL 1077, and UL 1500 certifications. These certifications provide equivalent or enhanced coverage compared to the original part's CE, cUL, TUV, UL1077, and UL1500 approvals.
Q: Is the 50V DC rating in substitute parts a limitation compared to the original 32V specification?
A: No. The 50V DC rating represents an increased capability. Applications designed for 32V DC operation remain fully compatible with parts rated for 50V DC, as the higher rating indicates the part can safely operate at higher DC voltages without degradation.
Q: How should I select among the different CBW57 variants?
A: Selection should be based on the terminal or connector configuration required for your specific panel interface. All variants provide identical electrical protection characteristics. Consult your panel design specifications or contact the component supplier to determine which suffix variant matches your installation requirements.
Q: Are substitute parts available in equivalent quantities?
A: Inventory levels vary by variant. CBW57-PS-10A-5X maintains the highest inventory at 5,818 pieces, while other variants range from 701 to 4,730 pieces. Availability should be confirmed with your supplier based on your procurement timeline and volume requirements.
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