2C03UM Circuit Breaker - Equivalent & Substitute Parts

Part Overview

The 2C03UM is a thermal magnetic circuit breaker manufactured by Altech Corporation, rated for 300mA at 480V AC and 80V DC. This DIN rail-mounted breaker features a lever actuator and is designed for two-pole applications. The product is currently active and in stock with 1,075 units available. Circuit breakers of this specification are essential components in electrical distribution systems where overcurrent protection and thermal-magnetic trip characteristics are required for reliable system operation.

Substiute Parts

2C03UM

Altech CorporationIn Stock: 11252C03UM Datasheet

Current PartRFQ

2E03UM

Altech CorporationIn Stock: 8482E03UM Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The 2E03UM is identified as a parametric equivalent to the 2C03UM based on the following matching electrical and mechanical specifications:

• Current Rating: 300mA (identical)
• Voltage Rating - AC: 480V (identical)
• Voltage Rating - DC: 80V (identical)
• Breaker Type: Thermal Magnetic (identical)
• Mounting Type: DIN Rail (identical)
• Actuator Type: Lever (identical)
• Number of Poles: 2 (identical)
• Series: V-EA (identical)
• Manufacturer: Altech Corporation (identical)

Both parts share the same base product number designation (2C03 and 2E03 respectively) within the V-EA series, confirming their functional equivalence for applications requiring these specific electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the 2C03UM and 2E03UM are active products from Altech Corporation with ROHS3 compliance and current inventory availability. The 2C03UM carries CSA, UL508, and VDE approvals, while the 2E03UM carries CSA and UL508 approvals. Selection between these parts should be based on specific regulatory requirements for your application. If VDE certification is mandatory, the 2C03UM is the required choice. For applications requiring only CSA and UL508 compliance, either part is suitable. Both parts are thermally and electrically equivalent for 300mA, 480V AC / 80V DC two-pole DIN rail applications.

Frequently Asked Questions (FAQ)

Q: What makes the 2E03UM a suitable substitute for the 2C03UM?

A: The 2E03UM matches all critical electrical and mechanical parameters of the 2C03UM: identical current rating (300mA), voltage ratings (480V AC / 80V DC), thermal magnetic trip characteristics, DIN rail mounting, lever actuation, and two-pole configuration. Both are manufactured by Altech Corporation within the V-EA series.

Q: Are there any differences in regulatory approvals between these parts?

A: Yes. The 2C03UM includes VDE certification in addition to CSA and UL508 approvals. The 2E03UM carries CSA and UL508 approvals only. Verify that your application requirements do not mandate VDE compliance before selecting the 2E03UM.

Q: Can these parts be used interchangeably in existing installations?

A: Both parts are DIN rail-mounted with identical electrical specifications and mechanical interfaces. Interchangeability depends on whether your system requires the additional VDE certification provided by the 2C03UM.

Q: What is the inventory status for each part?

A: The 2C03UM has 1,075 units in stock, while the 2E03UM has 763 units in stock. Both are available as new original components in bulk packaging.

Q: Do these parts have the same RoHS and REACH compliance status?

A: Yes. Both the 2C03UM and 2E03UM are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards.