2D63UM 63A Circuit Breaker Equivalent & Substitute Parts

Part Overview

The 2D63UM is a thermal magnetic circuit breaker manufactured by Altech Corporation, rated for 63A at 480V AC and 60V DC. This DIN rail-mounted device features a lever actuator and is UL508 approved. The product is currently active in inventory with 662 units in stock. Equivalent substitute parts are identified based on matching electrical ratings, mechanical specifications, and approval certifications to ensure direct interchangeability in applications requiring thermal magnetic protection at this current and voltage specification.

Substiute Parts

2D63UM

Altech CorporationIn Stock: 7692D63UM Datasheet

Current PartRFQ

2C63UM

Altech CorporationIn Stock: 8352C63UM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 2D63UM are identified based on the following critical parameters that determine functional equivalence:

• Current Rating: 63A (exact match required)
• Voltage Rating - AC: 480V (exact match required)
• Voltage Rating - DC: 60V (exact match required)
• Breaker Type: Thermal Magnetic (exact match required)
• Mounting Type: DIN Rail (exact match required)
• Number of Poles: 2 (exact match required)
• Actuator Type: Lever (exact match required)
• Approval Agency: UL508 (exact match required)
• Series: V-EA (same product family)

The 2C63UM qualifies as a parametric equivalent because it matches all critical electrical and mechanical specifications. The primary distinction between the main part and substitute is the trip characteristic designation (D-curve versus C-curve), which reflects different thermal-magnetic response profiles while maintaining identical voltage, current, and physical specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the 2D63UM and 2C63UM are active products from Altech Corporation's V-EA series, carrying identical UL508 approval and ROHS3 compliance. Selection between these parts depends on application-specific requirements for trip characteristic response. The 2D63UM provides D-curve thermal-magnetic characteristics, while the 2C63UM provides C-curve characteristics. Both are suitable for 480V AC / 60V DC DIN rail installations requiring 63A protection with 2-pole lever-actuated switching. Inventory availability shows 792 units of 2C63UM and 662 units of 2D63UM in stock.

Frequently Asked Questions (FAQ)

Q: Can the 2C63UM directly replace the 2D63UM in my application?

A: Direct replacement is possible only if your application does not depend on the specific D-curve trip characteristic of the 2D63UM. Both parts share identical voltage ratings (480V AC / 60V DC), current rating (63A), mounting configuration (DIN Rail), pole count (2), and UL508 approval. The C-curve characteristic of the 2C63UM provides different thermal-magnetic response timing compared to the D-curve.

Q: What is the difference between D-curve and C-curve designations?

A: The letter designation indicates the trip characteristic curve, which defines the thermal and magnetic response profile of the breaker. This affects the time-current relationship and the point at which the breaker trips under fault conditions. Application requirements determine which curve is appropriate.

Q: Are both parts RoHS compliant?

A: Yes, both the 2D63UM and 2C63UM are ROHS3 compliant and carry identical environmental certifications.

Q: What is the packaging format for these parts?

A: Both parts are supplied in bulk packaging.

Q: Do these breakers include illumination features?

A: No, neither the 2D63UM nor the 2C63UM includes illumination. The illumination voltage field is not applicable for these models.