SCHURTER 4430.0978 Circuit Breaker Thermal 20A 240VAC 60VDC Equivalent & Substitute Parts

Part Overview

The SCHURTER 4430.0978 is a thermal circuit breaker rated for 20A at 240V AC and 60V DC, featuring a rocker actuator and panel mount configuration in the TA45 series. This component is active in production with 1070 units currently in stock. Equivalent and substitute parts are necessary to support supply chain flexibility, accommodate regional availability variations, and provide design alternatives while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Manufacturer	SCHURTER Inc.
Series	TA45
Breaker Type	Thermal
Current Rating	20A
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
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

All substitute parts listed maintain identical electrical and mechanical parameters as the main part 4430.0978. Substitution eligibility is determined by the following criteria:

Current Rating: 20A (all substitutes match)
Voltage Rating - AC: 240V (all substitutes match)
Voltage Rating - DC: 60V (all substitutes match)
Breaker Type: Thermal (all substitutes match)
Mounting Type: Panel Mount (all substitutes match)
Actuator Type: Rocker (all substitutes match)
Number of Poles: 2 (all substitutes match)
Series: TA45 (all substitutes match)
Product Status: Active (all substitutes are active)
RoHS Status: ROHS3 Compliant (all substitutes comply)
REACH Status: REACH Unaffected (all substitutes unaffected)

Variations in Moisture Sensitivity Level (MSL) designation do not affect substitution eligibility. Differences in regulatory approval agency certifications (CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077) indicate additional validation but do not restrict substitution for applications requiring the base electrical and mechanical specifications.

Parameter Comparison

Part Number	Manufacturer	Series	Breaker Type	Current Rating	Voltage AC	Voltage DC	Mounting	Actuator	Poles	Status	Inventory (Pcs)
4430.0978	SCHURTER Inc.	TA45	Thermal	20A	240V	60V	Panel Mount	Rocker	2	Active	1070
4430.0035	SCHURTER Inc.	TA45	Thermal	20A	240V	60V	Panel Mount	Rocker	2	Active	673
4430.0038	SCHURTER Inc.	TA45	Thermal	20A	240V	60V	Panel Mount	Rocker	2	Active	688
4430.0572	SCHURTER Inc.	TA45	Thermal	20A	240V	60V	Panel Mount	Rocker	2	Active	951
4430.0988	SCHURTER Inc.	TA45	Thermal	20A	240V	60V	Panel Mount	Rocker	2	Active	1097
4430.1067	SCHURTER Inc.	TA45	Thermal	20A	240V	60V	Panel Mount	Rocker	2	Active	922
4430.1068	SCHURTER Inc.	TA45	Thermal	20A	240V	60V	Panel Mount	Rocker	2	Active	916
4430.161	SCHURTER Inc.	TA45	Thermal	20A	240V	60V	Panel Mount	Rocker	2	Active	753
4430.1629	SCHURTER Inc.	TA45	Thermal	20A	240V	60V	Panel Mount	Rocker	2	Active	1098
4430.1789	SCHURTER Inc.	TA45	Thermal	20A	240V	60V	Panel Mount	Rocker	2	Active	1031
4430.1805	SCHURTER Inc.	TA45	Thermal	20A	240V	60V	Panel Mount	Rocker	2	Active	933

Engineering Selection Recommendations

All listed substitute parts are functionally equivalent to the main part 4430.0978 based on identical electrical ratings, mechanical configuration, and active product status. Selection among these parts should be based on:

Inventory availability: Parts 4430.0988 (1097 units) and 4430.1629 (1098 units) offer highest stock levels.

Regulatory certifications: Parts 4430.0572, 4430.1067, 4430.1068, and 4430.1805 carry additional approval agency certifications (CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077) for applications requiring documented compliance to these standards.

Moisture Sensitivity Level: Parts 4430.0572, 4430.1067, 4430.1068, and 4430.1805 specify MSL as "Not Applicable," while others list "Vendor Undefined." This distinction does not affect electrical or mechanical substitution.

All parts maintain ROHS3 compliance and REACH unaffected status, meeting environmental regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can any of these substitute parts be used interchangeably with 4430.0978?

A: Yes. All listed parts are parametric equivalents with identical current rating (20A), voltage ratings (240V AC, 60V DC), breaker type (thermal), mounting configuration (panel mount rocker), and pole count (2). They are direct substitutes for the 4430.0978.

Q: What is the difference between parts with and without regulatory certifications?

A: Parts 4430.0572, 4430.1067, 4430.1068, and 4430.1805 carry documented approvals from CSA, EN, GB, IEC, and UL standards bodies. Parts without listed certifications meet the same electrical and mechanical specifications but may not have the same level of third-party validation documentation. Selection depends on application requirements for regulatory compliance documentation.

Q: Does Moisture Sensitivity Level affect substitution?

A: No. MSL designation does not affect the electrical or mechanical substitution eligibility of these thermal circuit breakers. All parts are suitable for the same applications regardless of MSL classification.

Q: Are all substitute parts currently in production?

A: Yes. All listed parts maintain active product status with SCHURTER Inc. and are available in bulk packaging with current inventory levels ranging from 673 to 1098 units.

Q: What packaging is used for these parts?

A: All parts are supplied in bulk packaging as specified by SCHURTER Inc.

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