SCHURTER 4430.21 Thermal Circuit Breaker Equivalent & Substitute Parts

Part Overview

The SCHURTER 4430.21 is an active thermal circuit breaker rated for 6A at 240V AC / 60V DC with rocker panel mount actuation and dual-pole configuration. This component is part of the TA45 series and maintains full compliance with CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, and UL1077 standards. Equivalent and substitute parts within this series share identical electrical and mechanical specifications, enabling direct replacement in applications requiring thermal overcurrent protection.

Key Parameters

Parameter	Specification
Manufacturer	SCHURTER Inc.
Series	TA45
Breaker Type	Thermal
Current Rating	6A
Voltage Rating - AC	240V
Voltage Rating - DC	60V
Mounting Type	Panel Mount
Actuator Type	Rocker
Number of Poles	2
Product Status	Active
RoHS Status	ROHS3 Compliant
Approval Agencies	CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077

Substitute Part Grouping Explanation

All substitute parts listed maintain parametric equivalence to the main part 4430.21 across all critical electrical and mechanical parameters. Substitution is valid based on the following criteria:

Current Rating: 6A (identical across all parts)
Voltage Rating: 240V AC / 60V DC (identical across all parts)
Breaker Type: Thermal (identical across all parts)
Mounting Configuration: Panel Mount with Rocker actuation (identical across all parts)
Pole Configuration: 2-pole (identical across all parts)
Series Classification: TA45 (identical across all parts)
Regulatory Compliance: All parts meet CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, and UL1077 standards
Environmental Status: ROHS3 Compliant, REACH Unaffected (identical across all parts)

These parts are functionally interchangeable for direct replacement applications.

Parameter Comparison

Part Number	Manufacturer	Series	Current Rating	Voltage AC	Voltage DC	Breaker Type	Mounting Type	Poles	Actuator	Product Status	RoHS Status	Inventory (Pcs)
4430.21	SCHURTER Inc.	TA45	6A	240V	60V	Thermal	Panel Mount	2	Rocker	Active	ROHS3 Compliant	681
4430.0012	SCHURTER Inc.	TA45	6A	240V	60V	Thermal	Panel Mount	2	Rocker	Active	ROHS3 Compliant	662
4430.0707	SCHURTER Inc.	TA45	6A	240V	60V	Thermal	Panel Mount	2	Rocker	Active	ROHS3 Compliant	926
4430.0991	SCHURTER Inc.	TA45	6A	240V	60V	Thermal	Panel Mount	2	Rocker	Active	ROHS3 Compliant	1026
4430.1121	SCHURTER Inc.	TA45	6A	240V	60V	Thermal	Panel Mount	2	Rocker	Active	ROHS3 Compliant	686
4430.1251	SCHURTER Inc.	TA45	6A	240V	60V	Thermal	Panel Mount	2	Rocker	Active	ROHS3 Compliant	705
4430.1608	SCHURTER Inc.	TA45	6A	240V	60V	Thermal	Panel Mount	2	Rocker	Active	ROHS3 Compliant	875
4430.2215	SCHURTER Inc.	TA45	6A	240V	60V	Thermal	Panel Mount	2	Rocker	Active	ROHS3 Compliant	943
4430.2872	SCHURTER Inc.	TA45	6A	240V	60V	Thermal	Panel Mount	2	Rocker	Active	ROHS3 Compliant	836
4430.2931	SCHURTER Inc.	TA45	6A	240V	60V	Thermal	Panel Mount	2	Rocker	Active	ROHS3 Compliant	934
4430.3456	SCHURTER Inc.	TA45	6A	240V	60V	Thermal	Panel Mount	2	Rocker	Active	ROHS3 Compliant	718

Engineering Selection Recommendations

All listed substitute parts are active products with full regulatory compliance to CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, and UL1077 standards. Selection among equivalent parts may be based on inventory availability and lead time requirements. All parts maintain ROHS3 compliance and REACH unaffected status, ensuring environmental and regulatory conformance across all options.

Frequently Asked Questions (FAQ)

Q: Can all listed parts be used interchangeably with SCHURTER 4430.21?

A: Yes. All substitute parts share identical electrical ratings (6A, 240V AC / 60V DC), thermal breaker type, dual-pole configuration, rocker panel mount actuation, and regulatory certifications. Direct replacement is supported.

Q: What determines if a part is a valid substitute?

A: Substitution validity is based on matching current rating, voltage ratings (AC and DC), breaker type, mounting configuration, pole count, series classification, and regulatory compliance. All listed parts meet these criteria.

Q: Are there differences in packaging or mechanical form factor?

A: All parts are specified as Bulk packaging with Panel Mount configuration and Rocker actuation. No mechanical or form factor differences exist among the listed equivalents.

Q: Do all substitute parts meet the same regulatory standards?

A: Yes. All parts comply with CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, and UL1077. Environmental compliance (ROHS3, REACH Unaffected) is consistent across all options.

Q: How should inventory levels influence part selection?

A: Inventory availability ranges from 662 to 1026 pieces across the substitute options. Selection may prioritize parts with higher stock levels to minimize lead time in procurement scenarios.

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