Altech Corporation 2DU1L Circuit Breaker - Equivalent & Substitute Parts

Part Overview

The Altech Corporation 2DU1L is a thermal-magnetic circuit breaker rated for 1A at 480V AC and 250V DC, designed for DIN rail mounting with lever actuation. This component is discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for system maintenance, repair, and component sourcing. The 2DU1L remains available in inventory (819 pcs) through authorized distributors, but active alternatives should be evaluated for new designs and long-term availability assurance.

Substiute Parts

2DU1L

Altech CorporationIn Stock: 8582DU1L Datasheet

Current PartRFQ

2D1UL

Altech CorporationIn Stock: 11852D1UL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2DU1L is determined by strict equivalence across the following critical parameters:

• Current Rating: 1A (exact match required)
• Voltage Rating - AC: 480V (exact match required)
• Breaker Type: Thermal Magnetic (exact match required)
• Mounting Type: DIN Rail (exact match required)
• Actuator Type: Lever (exact match required)
• Number of Poles: 2 (exact match required)
• Approval Agencies: CE, cULus, UL489 (minimum compliance required)

The 2D1UL meets all substitution criteria. While the 2D1UL does not specify a DC voltage rating in the provided data, it maintains identical AC voltage rating (480V), current rating (1A), breaker topology, mounting configuration, and regulatory approvals. Both components are manufactured by Altech Corporation and comply with ROHS3 and REACH requirements.

Parameter Comparison

Engineering Selection Recommendations

The 2D1UL is a direct functional equivalent to the 2DU1L for applications requiring 1A thermal-magnetic circuit protection at 480V AC on DIN rail systems. Both components carry identical regulatory certifications (CE, cULus, UL489) and meet ROHS3 compliance requirements. The 2D1UL holds active product status with higher inventory availability (1089 pcs), providing superior supply chain continuity compared to the discontinued 2DU1L.

Selection of the 2D1UL is appropriate for replacement applications where the 2DU1L is no longer procurable. The absence of a specified DC voltage rating for the 2D1UL should be verified against application requirements if DC operation at 250V is a system necessity.

Frequently Asked Questions (FAQ)

Q: Can the 2D1UL directly replace the 2DU1L in existing installations?

A: Yes. Both components share identical current rating (1A), AC voltage rating (480V), thermal-magnetic protection topology, DIN rail mounting, lever actuation, pole configuration (2-pole), and regulatory approvals. Physical form factor and electrical performance are equivalent.

Q: What is the difference between the 2DU1L and 2D1UL series designations?

A: The 2DU1L belongs to the L series, while the 2D1UL belongs to the UL series. Both are manufactured by Altech Corporation. The series designation reflects internal product line organization but does not affect functional equivalence for the specified parameters.

Q: Is the 2D1UL suitable for DC applications?

A: The 2D1UL datasheet does not specify a DC voltage rating. The original 2DU1L is rated for 250V DC. If DC operation is required, verify the 2D1UL DC rating with the manufacturer or select an alternative component with confirmed DC specifications.

Q: Are there packaging differences between these parts?

A: The 2DU1L is specified with "-" packaging notation, while the 2D1UL is supplied in Bulk packaging. Both are suitable for DIN rail installation. Confirm packaging requirements with your procurement process.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both the 2DU1L and 2D1UL are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic components.