2C1UM 1A Circuit Breaker Equivalent & Substitute Parts

Part Overview

The 2C1UM is an active thermal magnetic circuit breaker manufactured by Altech Corporation, rated for 1A at 480V AC and 80V DC. This DIN rail-mounted device features a lever actuator and dual-pole configuration. The part is ROHS3 compliant and holds CSA, UL508, and VDE certifications. Equivalent substitute parts within the V-EA series share identical electrical and mechanical specifications, differing only in thermal trip characteristics (B, C, D, E, and G curve designations). Substitute parts are necessary when specific thermal response curves are required for application-specific protection requirements or when inventory availability necessitates alternative curve selections.

Key Parameters

Parameter	Value
Manufacturer Part Number	2C1UM
Manufacturer	Altech Corporation
Series	V-EA
Breaker Type	Thermal Magnetic
Current Rating	1A
Voltage Rating - AC	480V
Voltage Rating - DC	80V
Number of Poles	2
Mounting Type	DIN Rail
Actuator Type	Lever
Approval Agencies	CSA, UL508, VDE
RoHS Status	ROHS3 Compliant
Product Status	Active

Substitute Part Grouping Explanation

All substitute parts (2B1UM, 2D1UM, 2E1UM, 2G1UM) are parametric equivalents within the Altech V-EA series. Substitution is determined by the following criteria:

Mandatory Matching Parameters:

Current Rating: 1A
Voltage Rating - AC: 480V
Voltage Rating - DC: 80V
Number of Poles: 2
Mounting Type: DIN Rail
Actuator Type: Lever
Breaker Type: Thermal Magnetic
Series: V-EA
Packaging: Bulk

Differentiating Parameter:

Thermal Trip Characteristic: B, C, D, E, or G curve designation

All substitute parts maintain identical electrical and mechanical specifications. The thermal curve designation (B, C, D, E, G) defines the trip time response to overcurrent conditions and is the sole technical differentiator among these equivalents.

Parameter Comparison

Part Number	Thermal Curve	Current Rating	Voltage AC	Voltage DC	Poles	Mounting	Certifications	Inventory (Pcs)
2C1UM	C	1A	480V	80V	2	DIN Rail	CSA, UL508, VDE	835
2B1UM	B	1A	480V	80V	2	DIN Rail	CSA, UL508	865
2D1UM	D	1A	480V	80V	2	DIN Rail	CSA, UL508, VDE	692
2E1UM	E (3)	1A	480V	80V	2	DIN Rail	CSA, UL508	1006
2G1UM	G	1A	480V	80V	2	DIN Rail	CSA, UL508	1073

Engineering Selection Recommendations

Selection among 2C1UM and its substitutes is determined by application-specific thermal response requirements and certification compliance. The 2C1UM and 2D1UM both carry VDE certification in addition to CSA and UL508 approvals, providing broader international compliance coverage. The 2B1UM, 2E1UM, and 2G1UM hold CSA and UL508 certifications. All parts maintain active product status and ROHS3 compliance. Inventory availability ranges from 692 to 1073 units across the substitute group, with 2G1UM and 2E1UM offering the highest stock levels.

Frequently Asked Questions (FAQ)

Q: Can 2C1UM be directly replaced with any of the listed substitutes?

A: Direct replacement is possible only when the application permits thermal curve substitution. The thermal trip characteristic (B, C, D, E, G) must be compatible with the circuit protection requirements. All substitutes share identical electrical ratings, voltage specifications, and mechanical mounting characteristics.

Q: What is the difference between thermal curves B, C, D, E, and G?

A: Thermal curves define the trip time response to overcurrent conditions. Each curve designation represents a different thermal response profile. Selection depends on the specific load characteristics and protection strategy required by the application.

Q: Are all substitute parts ROHS3 compliant?

A: Yes, all parts in this group (2C1UM, 2B1UM, 2D1UM, 2E1UM, 2G1UM) are ROHS3 compliant.

Q: Do all substitutes carry the same certifications?

A: No. The 2C1UM and 2D1UM carry CSA, UL508, and VDE certifications. The 2B1UM, 2E1UM, and 2G1UM carry CSA and UL508 certifications. VDE certification availability should be verified if required by application standards.

Q: Can these parts be used interchangeably in the same circuit design?

A: Interchangeability is limited to applications where thermal curve substitution does not compromise circuit protection objectives. The identical electrical ratings (1A, 480V AC, 80V DC) and mechanical specifications (DIN rail mounting, 2-pole, lever actuator) ensure physical and electrical compatibility, but thermal response differences must be evaluated for each application.

Q: What packaging format is available?

A: All parts are supplied in bulk packaging.

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