Equivalent & Substitute Parts for 2DU40L

Part Overview

The 2DU40L is a thermal-magnetic circuit breaker manufactured by Altech Corporation, rated for 40A at 240V AC / 250V DC with lever actuation and DIN rail mounting. This component is classified as obsolete, necessitating identification of active equivalent models to maintain system functionality and ensure continued availability for replacement and new installations.

Substiute Parts

2DU40L

Altech CorporationIn Stock: 9002DU40L Datasheet

Current PartRFQ

2D40UL

Altech CorporationIn Stock: 10422D40UL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2DU40L is determined by strict equivalence across the following electrical and mechanical parameters:

• Current Rating: 40A (exact match required)
• Voltage Rating - AC: 240V (exact match required)
• Number of Poles: 2 (exact match required)
• Breaker Type: Thermal Magnetic (exact match required)
• Actuator Type: Lever (exact match required)
• Mounting Type: DIN Rail (exact match required)
• Approval Agency: UL489 certification (required for regulatory compliance)

The 2D40UL meets all substitution criteria as an active product from the same manufacturer with identical electrical ratings, pole configuration, actuation mechanism, and mounting standard.

Parameter Comparison

Engineering Selection Recommendations

The 2D40UL is the direct equivalent for the obsolete 2DU40L. Both components share identical electrical specifications (40A, 240V AC), mechanical configuration (2-pole, lever-actuated, DIN rail mount), and regulatory certifications (UL489, CE, cULus). The 2D40UL maintains ROHS3 compliance and is currently in active production status, ensuring long-term availability and supply chain continuity. Selection of the 2D40UL eliminates obsolescence risk while preserving all functional and compliance requirements of the original specification.

Frequently Asked Questions (FAQ)

Q: Can the 2D40UL be used as a direct replacement for the 2DU40L?

A: Yes. Both parts are 40A, 2-pole, thermal-magnetic circuit breakers with lever actuation and DIN rail mounting. Electrical ratings, mechanical dimensions, and regulatory certifications are equivalent.

Q: What is the primary reason to substitute the 2DU40L?

A: The 2DU40L is obsolete. The 2D40UL is the active equivalent from the same manufacturer, ensuring continued availability and supply chain support.

Q: Are there any compliance differences between these parts?

A: Both parts carry UL489, CE, and cULus certifications and are ROHS3 compliant. No compliance gaps exist between the two models.

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

A: The 2DU40L is supplied in standard packaging, while the 2D40UL is supplied in bulk packaging. This does not affect electrical or mechanical performance.

Q: What parameters must match for circuit breaker substitution?

A: Current rating, voltage rating, pole count, breaker type, actuator type, mounting standard, and regulatory certification must all match exactly. The 2D40UL satisfies all these requirements.