Request Quote
(Ships tomorrow)
TS-701-HT-20 Circuit Breaker Thermal 20A 250VAC 50VDC Equivalent & Substitute Parts
Part Overview
The TS-701-HT-20 is a thermal circuit breaker manufactured by SCHURTER Inc., rated for 20A at 250V AC and 50V DC with push-to-reset panel mount actuation. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new designs. The breaker is designed for single-pole thermal protection applications requiring CSA C22.2 and UL1077 compliance.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | TS-701-HT-20 |
| Manufacturer | SCHURTER Inc. |
| Series | TS |
| Breaker Type | Thermal |
| Current Rating | 20A |
| Voltage Rating - AC | 250V |
| Voltage Rating - DC | 50V |
| Mounting Type | Panel Mount |
| Actuator Type | Push to Reset |
| Number of Poles | 1 |
| Product Status | Obsolete |
| Approval Agencies | CSA C22.2, UL1077 |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitute parts for the TS-701-HT-20 are categorized based on strict electrical and mechanical parameter alignment:
Parametric Equivalents (Full Compatibility): Parts matching all critical parameters—20A current rating, 250V AC / 50V DC voltage ratings, single-pole thermal operation, push-to-reset actuation, and panel mount configuration. These parts are sourced from E-T-A and include the 127-P10-H-KF-20A, 127-P10-H-KF-D91-20A, 127-P11-H-KF-20A, 157-K10-KF-20A, 2-5000-K10-20A, 2-5000-K10-H-20A, and 2-5000-P10-20A series.
Similar Substitutes (Voltage Variance): Parts from Carling Technologies (CLB-203-11ANN-B-A and CLB-203-11ANN-R-A) maintain 20A current rating, 250V AC voltage rating, single-pole thermal operation, and push-to-reset actuation. The DC voltage rating differs at 32V instead of 50V, which may be acceptable in applications not requiring the full 50V DC specification.
Critical Parameters for Substitution:
- Current Rating: 20A (mandatory)
- Voltage Rating - AC: 250V (mandatory)
- Breaker Type: Thermal (mandatory)
- Mounting Type: Panel Mount (mandatory)
- Actuator Type: Push to Reset (mandatory)
- Number of Poles: 1 (mandatory)
- Voltage Rating - DC: 50V (preferred for full equivalence; 32V acceptable in limited applications)
Parameter Comparison
| Manufacturer Part Number | Manufacturer | Current Rating (A) | Voltage AC (V) | Voltage DC (V) | Breaker Type | Mounting Type | Actuator Type | Poles | Product Status | Approval Agencies |
|---|---|---|---|---|---|---|---|---|---|---|
| TS-701-HT-20 | SCHURTER Inc. | 20 | 250 | 50 | Thermal | Panel Mount | Push to Reset | 1 | Obsolete | CSA C22.2, UL1077 |
| 127-P10-H-KF-20A | E-T-A | 20 | 250 | 50 | Thermal | Panel Mount | Push to Reset | 1 | Active | CSA C22.2 No 235, GB 17701, IEC 60934, UL1077 |
| 127-P10-H-KF-050022-20A | E-T-A | 20 | 250 | 50 | Thermal | Panel Mount | Push to Reset | 1 | Active | CSA C22.2 No 235, GB 17701, IEC 60934, UL1077 |
| 127-P10-H-KF-D91-20A | E-T-A | 20 | 250 | 50 | Thermal | Panel Mount | Push to Reset | 1 | Active | CSA C22.2 No 235, GB 17701, IEC 60934, UL1077 |
| 127-P11-H-KF-20A | E-T-A | 20 | 250 | 50 | Thermal | Panel Mount | Push to Reset | 1 | Active | CSA C22.2 No 235, GB 17701, IEC 60934, UL1077 |
| 157-K10-KF-20A | E-T-A | 20 | 250 | 50 | Thermal | Panel Mount | Push to Reset | 1 | Active | CSA C22.2 No 235, GB 17701, IEC 60934, UL1077 |
| 2-5000-K10-20A | E-T-A | 20 | 250 | 50 | Thermal | Panel Mount | Push to Reset | 1 | Active | CSA C22.2 No 235, GB 17701, IEC 60934, UL1077 |
| 2-5000-K10-H-20A | E-T-A | 20 | 250 | 50 | Thermal | Panel Mount | Push to Reset | 1 | Active | CSA C22.2 No 235, GB 17701, IEC 60934, UL1077 |
| 2-5000-P10-20A | E-T-A | 20 | 250 | 50 | Thermal | Panel Mount | Push to Reset | 1 | Active | CSA C22.2 No 235, GB 17701, IEC 60934, UL1077 |
| CLB-203-11ANN-B-A | Carling Technologies | 20 | 250 | 32 | Thermal | Panel Mount | Push to Reset | 1 | Active | CE, cUL, TUV, UL1077, UL1500 |
| CLB-203-11ANN-R-A | Carling Technologies | 20 | 250 | 32 | Thermal | Panel Mount | Push to Reset | 1 | Active | CE, cUL, TUV, UL1077, UL1500 |
Engineering Selection Recommendations
Primary Selection (Full Parametric Equivalence): E-T-A parts from the 127 and 2-5000 series provide complete electrical and mechanical equivalence to the TS-701-HT-20. All E-T-A substitutes are active products with expanded regulatory approvals including CSA C22.2 No 235, GB 17701, and IEC 60934 in addition to UL1077. These parts are ROHS3 compliant and REACH unaffected, matching the original part's compliance profile. Inventory availability ranges from 656 to 1134 units across the E-T-A lineup.
Secondary Selection (Voltage Variance): Carling Technologies CLB-203-11ANN-B-A and CLB-203-11ANN-R-A maintain full current and AC voltage compatibility but operate at 32V DC instead of 50V DC. These parts are suitable for applications where the DC voltage requirement does not exceed 32V. Both are active products with CE, cUL, TUV, UL1077, and UL1500 certifications, providing broader regulatory coverage than the original part. Inventory availability is 834 and 849 units respectively.
Compliance Alignment: All substitute parts maintain ROHS3 compliance and REACH unaffected status. E-T-A parts preserve the original CSA C22.2 and UL1077 certifications while adding international standards coverage. Carling Technologies parts expand certification scope to include CE and TUV, suitable for global applications.
Frequently Asked Questions (FAQ)
Q: Can I use a CLB-203-11ANN-B-A or CLB-203-11ANN-R-A as a direct replacement for the TS-701-HT-20?
A: These Carling Technologies parts are compatible if your application does not require DC voltage operation above 32V. The CLB-203 series maintains the 20A current rating, 250V AC voltage rating, thermal breaker type, panel mount configuration, and push-to-reset actuation. If your system operates at the full 50V DC specification of the original TS-701-HT-20, use E-T-A parametric equivalents instead.
Q: What is the difference between the various E-T-A part numbers (127-P10-H-KF-20A, 127-P10-H-KF-D91-20A, 127-P11-H-KF-20A, 157-K10-KF-20A, 2-5000-K10-20A, 2-5000-K10-H-20A, 2-5000-P10-20A)?
A: All listed E-T-A parts are parametric equivalents with identical electrical ratings (20A, 250V AC, 50V DC) and mechanical specifications (thermal, panel mount, push-to-reset, single-pole). The differences in part number designations reflect internal E-T-A series classifications and packaging variations. Selection among these parts depends on availability, packaging requirements (bulk vs. standard), and internal design preferences. All are active products with equivalent regulatory approvals.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All E-T-A and Carling Technologies substitute parts listed are ROHS3 compliant and REACH unaffected, matching the environmental compliance of the original TS-701-HT-20.
Q: Which substitute part has the highest inventory availability?
A: The E-T-A 2-5000-P10-20A offers the highest inventory with 1134 units in stock, followed by 127-P10-H-KF-D91-20A with 911 units.
Q: Do the E-T-A substitutes provide better regulatory coverage than the original part?
A: Yes. E-T-A parts include CSA C22.2 No 235, GB 17701, and IEC 60934 certifications in addition to the original UL1077 and CSA C22.2 approvals, providing expanded international standards compliance suitable for global applications.
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