TS-709-8 Thermal Circuit Breaker Equivalent & Substitute Parts

Part Overview

The TS-709-8 is a thermal circuit breaker manufactured by SCHURTER Inc., rated for 8A at 250V AC and 50V DC with push-to-reset panel mount actuation. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations. The part is ROHS3 compliant and carries CSA C22.2 and UL1077 approvals.

Substiute Parts

TS-709-8

SCHURTER Inc.In Stock: 1093TS-709-8 Datasheet

Current PartRFQ

4404.0021

SCHURTER Inc.In Stock: 10124404.0021 Datasheet

SimilarRFQ

TS-701-HT-8K

SCHURTER Inc.In Stock: 1126TS-701-HT-8K Datasheet

Parametric EquivalentRFQ

CMB-083-11CNN-B-A

Carling TechnologiesIn Stock: 755CMB-083-11CNN-B-A Datasheet

SimilarRFQ

W57-XB7A4A10-8

TE Connectivity Potter & Brumfield RelaysIn Stock: 1401W57-XB7A4A10-8 Datasheet

SimilarRFQ

1140-G111-P1M1-8A

E-T-AIn Stock: 8701140-G111-P1M1-8A Datasheet

Parametric EquivalentRFQ

1140-G151-P7M1-8A

E-T-AIn Stock: 7591140-G151-P7M1-8A Datasheet

Parametric EquivalentRFQ

127-P10-H-KF-050022-8A

E-T-AIn Stock: 1046127-P10-H-KF-050022-8A Datasheet

Parametric EquivalentRFQ

127-P10-H-KF-8A

E-T-AIn Stock: 1110127-P10-H-KF-8A Datasheet

Parametric EquivalentRFQ

1410-G110-P2F1-S01-8A

E-T-AIn Stock: 9751410-G110-P2F1-S01-8A Datasheet

Parametric EquivalentRFQ

1410-G111-P2F1-S01-385803-8A

E-T-AIn Stock: 7991410-G111-P2F1-S01-385803-8A Datasheet

Parametric EquivalentRFQ

1410-G111-P2F1-S01-8A

E-T-AIn Stock: 7521410-G111-P2F1-S01-8A Datasheet

Parametric EquivalentRFQ

2-5000-P10-H-8A

E-T-AIn Stock: 10872-5000-P10-H-8A Datasheet

Parametric EquivalentRFQ

CTB-B-B-08

Carling TechnologiesIn Stock: 1160CTB-B-B-08 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the TS-709-8 is determined by the following critical parameters: current rating (8A), AC voltage rating (250V), DC voltage rating (50V), breaker type (thermal), mounting configuration (panel mount), and actuator mechanism (push to reset). Parts are grouped into two categories:

Parametric Equivalents maintain identical electrical specifications (8A, 250V AC, 50V DC) and are direct functional replacements. These include TS-701-HT-8K, 1140-G111-P1M1-8A, 1140-G151-P7M1-8A, 127-P10-H-KF-050022-8A, 127-P10-H-KF-8A, 1410-G110-P2F1-S01-8A, and 1410-G111-P2F1-S01-385803-8A.

Similar Substitutes maintain the 8A current rating and 250V AC rating but vary in DC voltage specification or other parameters. These include 4404.0021 (240V AC, 48V DC), CMB-083-11CNN-B-A (250V AC, 32V DC), and W57-XB7A4A10-8 (250V AC, unspecified DC).

Parameter Comparison

Engineering Selection Recommendations

For applications requiring exact electrical parameter matching, the E-T-A 1140 and 127 series parts (1140-G111-P1M1-8A, 1140-G151-P7M1-8A, 127-P10-H-KF-050022-8A, 127-P10-H-KF-8A) and the 1410-G110-P2F1-S01-8A provide parametric equivalence with active product status and comprehensive regulatory approvals including CSA C22.2 No 235, IEC 60934, and UL1077.

The SCHURTER 4404.0021 is an active alternative from the original manufacturer with slightly reduced voltage ratings (240V AC, 48V DC) and expanded approval coverage including EN 60934 and GB 17701. This part is suitable for applications where the lower voltage specifications are acceptable.

The Carling Technologies CMB-083-11CNN-B-A maintains 250V AC rating with reduced DC voltage (32V) and offers active product status with extended regulatory approvals including CE, cUL, and TUV certifications.

The TE Connectivity W57-XB7A4A10-8 provides 250V AC rating with active product status but lacks specified DC voltage information, requiring application-specific validation.

Frequently Asked Questions (FAQ)

Q: Can TS-701-HT-8K directly replace TS-709-8? A: Yes. Both parts share identical electrical specifications (8A, 250V AC, 50V DC), thermal breaker type, panel mount configuration, and push-to-reset actuation. Both are SCHURTER Inc. products within the TS series. TS-701-HT-8K is also obsolete but maintains full parametric equivalence.

Q: What is the difference between parametric equivalents and similar substitutes? A: Parametric equivalents maintain all critical electrical ratings (8A, 250V AC, 50V DC). Similar substitutes maintain the 8A current and 250V AC rating but may differ in DC voltage specification or other parameters. Selection depends on application voltage requirements.

Q: Is 4404.0021 suitable for 50V DC applications? A: No. The 4404.0021 is rated for 48V DC maximum, which is below the TS-709-8 specification of 50V DC. This part is suitable only for applications operating at 48V DC or lower.

Q: What approvals does the TS-709-8 carry? A: CSA C22.2 and UL1077. When selecting substitutes, verify that the replacement part carries equivalent or superior regulatory approvals for your application jurisdiction.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts are ROHS3 compliant, matching the environmental compliance status of the TS-709-8.

Q: What packaging options are available for substitute parts? A: Substitute parts are available in multiple packaging formats including Box, Bulk, and Tray configurations. Packaging selection should align with procurement and inventory management requirements.

Q: Which substitute parts have active product status? A: The following parts have active product status: 4404.0021, CMB-083-11CNN-B-A, W57-XB7A4A10-8, 1140-G111-P1M1-8A, 1140-G151-P7M1-8A, 127-P10-H-KF-050022-8A, 127-P10-H-KF-8A, 1410-G110-P2F1-S01-8A, and 1410-G111-P2F1-S01-385803-8A. Active status indicates ongoing manufacturer support and availability.