Circuit Breaker Thermal Magnetic 4420.0166

Part Overview

The SCHURTER 4420.0166 is a single-pole thermal magnetic circuit breaker rated for 27A at 277V AC and 65V DC, designed for DIN rail mounting with lever actuation. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing system maintenance and new installations where this model is no longer available from primary sources.

Substiute Parts

4420.0166

SCHURTER Inc.In Stock: 9344420.0166 Datasheet

Current PartRFQ

2210-T210-K0M1-H131-32A

E-T-AIn Stock: 8792210-T210-K0M1-H131-32A Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCHURTER 4420.0166 is determined by the following critical parameters:

• Mounting Configuration: DIN rail mounting with single-pole lever actuation
• Protection Type: Thermal magnetic operation
• Current Capacity: Minimum 27A rating
• Voltage Compatibility: AC voltage rating of 277V or higher; DC voltage rating of 65V or higher
• Regulatory Compliance: Certifications meeting or exceeding the original approvals (CSA, IEC, UL, GB standards)
• RoHS Compliance: ROHS3 Compliant status maintained

The E-T-A 2210-T210-K0M1-H131-32A satisfies these substitution criteria through equivalent mounting, protection mechanism, and regulatory certifications, with enhanced current capacity (32A) and higher AC voltage rating (480V).

Parameter Comparison

Engineering Selection Recommendations

The E-T-A 2210-T210-K0M1-H131-32A is an active product with current availability, addressing the obsolescence of the SCHURTER 4420.0166. Both components maintain ROHS3 compliance and share core regulatory certifications including CSA C22.2 No 235, GB 17701, IEC 60934, and UL1077. The substitute provides equivalent or superior electrical performance across all critical parameters: matching DC voltage rating (65V), exceeding AC voltage capability (480V vs. 277V), and providing higher current capacity (32A vs. 27A). The identical mounting configuration, protection mechanism, and actuator type ensure mechanical and functional compatibility within DIN rail assemblies.

Frequently Asked Questions (FAQ)

Q: Can the E-T-A 2210-T210-K0M1-H131-32A directly replace the SCHURTER 4420.0166 in existing installations?

A: Yes. Both components share identical mounting type (DIN rail), pole configuration (single-pole), actuator mechanism (lever), and protection principle (thermal magnetic). The substitute meets or exceeds all voltage and current requirements of the original part.

Q: What is the significance of the higher current rating (32A vs. 27A) in the substitute?

A: The 32A rating of the E-T-A component provides additional capacity margin. In applications requiring exactly 27A protection, the substitute will operate within its rated envelope. The higher rating does not compromise protection function.

Q: Are the regulatory certifications equivalent between the two parts?

A: Both parts hold CSA C22.2 No 235, GB 17701, IEC 60934, and UL1077 certifications. The SCHURTER part includes additional certifications (CSA C22.2 No 14, UL508). For applications requiring these additional certifications, compliance verification against specific system requirements is necessary.

Q: What is the packaging difference between the parts?

A: The SCHURTER 4420.0166 is supplied with unspecified packaging, while the E-T-A 2210-T210-K0M1-H131-32A is supplied in bulk packaging. Both are suitable for component-level integration into control panels and switchgear assemblies.

Q: Why is the SCHURTER part classified as obsolete?

A: Obsolescence indicates the manufacturer has discontinued production. The E-T-A substitute ensures continued availability for system maintenance and new designs requiring equivalent thermal magnetic circuit protection.