3C50UM 50A Circuit Breaker Equivalent & Substitute Parts

Part Overview

The 3C50UM is a three-pole thermal magnetic circuit breaker manufactured by Altech Corporation, rated for 50A at 480V AC and 60V DC. This DIN rail-mounted breaker features a lever actuator and is part of the V-EA series. The product is active and widely stocked, with 933 units currently available. Circuit breakers of this specification are essential components in industrial and commercial electrical distribution systems, providing overcurrent and short-circuit protection. Equivalent substitute parts may be required due to supply chain considerations, inventory availability, or specific application requirements within the same electrical and mechanical parameter envelope.

Substiute Parts

3C50UM

Altech CorporationIn Stock: 10363C50UM Datasheet

Current PartRFQ

3E50UM

Altech CorporationIn Stock: 11113E50UM Datasheet

Parametric EquivalentRFQ

3G50UM

Altech CorporationIn Stock: 11473G50UM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The 3C50UM has two parametric equivalents within the Altech Corporation V-EA series: the 3E50UM and 3G50UM. These substitutes are qualified based on identical electrical and mechanical parameters:

• Current Rating: 50A (all three parts)
• Voltage Rating - AC: 480V (all three parts)
• Voltage Rating - DC: 60V (all three parts)
• Breaker Type: Thermal Magnetic (all three parts)
• Number of Poles: 3 (all three parts)
• Mounting Type: DIN Rail (all three parts)
• Actuator Type: Lever (all three parts)
• Series: V-EA (all three parts)
• Approval Agencies: CSA, UL508 (all three parts)

The primary distinction between these parts lies in their thermal trip characteristics, indicated by the letter designation (C, E, and G characters). All three parts maintain identical voltage, current, and mechanical specifications, making them interchangeable within applications where the specific thermal characteristic curve is not a constraint.

Parameter Comparison

Engineering Selection Recommendations

All three parts—3C50UM, 3E50UM, and 3G50UM—are active products with full CSA and UL508 certification, ensuring compliance with industrial electrical standards. Each part maintains ROHS3 compliance and identical electrical specifications. Selection between these equivalents should be based on application-specific thermal trip curve requirements and current inventory availability. The 3E50UM and 3G50UM currently maintain higher stock levels (1001 and 1048 units respectively) compared to the 3C50UM (933 units), which may influence procurement decisions for high-volume applications.

Frequently Asked Questions (FAQ)

Q: Can the 3E50UM and 3G50UM be used interchangeably with the 3C50UM in the same circuit?

A: Yes, provided the application does not require a specific thermal trip characteristic curve. All three parts share identical voltage ratings (480V AC, 60V DC), current rating (50A), pole configuration (3-pole), and mounting specifications (DIN Rail, lever actuator). Substitution is valid from an electrical and mechanical standpoint.

Q: What is the significance of the letter designation (C, E, G) in the part numbers?

A: The letter designation indicates the thermal trip characteristic curve of the breaker. While the provided specifications do not detail the specific curve parameters, these designations represent different thermal response profiles. Application requirements may dictate which characteristic is appropriate.

Q: Are all three parts certified to the same standards?

A: Yes. The 3C50UM, 3E50UM, and 3G50UM all carry CSA and UL508 approvals and are ROHS3 compliant, meeting the same regulatory and environmental standards.

Q: What packaging format is used for these circuit breakers?

A: All three parts are supplied in bulk packaging, suitable for industrial procurement and integration into electrical distribution systems.

Q: Is there a difference in physical dimensions or DIN rail compatibility between these parts?

A: No dimensional or mounting differences are specified in the provided parameters. All three parts are designed for DIN rail mounting with identical mechanical interfaces.