2G25UM 25A Circuit Breaker Equivalent & Substitute Parts

Part Overview

The 2G25UM 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 part of the V-EA series and maintains active product status with full CSA and UL508 approvals. Equivalent substitute parts are available within the same series to accommodate supply chain requirements, design variations, or regional availability constraints.

Substiute Parts

2G25UM

Altech CorporationIn Stock: 12382G25UM Datasheet

Current PartRFQ

2B25UM

Altech CorporationIn Stock: 8412B25UM Datasheet

Parametric EquivalentRFQ

2C25UM

Altech CorporationIn Stock: 7782C25UM Datasheet

Parametric EquivalentRFQ

2D25UM

Altech CorporationIn Stock: 7582D25UM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The 2G25UM circuit breaker has three parametric equivalents within the Altech V-EA series: 2B25UM, 2C25UM, and 2D25UM. These parts are interchangeable based on the following criteria:

All substitute parts share identical electrical and mechanical specifications:

• Current rating: 25A
• Voltage ratings: 480V AC / 80V DC
• Breaker type: Thermal Magnetic
• Mounting: DIN Rail
• Actuator: Lever
• Pole configuration: 2-pole
• Series designation: V-EA
• Compliance: ROHS3 Compliant, REACH Unaffected

The primary distinction between these parts lies in their thermal-magnetic trip characteristic designations (G, B, C, D), which define the specific trip curve behavior. These designations allow selection based on application-specific load characteristics and protection requirements while maintaining full electrical and mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

All four parts (2G25UM, 2B25UM, 2C25UM, 2D25UM) are active products with full compliance certifications. The 2B25UM, 2C25UM, and 2D25UM variants include additional VDE approval beyond the base CSA and UL508 certifications present on the 2G25UM.

Selection between these equivalents should be based on:

• Application-specific trip curve requirements (G, B, C, or D characteristic)
• Regional compliance requirements (VDE certification availability)
• Supply chain and inventory availability
• System design specifications for load protection behavior

All parts maintain identical electrical ratings, mechanical form factors, and RoHS3 compliance status, ensuring direct substitution capability within the specified parameters.

Frequently Asked Questions (FAQ)

Q: Are 2B25UM, 2C25UM, and 2D25UM direct substitutes for 2G25UM?

A: Yes, within the constraints of application-specific trip curve requirements. All parts share identical current ratings (25A), voltage ratings (480V AC / 80V DC), mounting type (DIN Rail), pole configuration (2-pole), and breaker technology (Thermal Magnetic). The letter designations (G, B, C, D) indicate different thermal-magnetic trip characteristics. Substitution is valid when the application permits the alternative trip curve.

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

A: These letters denote distinct thermal-magnetic trip curve characteristics that define the breaker's response to overcurrent conditions. Each characteristic is engineered for specific load types and protection requirements. Selection depends on the protected circuit's load profile and protection strategy.

Q: Do all substitute parts have the same certifications?

A: The 2G25UM carries CSA and UL508 approvals. The 2B25UM, 2C25UM, and 2D25UM variants include CSA, UL508, and VDE approvals. If VDE certification is required for your application, the B, C, or D variants are specified options.

Q: Are these parts compatible with the same DIN rail systems?

A: Yes. All four parts use identical DIN rail mounting specifications and lever actuator configurations, ensuring mechanical compatibility with standard DIN rail enclosures and control panels.

Q: What is the packaging format for these parts?

A: All parts are supplied in bulk packaging format.

Q: Are these parts RoHS compliant?

A: Yes. All four parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.