2D1UM 1A Circuit Breaker Equivalent & Substitute Parts

Part Overview

The 2D1UM is a thermal magnetic circuit breaker manufactured by Altech Corporation, rated for 1A at 480V AC and 80V DC. This DIN rail-mounted breaker features a lever actuator and dual-pole configuration, designed for industrial control and distribution applications. The part is active in production with full stock availability. Equivalent substitute parts are necessary when the primary part is unavailable, when specific thermal-magnetic characteristics (D-curve) are not required for the application, or when alternative approval certifications better suit regional compliance requirements.

Substiute Parts

2D1UM

Altech CorporationIn Stock: 7972D1UM Datasheet

Current PartRFQ

2B1UM

Altech CorporationIn Stock: 9192B1UM Datasheet

Parametric EquivalentRFQ

2C1UM

Altech CorporationIn Stock: 8602C1UM Datasheet

Parametric EquivalentRFQ

2E1UM

Altech CorporationIn Stock: 10312E1UM Datasheet

Parametric EquivalentRFQ

2G1UM

Altech CorporationIn Stock: 11132G1UM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

All substitute parts for the 2D1UM maintain identical electrical and mechanical parameters across the following critical criteria:

• Current Rating: 1A
• Voltage Rating: 480V AC / 80V DC
• Breaker Type: Thermal Magnetic
• Number of Poles: 2
• Mounting Type: DIN Rail
• Actuator Type: Lever
• Series: V-EA
• RoHS Status: ROHS3 Compliant

The substitute parts differ only in their thermal-magnetic trip characteristics, designated by the letter designation in the part number (B, C, D, E, G). These designations represent different thermal-magnetic curves that determine the breaker's response to overcurrent conditions. Selection between these variants depends on the specific load characteristics and protection requirements of the application, not on electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts are active products with full regulatory compliance. The 2D1UM, 2C1UM, and 2B1UM hold VDE certification in addition to CSA and UL508 approvals, providing broader international compliance coverage. The 2E1UM and 2G1UM variants maintain CSA and UL508 certifications. Selection should be based on the specific thermal-magnetic curve requirement for the protected circuit and regional certification requirements. All parts are ROHS3 compliant and suitable for direct substitution in applications where the thermal-magnetic characteristic is interchangeable.

Frequently Asked Questions (FAQ)

Q: Can I substitute any of these part numbers for the 2D1UM?

A: Yes, all listed parts are parametric equivalents with identical electrical ratings (1A, 480V AC, 80V DC), mechanical configuration (2-pole, DIN rail, lever actuator), and series designation (V-EA). The difference lies in the thermal-magnetic trip curve, which must be compatible with your application's protection requirements.

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

A: These letters represent different thermal-magnetic trip characteristics that define how quickly the breaker responds to overcurrent conditions. The specific curve selection depends on the load type and protection strategy of your circuit.

Q: Are all these parts in stock?

A: Yes. Current inventory levels are: 2D1UM (692 pcs), 2B1UM (865 pcs), 2C1UM (835 pcs), 2E1UM (1006 pcs), and 2G1UM (1073 pcs).

Q: Do all substitute parts have the same certifications?

A: The 2D1UM, 2C1UM hold CSA, UL508, and VDE certifications. The 2B1UM, 2E1UM, and 2G1UM hold CSA and UL508 certifications. Select based on your regional compliance requirements.

Q: Is the packaging identical across all substitute parts?

A: Yes. All parts are supplied in bulk packaging and are suitable for direct integration into existing procurement and assembly processes.