1D30UM 30A Circuit Breaker - Equivalent & Substitute Parts

Part Overview

The 1D30UM is a thermal magnetic circuit breaker manufactured by Altech Corporation, rated for 30A at 480V AC and 24V DC. This DIN Rail-mounted breaker is designed for industrial control and distribution applications requiring reliable overcurrent protection. The product is currently active in production with full CSA and UL508 certification. Substitute parts are identified when equivalent electrical and mechanical parameters are required for system compatibility, inventory management, or supply chain continuity.

Substiute Parts

1D30UM

Altech CorporationIn Stock: 6911D30UM Datasheet

Current PartRFQ

1B30UM

Altech CorporationIn Stock: 10121B30UM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The 1B30UM is identified as a parametric equivalent to the 1D30UM based on strict alignment of the following critical parameters:

• Current Rating: 30A (identical)
• Voltage Rating - AC: 480V (identical)
• Voltage Rating - DC: 24V (identical)
• Mounting Type: DIN Rail (identical)
• Breaker Type: Thermal Magnetic (identical)
• Actuator Type: Lever (identical)
• Number of Poles: 1 (identical)
• Approval Agency: CSA, UL508 (identical)
• Series: V-EA (identical)
• RoHS Status: ROHS3 Compliant (identical)

Both parts share the same base product designation within the V-EA series and maintain full electrical and mechanical compatibility for direct substitution in applications requiring 30A thermal magnetic protection at the specified voltage levels.

Parameter Comparison

Engineering Selection Recommendations

Both the 1D30UM and 1B30UM are active production parts from Altech Corporation's V-EA series, each carrying CSA and UL508 certifications. Selection between these parts is based on availability and inventory status rather than electrical or mechanical performance differences. The 1D30UM maintains 668 units in stock, while the 1B30UM has 917 units available. Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for industrial control applications. Direct substitution is permissible in any application where the 1D30UM is specified, provided the installation maintains DIN Rail mounting configuration and the 30A thermal magnetic protection requirement.

Frequently Asked Questions (FAQ)

Q: Can the 1B30UM replace the 1D30UM in an existing installation?

A: Yes. Both parts are identical in all critical electrical and mechanical parameters: 30A current rating, 480V AC / 24V DC voltage ratings, thermal magnetic protection type, lever actuation, single-pole configuration, and DIN Rail mounting. Both carry CSA and UL508 certification.

Q: Are there any differences in performance or trip characteristics between these parts?

A: No differences are specified in the provided parameters. Both parts are thermal magnetic breakers within the same V-EA series from Altech Corporation with identical ratings and certifications.

Q: What is the difference between the 1D30UM and 1B30UM designations?

A: The designations reflect different product variants within the V-EA series. The "D" and "B" characters distinguish the variants, but all specified electrical and mechanical parameters remain equivalent for substitution purposes.

Q: Are both parts RoHS compliant?

A: Yes. Both the 1D30UM and 1B30UM are ROHS3 compliant and REACH unaffected.

Q: Can these parts be used interchangeably in new designs?

A: Yes. Both parts meet identical specifications for 30A thermal magnetic protection at 480V AC / 24V DC with DIN Rail mounting and full industrial certifications. Either part is suitable for new designs requiring these parameters.