Circuit Breaker Thermal Magnetic 2DU8L - Equivalent & Substitute Parts

Part Overview

The Altech Corporation 2DU8L is a thermal magnetic circuit breaker rated for 8A at 480V AC and 250V DC, designed for DIN rail mounting with lever actuation. This component is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives to maintain system continuity and support ongoing maintenance requirements. The 2DU8L remains available in inventory (721 pcs) but substitute parts should be evaluated for new procurement and long-term supply chain planning.

Substiute Parts

2DU8L

Altech CorporationIn Stock: 8082DU8L Datasheet

Current PartRFQ

2D8UL

Altech CorporationIn Stock: 9362D8UL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 2DU8L is determined by strict equivalence across the following critical parameters:

• Current Rating: 8A (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)
• Voltage Rating - AC: 480V (exact match required)
• Approval Agencies: CE, cULus, UL489 (all certifications must be present)

The substitute part 2D8UL meets all substitution criteria. Both parts share identical electrical specifications, mechanical form factor, and regulatory compliance. The primary distinction is product status: 2D8UL is currently active in production, whereas 2DU8L is discontinued.

Parameter Comparison

Engineering Selection Recommendations

The 2D8UL is a direct functional equivalent to the 2DU8L. Both parts carry identical regulatory certifications (CE, cULus, UL489) and maintain ROHS3 compliance. The 2D8UL is the appropriate selection for new procurement due to its active product status and current availability (838 pcs in stock). For applications currently using the 2DU8L, the 2D8UL provides seamless compatibility without design modification or system reconfiguration.

Frequently Asked Questions (FAQ)

Q: Can the 2D8UL directly replace the 2DU8L in existing installations?

A: Yes. Both parts are identical in electrical rating (8A, 480V AC), mechanical form factor (DIN rail mount, lever actuator, 2-pole), and regulatory compliance (CE, cULus, UL489). No circuit modifications are required.

Q: What is the difference between the 2DU8L and 2D8UL part numbers?

A: The part numbers reflect different product series designations within Altech Corporation's thermal magnetic breaker line (L series vs. UL series). The electrical and mechanical specifications are equivalent. The primary operational difference is product status: 2DU8L is discontinued, while 2D8UL is actively manufactured.

Q: Are there voltage rating differences between these parts?

A: The 2DU8L is rated for 480V AC and 250V DC. The 2D8UL is rated for 480V AC. For applications requiring 250V DC operation, the 2DU8L specifications must be retained. For 480V AC applications, both parts are equivalent.

Q: What packaging options are available?

A: The 2DU8L is available in standard packaging. The 2D8UL is supplied in bulk packaging. Packaging format does not affect electrical or mechanical compatibility.

Q: Are both parts RoHS compliant?

A: Yes. Both the 2DU8L and 2D8UL are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.