2Z20UM 20A Thermal Magnetic Circuit Breaker Equivalent & Substitute Parts

Part Overview

The 2Z20UM is a 20A thermal magnetic circuit breaker manufactured by Altech Corporation, part of the V-EA series. This DIN rail-mounted device is designed for 480V AC / 80V DC applications with a 2-pole lever actuator configuration. The product is active and widely stocked (1011 units in inventory), holding CSA and UL508 certifications for industrial control applications. Equivalent substitute parts are available within the same V-EA series when the 2Z20UM is unavailable or when alternative channel designations are required for system integration.

Substiute Parts

2Z20UM

Altech CorporationIn Stock: 10232Z20UM Datasheet

Current PartRFQ

2C20UM

Altech CorporationIn Stock: 8632C20UM Datasheet

Parametric EquivalentRFQ

2D20UM

Altech CorporationIn Stock: 11862D20UM Datasheet

Parametric EquivalentRFQ

2E20UM

Altech CorporationIn Stock: 11642E20UM Datasheet

Parametric EquivalentRFQ

2G20UM

Altech CorporationIn Stock: 11942G20UM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

All substitute parts for the 2Z20UM maintain identical electrical and mechanical specifications across the following critical parameters:

• Current Rating: 20A
• Voltage Rating: 480V AC / 80V DC
• Breaker Type: Thermal Magnetic
• Number of Poles: 2
• Actuator Type: Lever
• Mounting Type: DIN Rail
• Series: V-EA
• Manufacturer: Altech Corporation

The substitute parts differ only in their channel designation prefix (C, D, E, or G), which identifies internal circuit configuration variants within the V-EA series. These designations do not affect electrical performance or mechanical compatibility. All substitute parts are packaged in bulk format and maintain ROHS3 compliance and EAR99 export classification.

Parameter Comparison

Engineering Selection Recommendations

All five circuit breaker models (2Z20UM, 2C20UM, 2D20UM, 2E20UM, 2G20UM) are functionally equivalent for applications requiring 20A thermal magnetic protection at 480V AC / 80V DC with 2-pole DIN rail mounting. Selection between these parts should be based on:

1. Channel designation requirements specified in system documentation
2. Certification scope: 2C20UM and 2D20UM include VDE certification in addition to CSA and UL508, providing broader European compliance coverage
3. Inventory availability: 2D20UM offers the highest stock level (1148 units), followed by 2E20UM (1137 units) and 2G20UM (1118 units)
4. All parts maintain active product status and ROHS3 compliance

Frequently Asked Questions (FAQ)

Q: Can 2C20UM, 2D20UM, 2E20UM, or 2G20UM be used as direct replacements for 2Z20UM?

A: Yes. All parts share identical electrical ratings (20A, 480V AC, 80V DC), mechanical configuration (2-pole, lever actuator, DIN rail mount), and thermal magnetic protection characteristics. The channel designation prefix does not affect electrical performance or physical compatibility.

Q: What is the difference between the channel designations (Z, C, D, E, G)?

A: Channel designations identify internal circuit configuration variants within the V-EA series. These designations do not affect electrical specifications, voltage ratings, current capacity, or mechanical mounting. Selection is based on system documentation requirements.

Q: Do all substitute parts have the same certifications?

A: 2C20UM and 2D20UM include VDE certification in addition to CSA and UL508. The 2Z20UM, 2E20UM, and 2G20UM hold CSA and UL508 certifications. All parts meet the same electrical safety standards for their respective certification scopes.

Q: Are there any compatibility issues when substituting between these part numbers?

A: No compatibility issues exist. All parts are mechanically identical for DIN rail mounting and electrically equivalent for circuit protection applications. Physical dimensions, terminal configurations, and mounting footprints are identical across all five models.

Q: Which substitute part should I select if inventory is a concern?

A: 2D20UM has the highest current inventory (1148 units), followed by 2E20UM (1137 units) and 2G20UM (1118 units). All three are suitable direct replacements for 2Z20UM based on electrical and mechanical equivalence.