SCHURTER 4435.0185 Circuit Breaker Thermal 20A 240VAC 60VDC Equivalent & Substitute Parts

Part Overview

The SCHURTER 4435.0185 is an active thermal circuit breaker rated for 20A at 240V AC and 60V DC, featuring a rocker actuator and panel mount configuration in the TA35 series. This component is designed for overcurrent protection in AC and DC applications requiring dual-voltage operation. Substitute parts are necessary when the TA35 series becomes unavailable or when design requirements call for alternative series variants that maintain identical electrical and mechanical specifications.

Key Parameters

Parameter	Specification
Manufacturer Part Number	4435.0185
Manufacturer	SCHURTER Inc.
Series	TA35
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
Packaging	Bulk

Substitute Part Grouping Explanation

Substitution eligibility for the SCHURTER 4435.0185 is determined by strict equivalence across the following critical parameters:

Current Rating: 20A (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)
RoHS Status: ROHS3 Compliant (minimum requirement)
REACH Status: REACH Unaffected (minimum requirement)

All substitute parts listed below meet these criteria. Series designation (TA35 vs. TA45) does not restrict substitution when all electrical and mechanical parameters are identical. Substitute parts are grouped by series variant and availability status.

Parameter Comparison

Part Number	Series	Current Rating	Voltage AC	Voltage DC	Breaker Type	Mounting	Actuator	Poles	RoHS	Inventory (Pcs)
4435.0185	TA35	20A	240V	60V	Thermal	Panel Mount	Rocker	2	ROHS3	1114
4430.0035	TA45	20A	240V	60V	Thermal	Panel Mount	Rocker	2	ROHS3	673
4430.0038	TA45	20A	240V	60V	Thermal	Panel Mount	Rocker	2	ROHS3	688
4430.0572	TA45	20A	240V	60V	Thermal	Panel Mount	Rocker	2	ROHS3	951
4430.0978	TA45	20A	240V	60V	Thermal	Panel Mount	Rocker	2	ROHS3	1070
4430.0988	TA45	20A	240V	60V	Thermal	Panel Mount	Rocker	2	ROHS3	1097
4430.1067	TA45	20A	240V	60V	Thermal	Panel Mount	Rocker	2	ROHS3	922
4430.1068	TA45	20A	240V	60V	Thermal	Panel Mount	Rocker	2	ROHS3	916
4430.161	TA45	20A	240V	60V	Thermal	Panel Mount	Rocker	2	ROHS3	753
4430.1629	TA45	20A	240V	60V	Thermal	Panel Mount	Rocker	2	ROHS3	1098
4430.1789	TA45	20A	240V	60V	Thermal	Panel Mount	Rocker	2	ROHS3	1031

Engineering Selection Recommendations

All listed substitute parts maintain active product status and ROHS3 compliance. Selection between the main part (4435.0185, TA35 series) and substitute parts (TA45 series variants) should be based on availability and design documentation requirements.

Parts 4430.0572, 4430.1067, 4430.1068, and 4430.161 include documented approval agency certifications: CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, and UL1077. These certifications are provided in the component data and may be relevant for applications requiring specific regulatory compliance documentation.

Moisture Sensitivity Level (MSL) is listed as either Not Applicable or Vendor Undefined across all parts, indicating no special moisture handling requirements for storage or handling.

Frequently Asked Questions (FAQ)

Q: Can I substitute 4430.0035 for 4435.0185 in my application?

A: Yes. Both parts are electrically and mechanically equivalent with identical current ratings (20A), voltage ratings (240V AC / 60V DC), breaker type (thermal), mounting configuration (panel mount rocker), and pole count (2). The series designation change from TA35 to TA45 does not affect substitution eligibility when all specified parameters match.

Q: What is the difference between TA35 and TA45 series parts?

A: Based on provided data, both series share identical electrical specifications and mechanical configurations for this 20A 240VAC 60VDC application. Series designation alone does not determine substitution compatibility; all critical parameters must match.

Q: Do any substitute parts have additional certifications?

A: Parts 4430.0572, 4430.1067, 4430.1068, and 4430.161 include approval agency certifications for CSA C22.2 No 235, EN 60934, GB 17701, IEC 60934, and UL1077. Other parts do not list these certifications in the provided data.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts are ROHS3 compliant and REACH unaffected, matching the compliance status of the main part 4435.0185.

Q: Which substitute part has the highest inventory availability?

A: Part 4430.0988 has the highest inventory with 1097 pieces in stock, followed by 4430.1629 with 1098 pieces. The main part 4435.0185 has 1114 pieces available.

Q: Can I use these parts interchangeably in existing designs?

A: Yes, provided your design documentation specifies only the electrical and mechanical parameters listed in this reference. If your design specifies a particular series (TA35 or TA45) or requires specific approval certifications, verify compatibility before substitution.

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