SCHURTER 4430.2251 Thermal Circuit Breaker Equivalent & Substitute Parts

Part Overview

The SCHURTER 4430.2251 is a thermal circuit breaker rated for 20A at 240V AC and 60V DC with rocker panel mount actuation and dual-pole configuration. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system maintenance and new design implementations. Active alternatives within the TA45 series provide identical electrical and mechanical specifications while offering current product availability and support.

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
RoHS Status	ROHS3 Compliant
REACH Status	REACH Unaffected

Substitute Part Grouping Explanation

Substitution of SCHURTER thermal circuit breakers within the TA45 series is determined by strict equivalence across the following parameters: current rating (20A), voltage ratings (240V AC / 60V DC), breaker type (thermal), mounting configuration (panel mount), actuator style (rocker), and pole count (2-pole). All substitute parts listed maintain identical electrical performance characteristics and mechanical form factors. Substitution is valid only when all specified parameters match exactly. Product status transitions from obsolete to active do not affect electrical or mechanical compatibility.

Parameter Comparison

Part Number	Manufacturer	Series	Current Rating	Voltage AC	Voltage DC	Breaker Type	Mounting	Actuator	Poles	Product Status	Inventory (Pcs)
4430.2251	SCHURTER Inc.	TA45	20A	240V	60V	Thermal	Panel Mount	Rocker	2	Obsolete	1084
4430.256	SCHURTER Inc.	TA45	20A	240V	60V	Thermal	Panel Mount	Rocker	2	Active	758
4430.0035	SCHURTER Inc.	TA45	20A	240V	60V	Thermal	Panel Mount	Rocker	2	Active	673
4430.0038	SCHURTER Inc.	TA45	20A	240V	60V	Thermal	Panel Mount	Rocker	2	Active	688
4430.0572	SCHURTER Inc.	TA45	20A	240V	60V	Thermal	Panel Mount	Rocker	2	Active	951
4430.0978	SCHURTER Inc.	TA45	20A	240V	60V	Thermal	Panel Mount	Rocker	2	Active	1070
4430.0988	SCHURTER Inc.	TA45	20A	240V	60V	Thermal	Panel Mount	Rocker	2	Active	1097
4430.1067	SCHURTER Inc.	TA45	20A	240V	60V	Thermal	Panel Mount	Rocker	2	Active	922
4430.1068	SCHURTER Inc.	TA45	20A	240V	60V	Thermal	Panel Mount	Rocker	2	Active	916
4430.1203	SCHURTER Inc.	TA45	20A	240V	60V	Thermal	Panel Mount	Rocker	2	Active	733
4430.161	SCHURTER Inc.	TA45	20A	240V	60V	Thermal	Panel Mount	Rocker	2	Active	753

Engineering Selection Recommendations

All listed substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. Parts 4430.0572, 4430.1067, 4430.1068, 4430.1203, and 4430.161 carry full approval agency certifications (CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, UL1077), matching the certification profile of the original 4430.2251. For applications requiring documented compliance with these standards, selection from the certified subset is appropriate. All substitute parts maintain identical electrical performance and mechanical compatibility with the obsolete 4430.2251, enabling direct replacement in existing designs.

Frequently Asked Questions (FAQ)

Q: Can any of these substitute parts directly replace the SCHURTER 4430.2251?

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), actuator type (rocker), and pole count (2). Direct substitution is valid for all listed alternatives.

Q: What is the difference between the substitute parts?

A: All substitute parts share identical electrical and mechanical specifications. Differences exist only in internal design variants and manufacturing batches, which do not affect functional performance or compatibility. Product status varies between active and obsolete classifications.

Q: Do certification requirements affect part selection?

A: Parts 4430.0572, 4430.1067, 4430.1068, 4430.1203, and 4430.161 carry full approval agency certifications. If your application requires documented compliance with CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, or UL1077, select from this certified subset. Other parts remain compliant with RoHS3 and REACH requirements.

Q: Are there packaging differences among substitute parts?

A: The original 4430.2251 is packaged as individual units. Substitute parts 4430.256 and all parametric equivalents are supplied in bulk packaging. Confirm bulk packaging compatibility with your procurement and assembly processes.

Q: Which substitute part has the highest current inventory?

A: Part 4430.0988 has the highest inventory at 1097 pieces, followed by 4430.2251 at 1084 pieces and 4430.0572 at 951 pieces.

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