3CU32L Circuit Breaker - Equivalent & Substitute Parts

Part Overview

The 3CU32L is a thermal magnetic circuit breaker manufactured by Altech Corporation, rated for 32A at 480V AC / 250V DC with lever actuation and DIN rail mounting. This part is classified as obsolete, making identification of functionally equivalent alternatives necessary for system maintenance and component replacement in existing installations.

Substiute Parts

3CU32L

Altech CorporationIn Stock: 11453CU32L Datasheet

Current PartRFQ

3C32UL

Altech CorporationIn Stock: 8123C32UL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3CU32L is determined by the following critical parameters:

• Current Rating: 32A (exact match required)
• Voltage Rating - AC: 480V (exact match required)
• Breaker Type: Thermal Magnetic (exact match required)
• Mounting Type: DIN Rail (exact match required)
• Actuator Type: Lever (exact match required)
• Number of Poles: 3 (exact match required)
• Approval Agencies: CE, cULus, UL489 (minimum compliance required)

The 3C32UL meets all substitution criteria as an active product from the same manufacturer with identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The 3C32UL is the direct substitute for the obsolete 3CU32L. Both parts share identical current, voltage, and mechanical specifications with matching approval certifications (CE, cULus, UL489). The 3C32UL maintains active product status and ROHS3 compliance, making it suitable for direct replacement in applications requiring a 32A thermal magnetic circuit breaker at 480V AC on DIN rail installations.

Frequently Asked Questions (FAQ)

Q: Can the 3C32UL directly replace the 3CU32L in existing installations?

A: Yes. Both parts are 32A thermal magnetic circuit breakers with 480V AC rating, lever actuation, 3-pole configuration, and DIN rail mounting. They carry identical approval certifications and RoHS compliance status.

Q: What is the primary reason for substitution?

A: The 3CU32L is classified as obsolete. The 3C32UL is the active equivalent from the same manufacturer with identical electrical and mechanical specifications.

Q: Are there packaging differences between these parts?

A: The 3CU32L is specified with dash packaging, while the 3C32UL is supplied in bulk packaging. This does not affect functional compatibility.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both parts carry CE, cULus, and UL489 approvals and are ROHS3 compliant.

Q: Is DC voltage rating a concern for substitution?

A: The 3CU32L specifies 250V DC rating. The 3C32UL does not specify a DC rating in the provided data. Verify DC application requirements against the 3C32UL datasheet before selection if DC operation is required.