SCHURTER 4430.3777 Circuit Breaker Thermal 1.5A 240VAC 60VDC Equivalent & Substitute Parts

Part Overview

The SCHURTER 4430.3777 is a thermal circuit breaker rated for 1.5A at 240V AC and 60V DC, featuring a rocker actuator and panel mount configuration in the TA45 series. This component is active in production and ROHS3 compliant. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical form factor, and functional specifications to ensure direct interchangeability in panel-mounted thermal protection applications.

Key Parameters

Parameter	Specification
Manufacturer Part Number	4430.3777
Manufacturer	SCHURTER Inc.
Series	TA45
Breaker Type	Thermal
Current Rating	1.5A
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

Substitute parts for the SCHURTER 4430.3777 are qualified based on the following electrical and mechanical parameters:

Current Rating: 1.5A (exact match required)
Voltage Rating - AC: 240V (exact match required)
Voltage Rating - DC: 60V (exact match required)
Breaker Type: Thermal (exact match required)
Mounting Type: Panel Mount (exact match required)
Actuator Type: Rocker (exact match required)
Number of Poles: 2 (exact match required)
Product Status: Active (current production status)
RoHS Compliance: ROHS3 Compliant

All identified substitute parts meet these criteria. Parts within the TA45 series maintain identical specifications. Part 4435.0213 belongs to the TA35 series but maintains all electrical and mechanical compatibility parameters.

Parameter Comparison

Part Number	Series	Current Rating	Voltage AC	Voltage DC	Breaker Type	Mounting	Actuator	Poles	Status	RoHS	Inventory
4430.3777	TA45	1.5A	240V	60V	Thermal	Panel Mount	Rocker	2	Active	ROHS3	954 Pcs
4430.0542	TA45	1.5A	240V	60V	Thermal	Panel Mount	Rocker	2	Active	ROHS3	1103 Pcs
4430.2032	TA45	1.5A	240V	60V	Thermal	Panel Mount	Rocker	2	Active	ROHS3	1068 Pcs
4430.2989	TA45	1.5A	240V	60V	Thermal	Panel Mount	Rocker	2	Active	ROHS3	952 Pcs
4430.332	TA45	1.5A	240V	60V	Thermal	Panel Mount	Rocker	2	Active	ROHS3	752 Pcs
4435.0213	TA35	1.5A	240V	60V	Thermal	Panel Mount	Rocker	2	Active	ROHS3	905 Pcs

Engineering Selection Recommendations

All substitute parts listed are active production components with ROHS3 compliance and REACH unaffected status. Parts 4430.0542, 4430.2032, 4430.2989, and 4430.332 are direct equivalents within the TA45 series. Part 4435.0213 operates within the TA35 series while maintaining identical electrical and mechanical specifications.

Selection among these parts is based on availability and application-specific certifications. Parts 4430.2032 and 4430.2989 carry additional approval agency certifications including CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, and UL1077. Part 4430.332 lists MSL as vendor undefined, while all other parts specify MSL as not applicable.

Frequently Asked Questions (FAQ)

Q: What makes these parts interchangeable with the SCHURTER 4430.3777?

A: All substitute parts share identical electrical ratings (1.5A, 240V AC, 60V DC), breaker type (thermal), mounting configuration (panel mount rocker), and pole count (2). These parameters define functional equivalence for thermal circuit breaker applications.

Q: Can I use part 4435.0213 from the TA35 series as a direct replacement?

A: Yes. Although 4435.0213 belongs to the TA35 series rather than TA45, it maintains all specified electrical and mechanical parameters required for direct substitution.

Q: Are there differences in regulatory compliance among the substitute parts?

A: Parts 4430.2032 and 4430.2989 include documented approval agency certifications (CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077). All parts are ROHS3 compliant and REACH unaffected. Application requirements may dictate selection based on specific certification needs.

Q: What is the significance of MSL status differences?

A: Part 4430.332 lists MSL as vendor undefined, while other parts specify MSL as not applicable. This distinction does not affect thermal circuit breaker functionality but may be relevant for storage and handling protocols in moisture-sensitive environments.

Q: How should I select among multiple available substitutes?

A: Selection should prioritize current inventory availability and application-specific regulatory requirements. All parts are functionally equivalent for thermal protection at 1.5A, 240V AC, and 60V DC ratings.

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