2Z40UM 40A Circuit Breaker Equivalent & Substitute Parts

Part Overview

The 2Z40UM is a thermal magnetic circuit breaker manufactured by Altech Corporation, rated for 40A at 480V AC and 60V DC. This DIN rail-mounted breaker with lever actuation is an active product with full CSA and UL508 certification. Equivalent substitute parts are available within the V-EA series to accommodate different application requirements, inventory availability, or specific thermal-magnetic characteristic curves needed for circuit protection design.

Substiute Parts

2Z40UM

Altech CorporationIn Stock: 9322Z40UM Datasheet

Current PartRFQ

2B40UM

Altech CorporationIn Stock: 8452B40UM Datasheet

Parametric EquivalentRFQ

2E40UM

Altech CorporationIn Stock: 9702E40UM Datasheet

Parametric EquivalentRFQ

2G40UM

Altech CorporationIn Stock: 11172G40UM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The 2Z40UM has three parametric equivalents within the Altech V-EA series: 2B40UM, 2E40UM, and 2G40UM. These parts are interchangeable based on the following criteria:

Identical Parameters Across All Substitutes:

• Current Rating: 40A
• Voltage Rating - AC: 480V
• Voltage Rating - DC: 60V
• Breaker Type: Thermal Magnetic
• Mounting Type: DIN Rail
• Actuator Type: Lever
• Number of Poles: 2
• Series: V-EA
• Approval Agency: CSA, UL508
• Packaging: Bulk
• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

Differentiating Factor: The substitutes differ only in their thermal-magnetic characteristic designation (Z, B, E, or G channel), which defines the trip curve behavior. Selection between these parts depends on the specific thermal-magnetic response required for the application circuit.

Parameter Comparison

Engineering Selection Recommendations

All four parts—2Z40UM, 2B40UM, 2E40UM, and 2G40UM—are active products with identical electrical and mechanical specifications. Each carries CSA and UL508 certification, confirming compliance with North American safety standards. Selection between these parts is determined solely by the required thermal-magnetic characteristic curve (Z, B, E, or G channel) for the specific circuit protection application. Inventory availability ranges from 735 to 1028 pieces across the group, supporting flexible procurement strategies.

Frequently Asked Questions (FAQ)

Q: Can 2B40UM, 2E40UM, and 2G40UM be used interchangeably with 2Z40UM?

A: These parts are parametric equivalents with identical electrical ratings, voltage specifications, and mechanical mounting. Interchangeability depends on whether the application requires the specific thermal-magnetic characteristic of the Z channel. If the circuit design specifies a different channel (B, E, or G), the corresponding part must be used.

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

A: These letters denote different thermal-magnetic trip curve characteristics within the V-EA series. The specific curve determines the breaker's response to overcurrent and fault conditions. Selection is based on circuit protection requirements, not on electrical or mechanical compatibility.

Q: Are all these parts certified for the same applications?

A: Yes. All four parts carry identical CSA and UL508 certifications and are rated for 480V AC and 60V DC operation on DIN rail installations with 2-pole, lever-actuated configurations.

Q: What is the packaging format for these parts?

A: All parts are supplied in bulk packaging as specified by Altech Corporation.

Q: Are these parts RoHS and REACH compliant?

A: Yes. All four parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.