1Z2UM 2A Circuit Breaker Z Char Equivalent & Substitute Parts

Part Overview

The 1Z2UM is a thermal magnetic circuit breaker manufactured by Altech Corporation, rated for 2A at 277V AC / 42V DC with lever actuation and DIN Rail mounting. This single-pole breaker is part of the V-EA series and holds Active product status with CSA and UL508 approvals. Equivalent and substitute parts are identified based on matching electrical ratings, mechanical specifications, and regulatory certifications to ensure direct interchangeability in DIN Rail applications.

Substiute Parts

1Z2UM

Altech CorporationIn Stock: 8371Z2UM Datasheet

Current PartRFQ

1E2UM

Altech CorporationIn Stock: 12251E2UM Datasheet

Parametric EquivalentRFQ

1G2UM

Altech CorporationIn Stock: 8061G2UM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 1Z2UM are identified as parametric equivalents within the Altech Corporation V-EA series. The substitution logic is based on the following critical parameters that must remain constant:

• Current Rating: 2A
• Voltage Rating - AC: 277V
• Voltage Rating - DC: 42V
• Breaker Type: Thermal Magnetic
• Mounting Type: DIN Rail
• Actuator Type: Lever
• Number of Poles: 1
• Approval Agency: CSA, UL508
• RoHS Status: ROHS3 Compliant

The identified substitutes (1E2UM and 1G2UM) maintain all critical electrical and mechanical parameters, differing only in their base product designation (Z, E, and G character designations). All three parts are manufactured by Altech Corporation, carry Active product status, and are certified to the same regulatory standards.

Parameter Comparison

Engineering Selection Recommendations

All three parts (1Z2UM, 1E2UM, and 1G2UM) are suitable for direct substitution based on identical electrical ratings, mechanical specifications, and regulatory compliance. Selection among these equivalents may be determined by inventory availability and lead time considerations. The 1E2UM currently has 1163 units in stock, the 1G2UM has 735 units, and the 1Z2UM has 786 units available. All parts maintain Active product status and carry CSA and UL508 certifications, confirming compliance with applicable safety standards for DIN Rail circuit breaker applications.

Frequently Asked Questions (FAQ)

Q: Can 1E2UM and 1G2UM be used interchangeably with 1Z2UM?

A: Yes. All three parts share identical electrical ratings (2A, 277V AC, 42V DC), mechanical specifications (DIN Rail mounting, lever actuation, single-pole configuration), and regulatory certifications (CSA, UL508). They are parametric equivalents within the V-EA series.

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

A: The character designations (Z, E, G) represent different base product numbers within the Altech Corporation V-EA series. The provided data does not specify functional or performance differences between these designations; all three maintain identical electrical and mechanical parameters.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. The 1Z2UM, 1E2UM, and 1G2UM are all ROHS3 compliant and carry identical environmental compliance status.

Q: What certifications apply to these circuit breakers?

A: All three parts are certified by CSA and UL508, meeting applicable safety standards for industrial control equipment and DIN Rail mounted devices.

Q: Does packaging differ between the main part and substitutes?

A: No. All parts are supplied in Bulk packaging.