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TS-709-5 Thermal Circuit Breaker Equivalent & Substitute Parts
Part Overview
The TS-709-5 is a thermal circuit breaker manufactured by SCHURTER Inc., rated for 5A at 250V AC / 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 design implementations. The TS-709-5 series breaker provides single-pole thermal protection suitable for industrial control and power distribution applications requiring CSA C22.2 and UL1077 compliance.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | TS-709-5 |
| Manufacturer | SCHURTER Inc. |
| Series | TS |
| Current Rating | 5A |
| Voltage Rating - AC | 250V |
| Voltage Rating - DC | 50V |
| Breaker Type | Thermal |
| Actuator Type | Push to Reset |
| Mounting Type | Panel Mount |
| Number of Poles | 1 |
| Product Status | Obsolete |
| Approval Agencies | CSA C22.2, UL1077 |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution eligibility for the TS-709-5 is determined by the following critical parameters:
Primary Matching Criteria:
- Current Rating: 5A (exact match required)
- Breaker Type: Thermal (exact match required)
- Actuator Type: Push to Reset (exact match required)
- Mounting Type: Panel Mount (exact match required)
- Number of Poles: 1 (exact match required)
Voltage Compatibility Criteria:
- AC Voltage: 250V minimum required
- DC Voltage: 50V minimum required
Compliance Criteria:
- Approval agencies must include UL1077 as minimum standard
- RoHS3 compliance required for new designs
Substitute parts are grouped into two categories: parametric equivalents (identical electrical and mechanical specifications) and similar alternatives (matching core function with acceptable voltage derating).
Parameter Comparison
| Part Number | Manufacturer | Current (A) | AC Voltage | DC Voltage | Breaker Type | Actuator | Mounting | Poles | Status | Approvals |
|---|---|---|---|---|---|---|---|---|---|---|
| TS-709-5 | SCHURTER Inc. | 5 | 250V | 50V | Thermal | Push to Reset | Panel Mount | 1 | Obsolete | CSA C22.2, UL1077 |
| 4404.0025 | SCHURTER Inc. | 5 | 240V | 48V | Thermal | Push to Reset | Panel Mount | 1 | Active | CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077 |
| CMB-053-11CNN-B-A | Carling Technologies | 5 | 250V | 32V | Thermal | Push to Reset | Panel Mount | 1 | Active | CE, cUL, TUV, UL1077, UL1500 |
| CMB-053-11DNN-B-A | Carling Technologies | 5 | 250V | 32V | Thermal | Push to Reset | Panel Mount | 1 | Active | CE, cUL, TUV, UL1077, UL1500 |
| 1140-E211-P1M1-5A | E-T-A | 5 | 250V | 50V | Thermal | Push to Reset | Panel Mount | 1 | Active | CSA C22.2 No 235, IEC 60934, UL1077 |
| 1140-G111-P1M1-5A | E-T-A | 5 | 250V | 50V | Thermal | Push to Reset | Panel Mount | 1 | Active | CSA C22.2 No 235, IEC 60934, UL1077 |
| 1140-G151-P7M1-5A | E-T-A | 5 | 250V | 50V | Thermal | Push to Reset | Panel Mount | 1 | Active | CSA C22.2 No 235, IEC 60934, UL1077 |
| 127-P10-H-KF-050022-5A | E-T-A | 5 | 250V | 50V | Thermal | Push to Reset | Panel Mount | 1 | Active | CSA C22.2 No 235, GB 17701, IEC 60934, UL1077 |
| 127-P10-H-KF-5A | E-T-A | 5 | 250V | 50V | Thermal | Push to Reset | Panel Mount | 1 | Active | CSA C22.2 No 235, GB 17701, IEC 60934, UL1077 |
| 127-P10-H-KF-D91-5A | E-T-A | 5 | 250V | 50V | Thermal | Push to Reset | Panel Mount | 1 | Active | CSA C22.2 No 235, GB 17701, IEC 60934, UL1077 |
| 1410-G110-P2F1-S01-5A | E-T-A | 5 | 250V | 50V | Thermal | Push to Reset | Panel Mount | 1 | Active | CSA C22.2 No 235, IEC 60934, UL1077 |
Engineering Selection Recommendations
Parametric Equivalents (Direct Replacement): The E-T-A 1140 series (1140-E211-P1M1-5A, 1140-G111-P1M1-5A, 1140-G151-P7M1-5A) and 127 series (127-P10-H-KF-050022-5A, 127-P10-H-KF-5A, 127-P10-H-KF-D91-5A) and 1410-G110-P2F1-S01-5A provide identical electrical specifications (5A, 250V AC, 50V DC) with active product status. These parts carry CSA C22.2 No 235, IEC 60934, and UL1077 certifications, meeting or exceeding the original TS-709-5 compliance requirements. E-T-A parts are preferred for direct substitution due to specification matching and active manufacturing status.
Voltage-Derated Alternatives: The SCHURTER 4404.0025 operates at 240V AC / 48V DC, representing a minor voltage derating from the original 250V AC / 50V DC specification. This part maintains 5A thermal protection with identical mechanical form factor and push-to-reset actuation. The 4404.0025 is suitable for applications where the lower voltage ratings are acceptable within system design margins.
Cross-Manufacturer Alternatives: Carling Technologies CMB-053-11CNN-B-A and CMB-053-11DNN-B-A provide 5A thermal protection at 250V AC with reduced DC voltage rating (32V). These parts carry expanded certifications including CE, cUL, TUV, UL1077, and UL1500. DC voltage derating to 32V requires system-level evaluation before implementation.
Active Product Status Priority: All recommended substitutes maintain active manufacturing status, ensuring long-term availability and supply chain continuity compared to the obsolete TS-709-5.
Frequently Asked Questions (FAQ)
Q: Can I use the SCHURTER 4404.0025 as a direct replacement for TS-709-5? A: The 4404.0025 is mechanically and functionally compatible but operates at reduced voltage ratings (240V AC / 48V DC versus 250V AC / 50V DC). Substitution is acceptable only if your application operates within these lower voltage specifications.
Q: What is the difference between E-T-A 1140 and 127 series breakers? A: Both series provide identical electrical specifications (5A, 250V AC, 50V DC) and certifications. The difference lies in mechanical packaging and mounting interface details. Verify mechanical compatibility with your panel mount configuration before selection.
Q: Are Carling Technologies CMB-053 breakers suitable replacements? A: CMB-053-11CNN-B-A and CMB-053-11DNN-B-A match the 5A current rating and 250V AC specification but operate at 32V DC maximum. These are suitable only if your DC voltage requirement does not exceed 32V. Both carry UL1077 certification required for this application.
Q: Why is the TS-709-5 listed as obsolete? A: Obsolete status indicates SCHURTER Inc. has discontinued manufacturing. Active alternatives from E-T-A and Carling Technologies provide equivalent functionality with ongoing production support.
Q: Do all substitute parts have the same approval certifications? A: No. The original TS-709-5 requires CSA C22.2 and UL1077 minimum. All recommended E-T-A substitutes meet or exceed this requirement. Carling Technologies parts add CE, cUL, and TUV certifications. Verify your application's specific certification requirements before final selection.
Q: What packaging options are available for substitute parts? A: E-T-A parts are supplied in bulk packaging. SCHURTER 4404.0025 is supplied in box packaging. Carling Technologies CMB-053 series is supplied in bulk packaging. Confirm packaging requirements with your procurement process.
Q: Can I mix different substitute part numbers in the same system? A: All recommended substitutes are mechanically and electrically compatible for panel mount installation. However, maintaining consistent part numbers within a system simplifies maintenance and spare parts inventory management.
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