3E63UM 63A Circuit Breaker Equivalent & Substitute Parts

Part Overview

The 3E63UM is a thermal magnetic circuit breaker manufactured by Altech Corporation, rated for 63A at 480V AC and 60V DC. This DIN rail-mounted breaker features a lever actuator and three poles, designed for industrial electrical distribution applications. The product is currently active in production with UL508 approval and ROHS3 compliance. Substitute parts are identified when equivalent electrical and mechanical parameters are required for component replacement or procurement alternatives.

Substiute Parts

3E63UM

Altech CorporationIn Stock: 10663E63UM Datasheet

Current PartRFQ

3G63UM

Altech CorporationIn Stock: 8733G63UM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The 3G63UM qualifies as a parametric equivalent to the 3E63UM based on identical electrical and mechanical specifications. Both parts share the same current rating (63A), voltage ratings (480V AC / 60V DC), breaker type (thermal magnetic), mounting configuration (DIN rail), pole count (3), actuator mechanism (lever), and regulatory approval (UL508). The substitution is valid where these core parameters define the functional requirement. The difference between the two models lies in the trip characteristic designation (E-characteristic versus G-characteristic), which reflects different thermal-magnetic response curves suitable for specific load protection scenarios.

Parameter Comparison

Engineering Selection Recommendations

Both the 3E63UM and 3G63UM are active products with identical regulatory compliance (UL508 approval, ROHS3 compliance, REACH unaffected status). Selection between these two models should be based on the specific trip characteristic requirement for the application. The E-characteristic and G-characteristic designations indicate different thermal-magnetic response profiles. Component selection must align with the load protection curve specified in the system design. Both parts are suitable for industrial 480V AC / 60V DC distribution systems with DIN rail mounting requirements.

Frequently Asked Questions (FAQ)

Q: Can the 3G63UM replace the 3E63UM in an existing installation?

A: Substitution is valid when the trip characteristic requirement permits. Both parts share identical electrical ratings (63A, 480V AC, 60V DC), breaker type (thermal magnetic), mounting (DIN rail), and regulatory approvals (UL508). The E-characteristic and G-characteristic designations must match the system protection curve specification.

Q: What is the difference between E-characteristic and G-characteristic?

A: The characteristic designation refers to the thermal-magnetic response curve. Selection depends on the specific load protection requirements defined in the circuit design. Both characteristics are available in the V-EA series at 63A rating.

Q: Are both parts available in the same packaging?

A: Both the 3E63UM and 3G63UM are supplied in bulk packaging. Current inventory shows 957 units of 3E63UM and 790 units of 3G63UM in stock.

Q: Do these parts have the same compliance certifications?

A: Yes. Both parts carry UL508 approval, ROHS3 compliance, and REACH unaffected status, making them suitable for equivalent applications in regulated environments.

Q: What mounting configuration do these breakers use?

A: Both the 3E63UM and 3G63UM are DIN rail-mounted with three poles and lever actuators, providing identical mechanical integration into standard industrial distribution panels.