Altech Corporation 2Z2UM 2A Circuit Breaker Z Char2 Equivalent & Substitute Parts

Part Overview

The 2Z2UM is a thermal magnetic circuit breaker manufactured by Altech Corporation, rated for 2A current with dual voltage capability (480V AC / 80V DC). This DIN rail-mounted breaker features a lever actuator and is approved by CSA and UL508. The product is active and ROHS3 compliant. Substitute parts become necessary when the primary part is unavailable, when inventory constraints require alternative sourcing, or when application-specific thermal characteristics (indicated by the character designation) require evaluation for compatibility with system requirements.

Key Parameters

Parameter	Value
Manufacturer	Altech Corporation
Series	V-EA
Breaker Type	Thermal Magnetic
Current Rating	2A
Voltage Rating - AC	480V
Voltage Rating - DC	80V
Mounting Type	DIN Rail
Actuator Type	Lever
Number of Poles	2
Approval Agency	CSA, UL508
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

All substitute parts listed for the 2Z2UM maintain identical electrical and mechanical parameters across the following critical specifications:

Current Rating: 2A
Voltage Rating: 480V AC / 80V DC
Breaker Type: Thermal Magnetic
Mounting Type: DIN Rail
Actuator Type: Lever
Number of Poles: 2
Series: V-EA
Packaging: Bulk

The primary distinction between the 2Z2UM and its substitutes lies in the thermal characteristic designation (Z, B, C, D, E, G). These character codes define the trip curve and thermal response profile of the breaker. Substitution is valid when the thermal characteristic of the alternative part is acceptable for the application's overcurrent protection requirements.

Parameter Comparison

Part Number	Manufacturer	Current Rating	Voltage AC	Voltage DC	Breaker Type	Mounting	Poles	Approval Agency	Inventory Status
2Z2UM	Altech Corporation	2A	480V	80V	Thermal Magnetic	DIN Rail	2	CSA, UL508	949 Pcs
2B2UM	Altech Corporation	2A	480V	80V	Thermal Magnetic	DIN Rail	2	CSA, UL508	1139 Pcs
2C2UM	Altech Corporation	2A	480V	80V	Thermal Magnetic	DIN Rail	2	CSA, UL508, VDE	875 Pcs
2D2UM	Altech Corporation	2A	480V	80V	Thermal Magnetic	DIN Rail	2	CSA, UL508, VDE	1151 Pcs
2E2UM	Altech Corporation	2A	480V	80V	Thermal Magnetic	DIN Rail	2	CSA, UL508	825 Pcs
2G2UM	Altech Corporation	2A	480V	80V	Thermal Magnetic	DIN Rail	2	CSA, UL508	897 Pcs

Engineering Selection Recommendations

All substitute parts are active products with ROHS3 compliance and REACH unaffected status. The 2C2UM and 2D2UM offer extended approval coverage with VDE certification in addition to CSA and UL508. Selection between 2Z2UM and its substitutes should be based on:

Thermal characteristic requirement for the application (Z, B, C, D, E, or G designation)
Regional compliance requirements (VDE certification availability in 2C2UM and 2D2UM)
Inventory availability and lead time considerations
System integration with existing breaker configurations

All parts share identical electrical ratings, mechanical form factor, and primary certifications (CSA, UL508), ensuring direct functional interchangeability when thermal characteristics are compatible.

Frequently Asked Questions (FAQ)

Q: Can I substitute 2Z2UM with 2B2UM or 2C2UM?

A: Yes, provided the thermal characteristic (trip curve) of the substitute part is acceptable for your application. All listed substitutes maintain identical current rating (2A), voltage ratings (480V AC / 80V DC), mounting type (DIN Rail), and pole configuration (2-pole). The character designation (Z, B, C, D, E, G) defines thermal response only.

Q: What is the difference between the thermal characteristics?

A: The character designation indicates the trip curve and thermal response profile of the breaker. This determines the overcurrent protection behavior. Substitution is valid only when the alternative thermal characteristic meets application requirements.

Q: Are 2C2UM and 2D2UM better choices than 2Z2UM?

A: The 2C2UM and 2D2UM provide additional VDE certification beyond the CSA and UL508 approvals present on all parts. Selection depends on regional compliance requirements and thermal characteristic compatibility with your system.

Q: What is the packaging format for all these parts?

A: All substitute parts are supplied in Bulk packaging, consistent with the 2Z2UM.

Q: Are all these parts RoHS compliant?

A: Yes, all listed parts are ROHS3 compliant and REACH unaffected.

Q: Which substitute has the highest inventory availability?

A: The 2D2UM has the highest inventory at 1151 pieces, followed by 2B2UM at 1139 pieces.

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