3E5UM 5A Circuit Breaker Equivalent & Substitute Parts

Part Overview

The 3E5UM is a three-pole thermal magnetic circuit breaker manufactured by Altech Corporation, rated for 5A at 480V AC and 80V DC operation. This DIN rail-mounted breaker features lever actuation and is certified by CSA and UL508. The product is active and currently in stock with 952 units available. Equivalent substitute parts are necessary when primary inventory is depleted, when alternative thermal-magnetic characteristics are required for specific circuit protection applications, or when sourcing from multiple qualified suppliers is mandated by procurement standards.

Substiute Parts

3E5UM

Altech CorporationIn Stock: 9903E5UM Datasheet

Current PartRFQ

3C5UM

Altech CorporationIn Stock: 8773C5UM Datasheet

Parametric EquivalentRFQ

3D5UM

Altech CorporationIn Stock: 8873D5UM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The 3E5UM circuit breaker has two qualified parametric equivalents within the Altech V-EA series: the 3C5UM and 3D5UM. Substitution eligibility is determined by strict equivalence across the following critical parameters:

• Current Rating: 5A (identical across all three parts)
• Voltage Rating - AC: 480V (identical across all three parts)
• Voltage Rating - DC: 80V (identical across all three parts)
• Breaker Type: Thermal Magnetic (identical across all three parts)
• Number of Poles: 3 (identical across all three parts)
• Mounting Type: DIN Rail (identical across all three parts)
• Actuator Type: Lever (identical across all three parts)
• Series: V-EA (identical across all three parts)
• Packaging: Bulk (identical across all three parts)

The primary distinction between these parts lies in their thermal-magnetic trip characteristics, designated by the letter suffix (E, C, or D). These designations indicate different thermal and magnetic response curves suitable for different load profiles and circuit protection requirements. All three parts maintain identical electrical and mechanical interfaces, enabling direct substitution within DIN rail installations.

Parameter Comparison

Engineering Selection Recommendations

All three circuit breaker models (3E5UM, 3C5UM, 3D5UM) are active products with equivalent electrical and mechanical specifications. Selection between these parts should be based on:

1. Thermal-magnetic trip characteristic requirements for the specific circuit protection application. The letter designations (E, C, D) indicate different response curves; consult application requirements to determine the appropriate characteristic.

2. Regulatory compliance scope. The 3C5UM and 3D5UM carry additional VDE certification beyond the CSA and UL508 certifications present on the 3E5UM. If VDE compliance is mandated by regional standards or procurement specifications, the 3C5UM or 3D5UM are required.

3. Inventory availability and supply chain considerations. Current stock levels are 952 units (3E5UM), 829 units (3C5UM), and 876 units (3D5UM).

4. All parts are ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the 3C5UM be used as a direct replacement for the 3E5UM?

A: Yes, the 3C5UM is a parametric equivalent. Both parts share identical current rating (5A), voltage ratings (480V AC / 80V DC), pole configuration (3-pole), mounting type (DIN Rail), and actuator type (Lever). The difference lies in the thermal-magnetic trip characteristic. Substitution is valid when the C-characteristic response curve is acceptable for the circuit protection application.

Q: What is the difference between the E, C, and D designations?

A: These letters indicate different thermal and magnetic trip characteristics within the V-EA series. Each characteristic provides different response curves for circuit protection. Selection depends on the specific load profile and protection requirements of the circuit being protected.

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

A: The 3E5UM carries CSA and UL508 certifications. The 3C5UM and 3D5UM carry CSA, UL508, and VDE certifications. If VDE certification is required by your application or regional standards, use the 3C5UM or 3D5UM.

Q: Can these breakers be mixed in the same DIN rail installation?

A: Yes. All three parts have identical mechanical interfaces (DIN Rail mounting, lever actuation, 3-pole configuration) and identical electrical ratings (5A, 480V AC, 80V DC). They can be installed in the same DIN rail assembly.

Q: Are there any packaging differences between these parts?

A: No. All three parts are supplied in Bulk packaging.

Q: Do all parts meet environmental compliance requirements?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected.