3E4UM 4A Circuit Breaker Equivalent & Substitute Parts

Part Overview

The 3E4UM is a thermal magnetic circuit breaker manufactured by Altech Corporation, rated for 4A at 480V AC and 80V DC. This DIN rail-mounted breaker features a lever actuator and three poles, designed for industrial control applications. The product is currently active in production with full inventory availability. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product category, ensuring functional interchangeability in circuit protection applications.

Substiute Parts

3E4UM

Altech CorporationIn Stock: 9803E4UM Datasheet

Current PartRFQ

3D4UM

Altech CorporationIn Stock: 7293D4UM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The 3D4UM is identified as a parametric equivalent to the 3E4UM based on the following critical substitution criteria:

• Current Rating: Both rated at 4A
• Voltage Ratings: Both rated at 480V AC and 80V DC
• Breaker Type: Both are thermal magnetic
• Mounting Configuration: Both are DIN rail-mounted
• Actuator Type: Both feature lever actuation
• Pole Configuration: Both are 3-pole designs
• Series Classification: Both belong to the V-EA series
• Regulatory Compliance: Both hold CSA and UL508 certifications

The 3D4UM carries an additional VDE approval certification, providing expanded compliance coverage for European applications. Both parts maintain identical electrical performance characteristics and mechanical form factors, enabling direct substitution in circuit protection circuits.

Parameter Comparison

Engineering Selection Recommendations

Both the 3E4UM and 3D4UM are active production components from Altech Corporation with full regulatory compliance. Selection between these parts should be based on application-specific certification requirements:

The 3E4UM is suitable for applications requiring CSA and UL508 compliance within North American markets. The 3D4UM provides equivalent electrical and mechanical performance with the addition of VDE certification, making it the appropriate choice for installations requiring European regulatory approval or multi-regional deployment.

Both parts maintain identical thermal magnetic protection characteristics, DIN rail compatibility, and 4A current handling capacity. Inventory availability is confirmed for both part numbers, with 891 units of 3E4UM and 668 units of 3D4UM currently in stock.

Frequently Asked Questions (FAQ)

Q: Can the 3D4UM directly replace the 3E4UM in existing installations?

A: Yes. The 3D4UM is a parametric equivalent with identical electrical ratings (4A, 480V AC, 80V DC), breaker type (thermal magnetic), mounting configuration (DIN rail), and pole count (3-pole). Both parts are mechanically and electrically interchangeable.

Q: What is the difference between the 3E4UM and 3D4UM?

A: The primary difference is regulatory certification scope. The 3E4UM holds CSA and UL508 approvals, while the 3D4UM includes these certifications plus VDE approval. All electrical and mechanical parameters are identical.

Q: Which part should be selected for European applications?

A: The 3D4UM is recommended for European installations due to its VDE certification. However, both parts meet the same electrical performance requirements and can be used interchangeably where certification scope permits.

Q: Are there any packaging or form factor differences?

A: Both parts are supplied in bulk packaging and feature identical DIN rail mounting specifications. No form factor or dimensional differences exist between the two part numbers.

Q: What certifications apply to both parts?

A: Both the 3E4UM and 3D4UM hold CSA and UL508 certifications. The 3D4UM additionally carries VDE approval.