3E25UM 25A Circuit Breaker Equivalent & Substitute Parts

Part Overview

The 3E25UM is a thermal magnetic circuit breaker manufactured by Altech Corporation, rated for 25A at 480V AC and 80V DC. This DIN rail-mounted breaker is designed for three-pole applications with lever actuation and is currently in active production status. Finding equivalent substitute parts is necessary to ensure supply chain flexibility, manage inventory optimization, and maintain operational continuity when the primary part becomes unavailable or when alternative sourcing is required for cost or logistics considerations.

Substiute Parts

3E25UM

Altech CorporationIn Stock: 8043E25UM Datasheet

Current PartRFQ

3C25UM

Altech CorporationIn Stock: 8423C25UM Datasheet

Parametric EquivalentRFQ

3D25UM

Altech CorporationIn Stock: 11013D25UM Datasheet

Parametric EquivalentRFQ

3G25UM

Altech CorporationIn Stock: 11173G25UM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3E25UM is determined by strict equivalence across the following critical parameters:

• Current Rating: 25A (exact match required)
• Voltage Rating - AC: 480V (exact match required)
• Voltage Rating - DC: 80V (exact match required)
• Number of Poles: 3 (exact match required)
• Breaker Type: Thermal Magnetic (exact match required)
• Mounting Type: DIN Rail (exact match required)
• Actuator Type: Lever (exact match required)
• Series: V-EA (exact match required)

All substitute parts listed below meet these criteria without exception. Substitutes differ only in their base product designation (E, C, D, or G character designation) and approval agency certifications, which do not affect electrical or mechanical compatibility within the specified parameter set.

Parameter Comparison

Engineering Selection Recommendations

All four parts—3E25UM, 3C25UM, 3D25UM, and 3G25UM—are active products from Altech Corporation within the V-EA series and are fully interchangeable based on electrical and mechanical specifications. Selection between these parts should be based on the following factors:

Certification Requirements: Parts 3C25UM and 3D25UM carry additional VDE certification beyond CSA and UL508. If your application or regional requirements mandate VDE compliance, select 3C25UM or 3D25UM. If only CSA and UL508 certifications are required, any of the four parts are suitable.

Inventory Availability: Current stock levels are 724 pcs (3E25UM), 755 pcs (3C25UM), 997 pcs (3D25UM), and 1031 pcs (3G25UM). Select based on immediate availability needs and supply chain logistics.

RoHS and REACH Compliance: All parts are ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements uniformly.

Frequently Asked Questions (FAQ)

Q: Can 3C25UM, 3D25UM, or 3G25UM be used as direct replacements for 3E25UM in existing installations?

A: Yes. All four parts are electrically and mechanically identical across all critical parameters: 25A current rating, 480V AC / 80V DC voltage ratings, three-pole configuration, DIN rail mounting, lever actuation, and thermal magnetic protection. Direct substitution is permissible without circuit modification or recalibration.

Q: What is the difference between the E, C, D, and G designations in the part numbers?

A: The letter designation (E, C, D, G) identifies different product variants within the V-EA series. These designations do not affect electrical performance or mechanical compatibility. The variants differ in approval agency certifications: 3C25UM and 3D25UM include VDE certification, while 3E25UM and 3G25UM do not.

Q: Are there any voltage or current derating considerations when substituting between these parts?

A: No. All parts are rated identically at 25A, 480V AC, and 80V DC. No derating or adjustment is required when substituting between any of these four part numbers.

Q: Which part should I select if my application requires VDE certification?

A: Select either 3C25UM or 3D25UM, both of which carry CSA, UL508, and VDE certifications. These parts are suitable for applications requiring European compliance standards.

Q: Are all parts available in the same packaging format?

A: Yes. All four parts are supplied in bulk packaging, ensuring consistent handling and storage requirements across substitutions.

Q: What is the HTSUS and ECCN classification for these parts?

A: All four parts share identical trade classifications: HTSUS 8536.20.0020 and ECCN EAR99, ensuring consistent customs and export compliance across substitutions.