TS-709-10 Circuit Breaker Thermal 10A 250VAC 50VDC Equivalent & Substitute Parts

Part Overview

The TS-709-10 is a thermal circuit breaker manufactured by SCHURTER Inc., rated for 10A at 250V AC and 50V DC with push-to-reset panel mount actuation. This part is classified as obsolete, making equivalent substitutes necessary for ongoing system maintenance and new designs. The TS-709-10 series breaker provides single-pole thermal protection suitable for industrial control and power distribution applications requiring CSA C22.2 and UL1077 compliance.

Key Parameters

Parameter	Value
Manufacturer Part Number	TS-709-10
Manufacturer	SCHURTER Inc.
Current Rating	10A
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 Agency	CSA C22.2, UL1077
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the TS-709-10 is determined by strict equivalence across the following parameters:

Critical Parameters for Substitution:

Current Rating: 10A (exact match required)
Voltage Rating - AC: 250V (exact match required)
Voltage Rating - DC: 50V (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)

Substitute parts are grouped into two categories:

Parametric Equivalents (Full Specification Match): Parts meeting all critical parameters with identical electrical and mechanical specifications. These parts are direct replacements with no functional or performance differences.

Near-Equivalent Substitutes (Voltage Variance): Parts meeting all critical parameters except voltage ratings, which differ within acceptable industrial operating ranges. The SCHURTER 4404.0022 operates at 240V AC / 48V DC, representing a minor voltage variance suitable for applications with flexible voltage tolerance.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Current Rating (A)	Voltage AC	Voltage DC	Breaker Type	Actuator Type	Mounting Type	Poles	Product Status	Approval Agency
TS-709-10	SCHURTER Inc.	10	250V	50V	Thermal	Push to Reset	Panel Mount	1	Obsolete	CSA C22.2, UL1077
4404.0022	SCHURTER Inc.	10	240V	48V	Thermal	Push to Reset	Panel Mount	1	Active	CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077
CMB-103-11DNN-B-A	Carling Technologies	10	250V	32V	Thermal	Push to Reset	Panel Mount	1	Active	CE, cUL, TUV, UL1077, UL1500
1140-F111-P1M1-10A	E-T-A	10	250V	50V	Thermal	Push to Reset	Panel Mount	1	Active	CSA C22.2 No 235, IEC 60934, UL1077
1140-F114-P1M1-10A	E-T-A	10	250V	50V	Thermal	Push to Reset	Panel Mount	1	Active	CSA C22.2 No 235, IEC 60934, UL1077
1140-G111-P1M1-10A	E-T-A	10	250V	50V	Thermal	Push to Reset	Panel Mount	1	Active	CSA C22.2 No 235, IEC 60934, UL1077
1140-G151-P7M1-10A	E-T-A	10	250V	50V	Thermal	Push to Reset	Panel Mount	1	Active	CSA C22.2 No 235, IEC 60934, UL1077
127-F11-P10-H-KF-10A	E-T-A	10	250V	50V	Thermal	Push to Reset	Panel Mount	1	Active	CSA C22.2 No 235, GB 17701, IEC 60934, UL1077
127-P10-H-KF-050022-10A	E-T-A	10	250V	50V	Thermal	Push to Reset	Panel Mount	1	Active	CSA C22.2 No 235, GB 17701, IEC 60934, UL1077
127-P10-H-KF-10A	E-T-A	10	250V	50V	Thermal	Push to Reset	Panel Mount	1	Active	CSA C22.2 No 235, GB 17701, IEC 60934, UL1077

Engineering Selection Recommendations

Preferred Parametric Equivalents: The E-T-A 1140 series (1140-F111-P1M1-10A, 1140-F114-P1M1-10A, 1140-G111-P1M1-10A, 1140-G151-P7M1-10A) and E-T-A 127 series (127-F11-P10-H-KF-10A, 127-P10-H-KF-050022-10A, 127-P10-H-KF-10A) provide full electrical and mechanical equivalence to the TS-709-10. All are active products with CSA C22.2 No 235, IEC 60934, and UL1077 certifications, ensuring regulatory compliance for industrial applications. These parts are suitable for direct replacement without circuit modification.

Alternative with Voltage Variance: The SCHURTER 4404.0022 operates at 240V AC / 48V DC, representing a 10V AC and 2V DC reduction from the original specification. This part is active and carries expanded certifications including EN 60934 and GB 17701. Selection of this alternative requires confirmation that the application circuit operates within the reduced voltage tolerance.

Carling Technologies CMB-103-11DNN-B-A Consideration: This part matches the 250V AC rating but operates at 32V DC, representing an 18V DC reduction from the original 50V DC specification. This significant voltage variance limits its applicability to applications with explicit DC voltage tolerance below 50V. The part carries UL1077 and UL1500 certifications with additional CE and TUV approvals.

Frequently Asked Questions (FAQ)

Q: Can the E-T-A 1140-F111-P1M1-10A directly replace the TS-709-10?

A: Yes. The 1140-F111-P1M1-10A meets all critical parameters: 10A current rating, 250V AC, 50V DC, thermal breaker type, push-to-reset actuation, panel mount configuration, and single-pole design. It is an active product with appropriate industrial certifications.

Q: What is the difference between the E-T-A 1140 and 127 series substitutes?

A: Both series provide identical electrical specifications (10A, 250V AC, 50V DC) and mechanical compatibility. The difference lies in internal design architecture and certification scope. Both are suitable for direct replacement based on provided parameters.

Q: Is the SCHURTER 4404.0022 a suitable replacement?

A: The 4404.0022 is suitable only for applications where the circuit operates at or below 240V AC and 48V DC. The voltage reduction must be confirmed compatible with the system design. This part is active and carries expanded international certifications.

Q: Why does the Carling Technologies CMB-103-11DNN-B-A have a lower DC voltage rating?

A: The CMB-103-11DNN-B-A is designed for applications requiring 32V DC maximum operation. The 18V DC variance from the original specification represents a significant design difference. This part is suitable only for circuits explicitly rated for 32V DC operation or lower.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All substitute parts listed meet ROHS3 compliance and REACH unaffected status, consistent with the original TS-709-10 environmental classification.

Q: What packaging options are available?

A: The TS-709-10 is supplied in bulk packaging. The SCHURTER 4404.0022 is supplied in box packaging. E-T-A and Carling Technologies substitutes are supplied in bulk packaging. Packaging selection does not affect electrical or mechanical compatibility.

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