3G2UM Thermal Magnetic Circuit Breaker - Equivalent & Substitute Parts

Part Overview

The 3G2UM is a three-pole thermal magnetic circuit breaker manufactured by Altech Corporation, rated for 2A at 480V AC / 80V DC with lever actuation and DIN Rail mounting. This component is classified as Active product status with full compliance to CSA and UL508 standards. Substitute parts become necessary when the primary part experiences supply constraints, extended lead times, or when design flexibility permits selection from equivalent alternatives within the V-EA series that maintain identical electrical and mechanical specifications.

Substiute Parts

3G2UM

Altech CorporationIn Stock: 9553G2UM Datasheet

Current PartRFQ

3D2UM

Altech CorporationIn Stock: 10273D2UM Datasheet

Parametric EquivalentRFQ

3E2UM

Altech CorporationIn Stock: 8833E2UM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 3G2UM are determined by strict equivalence across all critical electrical and mechanical parameters. The substitution logic is based on the following criteria:

• Current Rating: 2A (identical across all substitutes)
• Voltage Rating - AC: 480V (identical across all substitutes)
• Voltage Rating - DC: 80V (identical across all substitutes)
• Breaker Type: Thermal Magnetic (identical across all substitutes)
• Number of Poles: 3 (identical across all substitutes)
• Actuator Type: Lever (identical across all substitutes)
• Mounting Type: DIN Rail (identical across all substitutes)
• Series: V-EA (identical across all substitutes)
• Packaging: Bulk (identical across all substitutes)

The 3G2UM qualifies as parametrically equivalent to 3D2UM and 3E2UM. These parts differ only in their base product designation (G, D, and E character designations) but maintain complete electrical and mechanical compatibility within the V-EA series. All three parts are manufactured by Altech Corporation and carry Active product status.

Parameter Comparison

Engineering Selection Recommendations

All three parts—3G2UM, 3D2UM, and 3E2UM—are suitable for direct substitution based on electrical and mechanical parameter equivalence. Selection among these alternatives should be determined by:

• Inventory availability and lead time requirements
• Compliance certifications required for the application (3D2UM includes additional VDE certification)
• Current stock levels (3D2UM: 1005 pcs, 3G2UM: 935 pcs, 3E2UM: 809 pcs)

All parts maintain Active product status and full ROHS3 compliance, ensuring long-term availability and regulatory conformance.

Frequently Asked Questions (FAQ)

Q: Can 3D2UM be used as a direct replacement for 3G2UM?

A: Yes. Both parts are parametrically equivalent with identical current rating (2A), voltage ratings (480V AC / 80V DC), pole configuration (3-pole), actuator type (lever), and mounting method (DIN Rail). The only difference is the character designation within the part number. 3D2UM includes additional VDE certification.

Q: What is the difference between 3G2UM, 3D2UM, and 3E2UM?

A: These parts are electrically and mechanically identical. The character designations (G, D, E) represent different product variants within the V-EA series. All three are manufactured by Altech Corporation and carry identical electrical specifications and approval certifications (CSA, UL508), with 3D2UM additionally certified by VDE.

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

A: Yes. All three parts are supplied in Bulk packaging, maintaining consistency across procurement and inventory management.

Q: Which part should be selected if VDE certification is required?

A: The 3D2UM is the appropriate selection, as it carries CSA, UL508, and VDE certifications, whereas 3G2UM and 3E2UM carry only CSA and UL508 certifications.

Q: Do these parts have identical DIN Rail mounting specifications?

A: Yes. All three parts use identical DIN Rail mounting and are mechanically interchangeable in this regard.