2E1UM Equivalent & Substitute Parts

Part Overview

The 2E1UM is a thermal magnetic circuit breaker manufactured by Altech Corporation, rated for 1A at 480V AC / 80V DC with lever actuation and DIN rail mounting. This component is classified as Active product status with full CSA and UL508 approvals. Substitute parts become necessary when the primary part is unavailable, when inventory constraints require alternative sourcing, or when application-specific thermal characteristics necessitate different trip curve selections within the same electrical specification envelope.

Substiute Parts

2E1UM

Altech CorporationIn Stock: 10312E1UM Datasheet

Current PartRFQ

2B1UM

Altech CorporationIn Stock: 9192B1UM Datasheet

Parametric EquivalentRFQ

2C1UM

Altech CorporationIn Stock: 8602C1UM Datasheet

Parametric EquivalentRFQ

2D1UM

Altech CorporationIn Stock: 7972D1UM Datasheet

Parametric EquivalentRFQ

2G1UM

Altech CorporationIn Stock: 11132G1UM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 2E1UM is determined by strict equivalence across the following parameters: current rating (1A), voltage ratings (480V AC / 80V DC), mounting type (DIN rail), actuator type (lever), pole configuration (2-pole), and series classification (V-EA). All substitute parts listed—2B1UM, 2C1UM, 2D1UM, and 2G1UM—maintain identical electrical and mechanical specifications. The primary distinction among these parts is the thermal trip curve characteristic, designated by the letter designation (B, C, D, G, or E). These curve types define the time-current response of the breaker but do not alter the fundamental electrical ratings or physical form factor. All substitutes are manufactured by Altech Corporation within the same V-EA series and carry equivalent regulatory approvals.

Parameter Comparison

Engineering Selection Recommendations

All five part numbers (2E1UM, 2B1UM, 2C1UM, 2D1UM, 2G1UM) are functionally interchangeable from an electrical and mechanical standpoint. Selection among these alternatives should be based on: (1) application-specific thermal trip curve requirements, which determine the time-current response characteristic designated by the letter suffix; (2) regulatory compliance scope, noting that 2C1UM and 2D1UM carry additional VDE certification; (3) current inventory availability; and (4) supply chain lead time considerations. All parts maintain ROHS3 compliance, REACH unaffected status, and identical form factor specifications for DIN rail installation.

Frequently Asked Questions (FAQ)

Q: Can 2B1UM, 2C1UM, 2D1UM, or 2G1UM be used as direct replacements for 2E1UM?

A: Yes. All parts share identical electrical ratings (1A, 480V AC, 80V DC), mechanical mounting (DIN rail, 2-pole, lever actuation), and regulatory approvals. The letter designation indicates thermal trip curve type only and does not affect compatibility with the electrical system or physical installation.

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

A: These letters represent distinct thermal trip curve characteristics that define the time-current response of the breaker. The specific curve type is determined by application requirements but does not alter voltage ratings, current capacity, or mounting specifications.

Q: Are there any approval differences among these parts?

A: 2C1UM and 2D1UM carry VDE certification in addition to CSA and UL508. The 2E1UM, 2B1UM, and 2G1UM carry CSA and UL508 approvals. Selection should account for regional or application-specific certification requirements.

Q: Do all parts use the same DIN rail mounting system?

A: Yes. All five part numbers are designed for identical DIN rail installation with no mechanical modification required for substitution.

Q: What inventory levels are available for each part?

A: Current stock levels are: 2E1UM (1006 pcs), 2G1UM (1073 pcs), 2B1UM (865 pcs), 2C1UM (835 pcs), and 2D1UM (692 pcs). Availability should be confirmed at time of procurement.