TS-709-12 Thermal Circuit Breaker Equivalent & Substitute Parts

Part Overview

The TS-709-12 is a thermal circuit breaker manufactured by SCHURTER Inc., rated for 12A 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 carries ROHS3 compliance and meets CSA C22.2 and UL1077 approval standards.

Substiute Parts

TS-709-12

SCHURTER Inc.In Stock: 767TS-709-12 Datasheet

Current PartRFQ

4404.0023

SCHURTER Inc.In Stock: 15914404.0023 Datasheet

SimilarRFQ

TS-701-HT-12-K

SCHURTER Inc.In Stock: 1105TS-701-HT-12-K Datasheet

Parametric EquivalentRFQ

TS-701-HT-12H

SCHURTER Inc.In Stock: 1033TS-701-HT-12H Datasheet

Parametric EquivalentRFQ

CMB-123-11CNN-B-A

Carling TechnologiesIn Stock: 1131CMB-123-11CNN-B-A Datasheet

SimilarRFQ

1140-F111-P1M1-12A

E-T-AIn Stock: 6771140-F111-P1M1-12A Datasheet

Parametric EquivalentRFQ

1140-G111-P1M1-12A

E-T-AIn Stock: 9061140-G111-P1M1-12A Datasheet

Parametric EquivalentRFQ

1140-G151-P7M1-12A

E-T-AIn Stock: 7331140-G151-P7M1-12A Datasheet

Parametric EquivalentRFQ

127-P10-H-KF-12A

E-T-AIn Stock: 842127-P10-H-KF-12A Datasheet

Parametric EquivalentRFQ

2-5000-P10-H-12A

E-T-AIn Stock: 9712-5000-P10-H-12A Datasheet

Parametric EquivalentRFQ

CTB-B-B-12

Carling TechnologiesIn Stock: 1391CTB-B-B-12 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TS-709-12 is determined by the following critical parameters:

Primary Matching Criteria:

• Current Rating: 12A (exact match required)
• Voltage Rating - AC: 250V (exact match required)
• Voltage Rating - DC: 50V (exact match required)
• Breaker Type: Thermal (exact match required)
• Mounting Type: Panel Mount (exact match required)
• Actuator Type: Push to Reset (exact match required)
• Number of Poles: 1 (exact match required)

Acceptable Variation:

• Manufacturer: Different manufacturers permitted if all electrical and mechanical parameters match
• Product Status: Active status preferred over obsolete for new applications
• Approval Agencies: Equivalent or broader certification acceptable

Substitute parts are grouped into two categories: parametric equivalents (identical electrical and mechanical specifications) and similar parts (matching primary function with minor voltage deviations).

Parameter Comparison

Engineering Selection Recommendations

Parametric Equivalents (Identical Specifications):

The following parts provide complete parametric equivalence to TS-709-12 with identical 12A, 250V AC, 50V DC ratings:

• TS-701-HT-12-K and TS-701-HT-12H (SCHURTER Inc., obsolete status)
• 1140-F111-P1M1-12A, 1140-G111-P1M1-12A, 1140-G151-P7M1-12A (E-T-A, active status)
• 127-P10-H-KF-12A, 2-5000-P10-H-12A (E-T-A, active status)

For new designs and ongoing applications, E-T-A parametric equivalents are preferred due to active product status and broader approval certifications including IEC 60934 and CSA C22.2 No 235.

Similar Parts (Voltage Deviations):

• 4404.0023 (SCHURTER Inc.): Rated 240V AC / 48V DC. Acceptable for applications operating below 240V AC and 48V DC maximum ratings.
• CMB-123-11CNN-B-A (Carling Technologies): Rated 250V AC / 32V DC. Acceptable for applications operating below 32V DC maximum rating. Offers broader approval coverage including CE and TUV.

Compliance Considerations:

All substitute parts maintain ROHS3 compliance and REACH unaffected status. E-T-A parts provide enhanced certification coverage with IEC 60934 and CSA C22.2 No 235 approvals. Carling Technologies CMB-123-11CNN-B-A offers additional CE and TUV certifications suitable for European market applications.

Frequently Asked Questions (FAQ)

Q: Can I use 4404.0023 as a direct replacement for TS-709-12?

A: 4404.0023 is functionally similar but operates at reduced voltage ratings (240V AC / 48V DC versus 250V AC / 50V DC). It is suitable only for applications operating within its lower voltage specifications. For systems requiring full 250V AC / 50V DC capability, use parametric equivalents instead.

Q: What is the difference between E-T-A series 1140, 127, and 2-5000 parts?

A: All three E-T-A series (1140-F111-P1M1-12A, 1140-G111-P1M1-12A, 1140-G151-P7M1-12A, 127-P10-H-KF-12A, 2-5000-P10-H-12A) are parametric equivalents with identical electrical and mechanical specifications. Series designation reflects internal product line organization. Selection may be based on packaging availability and lead time.

Q: Are SCHURTER TS-701 variants acceptable replacements?

A: TS-701-HT-12-K and TS-701-HT-12H are parametric equivalents with identical specifications. However, both are classified as obsolete. For new applications, active-status E-T-A equivalents are recommended to ensure long-term availability and supply chain stability.

Q: Can CMB-123-11CNN-B-A be used in 50V DC applications?

A: No. CMB-123-11CNN-B-A is rated for maximum 32V DC. Applications requiring 50V DC operation must use parametric equivalents rated for 50V DC minimum.

Q: What packaging options are available?

A: SCHURTER TS-709-12 and TS-701 variants are supplied in standard packaging. E-T-A equivalents are available in bulk packaging. Verify packaging requirements with supplier documentation before procurement.

Q: Which substitute offers the broadest approval coverage?

A: CMB-123-11CNN-B-A (Carling Technologies) provides the most comprehensive approvals including CE, cUL, TUV, UL1077, and UL1500. However, this part has reduced DC voltage rating (32V DC). For full voltage equivalence with broad approvals, E-T-A parts provide CSA C22.2 No 235, IEC 60934, and UL1077 certifications.