3Z3UM 3A Circuit Breaker Z Characteristic DIN Rail

Part Overview

The 3Z3UM is a three-pole thermal magnetic circuit breaker manufactured by Altech Corporation, rated for 3A at 480V AC and 80V DC. This component is designed for DIN rail mounting with lever actuation and is currently in active production status. The 3Z3UM belongs to the V-EA series and carries CSA and UL508 approvals, making it suitable for industrial control and distribution applications. Alternative models within the same electrical and mechanical specification range are available to support supply chain flexibility and project requirements.

Substiute Parts

3Z3UM

Altech CorporationIn Stock: 10093Z3UM Datasheet

Current PartRFQ

3C3UM

Altech CorporationIn Stock: 7913C3UM Datasheet

Parametric EquivalentRFQ

3D3UM

Altech CorporationIn Stock: 10313D3UM Datasheet

Parametric EquivalentRFQ

3G3UM

Altech CorporationIn Stock: 7903G3UM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The 3Z3UM is substitutable with three alternative part numbers: 3C3UM, 3D3UM, and 3G3UM. All substitute parts maintain identical electrical and mechanical parameters across the following critical specifications:

• Current Rating: 3A
• Voltage Rating: 480V AC / 80V DC
• Breaker Type: Thermal Magnetic
• Number of Poles: 3
• Mounting Type: DIN Rail
• Actuator Type: Lever
• Series: V-EA
• RoHS Compliance: ROHS3 Compliant

The primary distinction between these part numbers lies in their thermal magnetic trip characteristics (Z, C, D, and G designations), which define the current threshold at which the breaker trips under fault conditions. All parts are manufactured by Altech Corporation and are approved by CSA and UL508 standards.

Parameter Comparison

Engineering Selection Recommendations

All four part numbers (3Z3UM, 3C3UM, 3D3UM, 3G3UM) are active products with identical electrical ratings and mechanical form factors. Selection between these alternatives should be based on the specific thermal magnetic trip characteristic required for the application:

The 3C3UM and 3D3UM variants carry additional VDE approval beyond the CSA and UL508 certifications present on the 3Z3UM and 3G3UM. This expanded certification may be required for applications subject to European regulatory frameworks or international standards compliance.

All parts maintain ROHS3 compliance and are manufactured to the same dimensional and mounting specifications, ensuring direct mechanical interchangeability within DIN rail enclosures.

Frequently Asked Questions (FAQ)

Q: Can the 3Z3UM be directly replaced with 3C3UM, 3D3UM, or 3G3UM?

A: Yes. All four part numbers share identical electrical ratings (3A, 480V AC, 80V DC), mechanical mounting (DIN rail, lever actuation), and pole configuration (3-pole). Direct substitution is supported from an electrical and mechanical standpoint.

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

A: These designations indicate different thermal magnetic trip characteristics that define the current threshold at which the breaker trips under fault conditions. The specific characteristic required depends on the application and circuit protection strategy.

Q: Are there any certification differences between these parts?

A: The 3C3UM and 3D3UM include VDE approval in addition to CSA and UL508 certifications. The 3Z3UM and 3G3UM carry CSA and UL508 approvals. Select the part with appropriate certifications for your regulatory jurisdiction.

Q: Do these parts have the same packaging and inventory availability?

A: All parts are supplied in bulk packaging. Current inventory levels vary: 3Z3UM (997 pcs), 3C3UM (781 pcs), 3D3UM (946 pcs), and 3G3UM (703 pcs).

Q: Are all these parts RoHS compliant?

A: Yes. All four part numbers are ROHS3 compliant and REACH unaffected.