Request Quote
(Ships tomorrow)
CLBA-153-NNFNN-B-A Circuit Breaker Equivalent & Substitute Parts
Part Overview
The CLBA-153-NNFNN-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 AC and DC applications and maintains Active product status with full compliance to CE, cUL, TUV, UL1077, and UL1500 standards.
Substitute parts become necessary when the primary part experiences extended lead times, inventory constraints, or when design flexibility permits selection from alternative manufacturers offering equivalent electrical and mechanical specifications. The substitute parts listed below are parametrically equivalent OptiFuse CBW57 series thermal circuit breakers that satisfy the core functional requirements of the CLBA-153-NNFNN-B-A.
Substiute Parts
Key Parameters
| Parameter | CLBA-153-NNFNN-B-A |
|---|---|
| Manufacturer | Carling Technologies |
| Series | CLB |
| 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 |
| Product Status | Active |
| RoHS Status | ROHS3 Compliant |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitution of the CLBA-153-NNFNN-B-A with OptiFuse CBW57 series thermal circuit breakers is based on the following matching parameters:
Electrical Equivalence:
- Current Rating: 15A (identical across all substitutes)
- Voltage Rating - AC: 250V (identical across all substitutes)
- Breaker Type: Thermal (identical across all substitutes)
Mechanical Equivalence:
- Mounting Type: Panel Mount (identical across all substitutes)
- Actuator Type: Push to Reset (identical across all substitutes)
- Number of Poles: 1 (identical across all substitutes)
Regulatory & Compliance:
- RoHS3 Compliant (identical across all substitutes)
- REACH Unaffected (identical across all substitutes)
- Active Product Status (identical across all substitutes)
Note on DC Voltage Rating: The CLBA-153-NNFNN-B-A is rated for 32V DC, while all OptiFuse CBW57 substitutes are rated for 50V DC. The higher DC voltage rating of the substitutes provides additional operational margin and does not restrict their use in 32V DC applications.
Parameter Comparison
| Part Number | Manufacturer | Current Rating (A) | Voltage AC (V) | Voltage DC (V) | Mounting Type | Actuator Type | Poles | Breaker Type | Product Status | RoHS Status |
|---|---|---|---|---|---|---|---|---|---|---|
| CLBA-153-NNFNN-B-A | Carling Technologies | 15 | 250 | 32 | Panel Mount | Push to Reset | 1 | Thermal | Active | ROHS3 Compliant |
| CBW57-EJ-15A | OptiFuse | 15 | 250 | 50 | Panel Mount | Push to Reset | 1 | Thermal | Active | ROHS3 Compliant |
| CBW57-EL4-15A | OptiFuse | 15 | 250 | 50 | Panel Mount | Push to Reset | 1 | Thermal | Active | ROHS3 Compliant |
| CBW57-ES-15A | OptiFuse | 15 | 250 | 50 | Panel Mount | Push to Reset | 1 | Thermal | Active | ROHS3 Compliant |
| CBW57-ES-15A-5X | OptiFuse | 15 | 250 | 50 | Panel Mount | Push to Reset | 1 | Thermal | Active | ROHS3 Compliant |
| CBW57-GS-15A-WB | OptiFuse | 15 | 250 | 50 | Panel Mount | Push to Reset | 1 | Thermal | Active | ROHS3 Compliant |
| CBW57-HB-15A-P | OptiFuse | 15 | 250 | 50 | Panel Mount | Push to Reset | 1 | Thermal | Active | ROHS3 Compliant |
| CBW57-HS-15A-5X | OptiFuse | 15 | 250 | 50 | Panel Mount | Push to Reset | 1 | Thermal | Active | ROHS3 Compliant |
| CBW57-PB-15A-5X | OptiFuse | 15 | 250 | 50 | Panel Mount | Push to Reset | 1 | Thermal | Active | ROHS3 Compliant |
| CBW57-PB-15A-WX | OptiFuse | 15 | 250 | 50 | Panel Mount | Push to Reset | 1 | Thermal | Active | ROHS3 Compliant |
| CBW57-PS-15A | OptiFuse | 15 | 250 | 50 | Panel Mount | Push to Reset | 1 | Thermal | Active | ROHS3 Compliant |
Engineering Selection Recommendations
All listed OptiFuse CBW57 series thermal circuit breakers are direct functional equivalents to the CLBA-153-NNFNN-B-A for 15A panel mount applications at 250V AC. Selection among the substitute parts should be based on the following criteria:
Regulatory Compliance: All substitute parts maintain Active product status and 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 Carling Technologies CLB series.
Inventory Availability: OptiFuse CBW57 variants demonstrate higher inventory levels across multiple part numbers, with CBW57-HB-15A-P offering 8,822 units and CBW57-ES-15A offering 3,521 units in stock, compared to 712 units of the primary CLBA-153-NNFNN-B-A.
DC Voltage Margin: The 50V DC rating of all OptiFuse substitutes exceeds the 32V DC requirement of the original part, providing additional operational margin in DC applications without compromising AC performance.
Moisture Sensitivity: OptiFuse CBW57 parts specify MSL 1 (Unlimited) where documented, indicating no moisture sensitivity constraints during storage and handling.
Frequently Asked Questions (FAQ)
Q: Can OptiFuse CBW57 series breakers directly replace the Carling Technologies CLBA-153-NNFNN-B-A?
A: Yes. All listed OptiFuse CBW57 variants are parametrically equivalent for the critical electrical and mechanical specifications: 15A current rating, 250V AC voltage rating, thermal breaker type, panel mount configuration, push-to-reset actuation, and single-pole design. The higher 50V DC rating of the OptiFuse parts does not restrict their use in 32V DC applications.
Q: What is the significance of the different part number suffixes in the CBW57 series (EJ, EL4, ES, GS, HB, HS, PB, PS)?
A: The suffixes denote internal design variations within the CBW57 series, such as terminal configuration, contact material, or mechanical interface details. All variants listed maintain identical electrical ratings and mechanical mounting specifications required for substitution with the CLBA-153-NNFNN-B-A.
Q: Are there any compliance or certification differences between the Carling Technologies and OptiFuse parts?
A: Both manufacturers' parts are ROHS3 compliant and REACH unaffected. The Carling Technologies CLBA-153-NNFNN-B-A carries CE, cUL, TUV, UL1077, and UL1500 certifications. OptiFuse CBW57 parts carry cURus, IP 40, SAE J1171, UL 1077, and UL 1500 certifications. Both certification sets are appropriate for thermal circuit breaker applications in industrial and commercial equipment.
Q: What packaging options are available for the OptiFuse substitutes?
A: All listed OptiFuse CBW57 substitute parts are supplied in Bulk packaging, consistent with the original CLBA-153-NNFNN-B-A packaging format.
Q: Which OptiFuse CBW57 variant should be selected if inventory is the primary concern?
A: CBW57-HB-15A-P offers the highest inventory level at 8,822 units. CBW57-ES-15A provides the second-highest availability at 3,521 units. Both parts are electrically and mechanically identical to other CBW57 variants and fully equivalent to the CLBA-153-NNFNN-B-A.
Q: Is the 50V DC rating of the OptiFuse parts a limitation in 32V DC applications?
A: No. A higher DC voltage rating indicates the component is rated for operation at higher voltages and provides additional safety margin. The 50V DC rated OptiFuse parts operate safely in 32V DC circuits.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts