3D25UM 25A Circuit Breaker Equivalent & Substitute Parts

Part Overview

The 3D25UM is a thermal magnetic circuit breaker manufactured by Altech Corporation, rated for 25A at 480V AC and 80V DC. This DIN rail-mounted breaker features a lever actuator and three poles, designed for industrial electrical distribution applications. The product is currently active in inventory with 997 units in stock. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical specifications, and approval certifications to ensure direct interchangeability in circuit protection applications.

Substiute Parts

3D25UM

Altech CorporationIn Stock: 11013D25UM Datasheet

Current PartRFQ

3C25UM

Altech CorporationIn Stock: 8423C25UM Datasheet

Parametric EquivalentRFQ

3G25UM

Altech CorporationIn Stock: 11173G25UM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 3D25UM are identified as parametric equivalents within the Altech Corporation V-EA series. The substitution logic is based on matching the following critical parameters: current rating (25A), AC voltage rating (480V), DC voltage rating (80V), breaker type (thermal magnetic), number of poles (3), mounting configuration (DIN rail), and actuator mechanism (lever). All substitute parts maintain identical electrical and mechanical specifications, ensuring functional interchangeability. The primary distinction between the main part and substitutes lies in the breaker characteristic designation (D, C, and G channels), which defines the trip curve profile but does not affect the core electrical ratings or physical mounting requirements.

Parameter Comparison

Engineering Selection Recommendations

All three parts—3D25UM, 3C25UM, and 3G25UM—are active products with current manufacturing status and full compliance with industrial standards. The 3D25UM and 3C25UM both carry CSA, UL508, and VDE certifications, while the 3G25UM carries CSA and UL508 certifications. All parts are ROHS3 compliant and REACH unaffected. Selection between these substitutes should be based on application-specific trip curve requirements and certification scope. The 3G25UM offers the highest current inventory availability at 1031 units, while the 3D25UM maintains 997 units and the 3C25UM has 755 units in stock.

Frequently Asked Questions (FAQ)

Q: Can 3C25UM and 3G25UM be used interchangeably with 3D25UM? A: Yes, all three parts share identical electrical ratings (25A, 480V AC, 80V DC), mechanical specifications (3-pole, DIN rail mount, lever actuator), and series designation (V-EA). They are parametric equivalents and functionally interchangeable in circuit protection applications.

Q: What is the difference between the D, C, and G designations? A: The letter designations (D, C, G) indicate different breaker characteristic curves that define the trip response profile. However, all three maintain the same current rating, voltage rating, and physical mounting specifications.

Q: Are all substitute parts ROHS3 compliant? A: Yes, all three parts—3D25UM, 3C25UM, and 3G25UM—are ROHS3 compliant and REACH unaffected.

Q: Do all parts carry the same certifications? A: The 3D25UM and 3C25UM carry CSA, UL508, and VDE certifications. The 3G25UM carries CSA and UL508 certifications. Verify certification requirements for your specific application before selection.

Q: What is the packaging format for these parts? A: All three parts are supplied in bulk packaging as new original stock.