Circuit Breaker Thermal Magnetic 4A 180 VDC SCHURTER 4420.0484

Part Overview

The SCHURTER 4420.0484 is a single-pole thermal magnetic circuit breaker rated for 4A at 180 VDC with lever actuation and DIN rail mounting. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing system maintenance and new installations where this specific model is no longer available from the manufacturer.

Substiute Parts

4420.0484

SCHURTER Inc.In Stock: 12224420.0484 Datasheet

Current PartRFQ

1C4UL

Altech CorporationIn Stock: 8061C4UL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the SCHURTER 4420.0484 is determined by the following critical parameters:

• Breaker Type: Thermal Magnetic operation
• Current Rating: 4A nominal
• Mounting Configuration: Single-pole, DIN rail mount
• Actuator Interface: Lever operation
• Voltage Compatibility: DC or AC/DC rated systems

The Altech Corporation 1C4UL meets these core functional requirements. While the SCHURTER part is rated specifically for 180 VDC and the Altech substitute is rated for 277 VAC, both components share identical current handling (4A), breaker topology (thermal magnetic), mounting standard (DIN rail), pole configuration (1P), and actuation method (lever). The voltage rating difference reflects the substitute's broader AC/DC capability, making it suitable for applications where the original 180 VDC specification can be accommodated within the substitute's voltage envelope.

Parameter Comparison

Engineering Selection Recommendations

The Altech 1C4UL is an active product with current manufacturing support, addressing the obsolescence status of the SCHURTER 4420.0484. Both components carry ROHS3 compliance and maintain thermal magnetic protection topology at 4A capacity with lever-actuated DIN rail mounting.

The SCHURTER part holds broader international approvals (EN 60934, GB 17701, IEC 60934), while the Altech substitute carries UL489 certification and cULus marking, providing North American and Canadian regulatory coverage. The voltage rating difference (180 VDC original versus 277 VAC substitute) requires verification that the substitute's voltage specification aligns with the actual system operating conditions.

Frequently Asked Questions (FAQ)

Q: Can the Altech 1C4UL directly replace the SCHURTER 4420.0484 in all applications?

A: Both components share identical current rating (4A), breaker type (thermal magnetic), pole configuration (1P), mounting standard (DIN rail), and actuation method (lever). The primary consideration is voltage compatibility. The original part is rated for 180 VDC; the substitute is rated for 277 VAC. Confirmation that the system voltage falls within the substitute's rating is required before installation.

Q: What is the difference in approval certifications between these two parts?

A: The SCHURTER 4420.0484 carries CSA, EN, GB, IEC, and UL approvals. The Altech 1C4UL carries CE, cULus, and UL489 certifications. The specific regulatory requirements of your application determine which certification set is applicable.

Q: Are there packaging differences between the original and substitute?

A: The SCHURTER part is packaged as individual units; the Altech substitute is supplied in bulk packaging. This affects procurement and inventory management but does not impact functional compatibility.

Q: Why is the SCHURTER part listed as obsolete?

A: Obsolescence indicates the manufacturer has discontinued production. The Altech 1C4UL is an active product with ongoing manufacturing availability, making it suitable for replacement in new designs and system maintenance.