2CU50L Circuit Breaker - Equivalent & Substitute Parts

Part Overview

The 2CU50L is a thermal magnetic circuit breaker manufactured by Altech Corporation, rated for 50A at 240V AC and 250V DC. This component is classified as obsolete, making identification of suitable substitute parts essential for system maintenance and component replacement in existing installations. The 2CU50L features a lever-actuated mechanism, DIN rail mounting, and dual-pole configuration with thermal-magnetic protection characteristics.

Substiute Parts

2CU50L

Altech CorporationIn Stock: 11492CU50L Datasheet

Current PartRFQ

2C50UL

Altech CorporationIn Stock: 10522C50UL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The 2C50UL qualifies as a direct substitute for the 2CU50L based on the following critical parameters:

Matching Parameters:

• Current Rating: 50A (identical)
• Voltage Rating - AC: 240V (identical)
• Number of Poles: 2 (identical)
• Breaker Type: Thermal Magnetic (identical)
• Actuator Type: Lever (identical)
• Mounting Type: DIN Rail (identical)
• Approval Agencies: CE, cULus, UL489 (identical)
• Manufacturer: Altech Corporation (same manufacturer)

Substitution Basis: The 2C50UL maintains electrical and mechanical compatibility with the 2CU50L through identical current handling capacity, voltage specifications, pole configuration, and protection mechanism. Both components are manufactured by Altech Corporation and carry equivalent regulatory certifications. The primary distinction is product status: the 2CU50L is obsolete while the 2C50UL remains active, making the latter suitable for replacement applications.

Parameter Comparison

Engineering Selection Recommendations

The 2C50UL is the designated substitute for the obsolete 2CU50L. Selection is based on:

• Electrical Equivalence: Both components maintain identical current and AC voltage ratings of 50A and 240V respectively, ensuring functional compatibility in existing circuit configurations.
• Mechanical Compatibility: Identical pole count (2), actuator type (lever), and DIN rail mounting ensure physical and operational interchangeability.
• Regulatory Compliance: Both parts carry CE, cULus, and UL489 certifications, meeting the same approval standards.
• Product Availability: The 2C50UL is active in production, whereas the 2CU50L is obsolete, making the former the practical choice for replacement and new installations.
• Environmental Compliance: Both components are ROHS3 compliant, satisfying current environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can the 2C50UL directly replace the 2CU50L in existing installations?

A: Yes. The 2C50UL is electrically and mechanically equivalent to the 2CU50L. Both components share identical current ratings (50A), AC voltage ratings (240V), pole configuration (2-pole), actuator type (lever), and mounting method (DIN rail). Regulatory certifications are also identical.

Q: What is the primary reason for substitution?

A: The 2CU50L is classified as obsolete. The 2C50UL is the active equivalent from the same manufacturer, ensuring continued availability and support.

Q: Are there differences in DC voltage rating between these parts?

A: The 2CU50L specifies a 250V DC rating. The 2C50UL does not provide a DC voltage specification in available documentation. For applications requiring DC operation, verify DC compatibility with the component supplier before substitution.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both the 2CU50L and 2C50UL carry CE, cULus, and UL489 certifications, meeting equivalent approval requirements.

Q: What is the difference between the L and UL series designations?

A: The series designation (L for 2CU50L and UL for 2C50UL) indicates different product lines within Altech Corporation's thermal magnetic breaker portfolio. Despite the series difference, the electrical and mechanical parameters remain equivalent for substitution purposes.

Q: Are packaging considerations relevant to substitution?

A: The 2CU50L is listed with standard packaging, while the 2C50UL is supplied in bulk packaging. This distinction affects procurement and inventory management but does not impact functional compatibility or performance.