3D32UM 32A Circuit Breaker Equivalent & Substitute Parts

Part Overview

The 3D32UM is a thermal magnetic circuit breaker manufactured by Altech Corporation, part of the V-EA series. This DIN rail-mounted breaker is designed for 32A applications at 480V AC and 60V DC with lever actuation and three poles. The product is active and widely available in inventory. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product series, enabling component interchangeability in applications where the specific thermal-magnetic characteristic curve designation is not critical to system performance.

Substiute Parts

3D32UM

Altech CorporationIn Stock: 12073D32UM Datasheet

Current PartRFQ

3C32UM

Altech CorporationIn Stock: 11053C32UM Datasheet

Parametric EquivalentRFQ

3E32UM

Altech CorporationIn Stock: 8753E32UM Datasheet

Parametric EquivalentRFQ

3Z32UM

Altech CorporationIn Stock: 11443Z32UM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The 3D32UM has three parametric equivalents within the Altech V-EA series: 3C32UM, 3E32UM, and 3Z32UM. Substitution is valid based on the following criteria:

Matching Parameters (Required for Substitution):

• Current Rating: 32A
• Voltage Rating - AC: 480V
• Voltage Rating - DC: 60V
• Breaker Type: Thermal Magnetic
• Number of Poles: 3
• Mounting Type: DIN Rail
• Actuator Type: Lever
• Series: V-EA
• Approval Agency: CSA, UL508

Variable Parameter (Distinguishes Each Part):

• Thermal-Magnetic Characteristic Curve Designation (D, C, E, Z)

All four parts share identical electrical ratings, mechanical mounting specifications, and regulatory certifications. The letter designation (C, D, E, Z) indicates different thermal-magnetic trip characteristics, which define the speed and sensitivity of fault detection. Parts are interchangeable when the specific characteristic curve is not mandated by system design requirements.

Parameter Comparison

Engineering Selection Recommendations

All four circuit breaker models (3D32UM, 3C32UM, 3E32UM, 3Z32UM) maintain active product status and carry identical CSA and UL508 certifications, confirming regulatory compliance across the group. Each part is ROHS3 compliant and REACH unaffected, meeting environmental standards. Selection between these parts depends on the specific thermal-magnetic characteristic curve required by the application design. When the characteristic curve designation is not specified as a critical requirement, any part from this group satisfies the electrical and mechanical interface requirements for 32A, 480V AC / 60V DC, three-pole DIN rail installations.

Frequently Asked Questions (FAQ)

Q: Can I substitute 3D32UM with 3C32UM, 3E32UM, or 3Z32UM?

A: Yes. All four parts share identical current ratings (32A), voltage ratings (480V AC / 60V DC), pole configuration (3-pole), mounting type (DIN Rail), and regulatory certifications (CSA, UL508). Substitution is valid when the thermal-magnetic characteristic curve is not specified as a design requirement.

Q: What is the difference between the D, C, E, and Z designations?

A: These letters indicate different thermal-magnetic trip characteristics that define the fault detection speed and sensitivity. The specific characteristic required depends on the application's load profile and protection strategy. Consult application documentation to determine if a specific characteristic is mandated.

Q: Are all substitute parts in the same packaging?

A: Yes. All four parts are supplied in bulk packaging, maintaining consistent handling and storage requirements.

Q: Do all substitute parts have the same inventory availability?

A: Inventory levels vary. 3D32UM has 1108 units, 3C32UM has 1032 units, 3E32UM has 808 units, and 3Z32UM has 1063 units in stock. Verify current availability with your supplier.

Q: Are there any compliance differences between these parts?

A: No. All four parts carry identical certifications (CSA, UL508), are ROHS3 compliant, and are REACH unaffected. Compliance status is uniform across the group.