3Z2UM 2A Circuit Breaker Equivalent & Substitute Parts

Part Overview

The 3Z2UM is a 2A thermal magnetic circuit breaker manufactured by Altech Corporation, designed for DIN rail mounting with lever actuation. This component is classified as Active product status and is ROHS3 compliant. Substitute parts become necessary when the primary part number is unavailable due to inventory constraints, supply chain disruptions, or when alternative thermal magnetic characteristics better suit specific application requirements within the same electrical and mechanical parameter envelope.

Substiute Parts

3Z2UM

Altech CorporationIn Stock: 7243Z2UM Datasheet

Current PartRFQ

3D2UM

Altech CorporationIn Stock: 10273D2UM Datasheet

Parametric EquivalentRFQ

3E2UM

Altech CorporationIn Stock: 8833E2UM Datasheet

Parametric EquivalentRFQ

3G2UM

Altech CorporationIn Stock: 9553G2UM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The 3Z2UM circuit breaker can be substituted with the following Altech Corporation part numbers: 3D2UM, 3E2UM, and 3G2UM. These substitutes are parametric equivalents that maintain identical electrical and mechanical specifications across all critical selection criteria. The substitution logic is based strictly on the following allowed parameters:

• Current Rating: 2A (identical across all parts)
• Voltage Rating - AC: 480 V (identical across all parts)
• Voltage Rating - DC: 80 V (identical across all parts)
• Breaker Type: Thermal Magnetic (identical across all parts)
• Mounting Type: DIN Rail (identical across all parts)
• Actuator Type: Lever (identical across all parts)
• Number of Poles: 3 (identical across all parts)
• Series: V-EA (identical across all parts)
• Packaging: Bulk (identical across all parts)

The differences between these part numbers reflect variations in thermal magnetic trip characteristics (Z, D, E, and G designations), which are interchangeable within the same application envelope when the electrical and mechanical parameters remain constant.

Parameter Comparison

Engineering Selection Recommendations

All four part numbers (3Z2UM, 3D2UM, 3E2UM, 3G2UM) maintain Active product status and are ROHS3 compliant. The 3D2UM variant carries additional VDE approval certification beyond the CSA and UL508 certifications common to all parts. Selection between these equivalents should be based on application-specific thermal magnetic trip curve requirements and regional compliance mandates. All parts are suitable for direct substitution within circuits designed for 2A, 480 V AC / 80 V DC operation on DIN rail installations.

Frequently Asked Questions (FAQ)

Q: Can 3D2UM, 3E2UM, and 3G2UM be used interchangeably with 3Z2UM?

A: Yes. These part numbers are parametric equivalents with identical current ratings (2A), voltage ratings (480 V AC / 80 V DC), breaker type (thermal magnetic), mounting configuration (DIN rail), and pole count (3). The letter designations (Z, D, E, G) indicate thermal magnetic trip characteristics that remain within the same application envelope.

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

A: These designations represent different thermal magnetic trip curve characteristics within the V-EA series. The electrical and mechanical parameters remain constant across all variants, making them suitable substitutes when the application requires the specific trip curve behavior of each designation.

Q: Are there any compliance differences between these parts?

A: The 3D2UM carries VDE approval in addition to CSA and UL508 certifications. The 3Z2UM, 3E2UM, and 3G2UM are certified by CSA and UL508. All parts are ROHS3 compliant and maintain Active product status.

Q: What packaging is available for these circuit breakers?

A: All four part numbers are supplied in Bulk packaging.

Q: Can these parts be used in applications outside 480 V AC / 80 V DC specifications?

A: No. These circuit breakers are rated specifically for 480 V AC and 80 V DC operation. Use only in applications within these voltage specifications.