DS50-BU Terminal Block Connector Equivalent & Substitute Parts

Part Overview

The DS50-BU is a 2-position feed-through terminal block connector manufactured by Eaton - Bussmann Electrical Division, part of the Magnum® DS series. This component is designed for screw termination of conductors in the 8-20 AWG range, supporting IEC ratings of 41 A at 1000V and UL ratings of 50 A at 600V. The product is currently obsolete, making identification of functionally equivalent alternatives necessary for ongoing maintenance, repair, and system continuity applications.

Substiute Parts

DS50-BU

Eaton - Bussmann Electrical DivisionIn Stock: 1072DS50-BU Datasheet

Current PartRFQ

ATB6BU

Amphenol PCDIn Stock: 1098ATB6BU Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DS50-BU is determined by the following critical parameters that must remain consistent or compatible:

• Mechanical Compatibility: 2 positions, 1 level, 8.0mm terminal width, feed-through configuration, and screw termination style
• Electrical Performance: Current and voltage ratings must meet or exceed the application requirements (minimum 41 A IEC / 50 A UL; minimum 1000V IEC / 600V UL)
• Wire Gauge Accommodation: The substitute must accept the conductor sizes specified for the original part (8-20 AWG / 0.5-6mm²)
• Physical Characteristics: Blue color, polyamide insulation material, 12mm stripping length
• Regulatory Compliance: UL94 V-0 flammability rating or equivalent

The ATB6BU from Amphenol PCD meets these substitution criteria with the following considerations: it maintains identical mechanical form factor, supports the required wire gauge range (8-22 AWG), delivers equivalent electrical performance (41 A IEC / 50 A UL at 600V UL), and uses identical insulation material. The ATB6BU is an active product with current manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

The ATB6BU is a direct functional equivalent for the obsolete DS50-BU in applications requiring 2-position, 8.0mm feed-through terminal blocks with screw termination. Both components deliver identical UL electrical performance (50 A at 600V) and support the same wire gauge range within the specified limits. The ATB6BU maintains active product status with current manufacturing availability, ensuring supply chain continuity.

The ATB6BU exhibits a lower IEC voltage rating (800V versus 1000V). Applications operating at IEC voltage levels above 800V require verification that the reduced rating remains acceptable for the intended circuit. The ATB6BU's extended wire gauge range (8-22 AWG versus 8-20 AWG) provides additional accommodation for smaller conductors without affecting compatibility with the original specification range.

The ATB6BU carries RoHS compliance certification, whereas the DS50-BU compliance status is not specified. This distinction is relevant for applications subject to RoHS regulatory requirements.

Frequently Asked Questions (FAQ)

Q: Can the ATB6BU directly replace the DS50-BU in all applications?

A: The ATB6BU is mechanically and electrically compatible for applications operating within UL specifications (50 A at 600V). Applications requiring IEC voltage ratings above 800V must confirm that the ATB6BU's 800V IEC rating is acceptable, as this represents a reduction from the DS50-BU's 1000V IEC rating.

Q: What is the significance of the wire gauge range difference (8-20 AWG versus 8-22 AWG)?

A: The ATB6BU accommodates a broader wire gauge range, including smaller conductors (22 AWG). This extended range does not affect compatibility with the DS50-BU's specified 8-20 AWG range, as all conductors within 8-20 AWG are accepted by both components.

Q: Are there packaging differences between these components?

A: The DS50-BU packaging is not specified in the available data. The ATB6BU is supplied in tray packaging. Verify packaging requirements for your procurement and assembly processes.

Q: What is the significance of RoHS compliance for the ATB6BU?

A: The ATB6BU is RoHS compliant, meaning it meets restrictions on hazardous substances. If your application or regulatory environment requires RoHS compliance, the ATB6BU satisfies this requirement. The DS50-BU's RoHS status is not specified.

Q: Are the insulation materials identical?

A: Both components use Polyamide (PA66), Nylon 6/6 insulation material. The DS50-BU specifies UL94 V-0 flammability rating; the ATB6BU's flammability rating is not specified in the available data.

Q: What inventory status should influence my selection?

A: The DS50-BU is obsolete with 971 pieces in stock. The ATB6BU is an active product with 1066 pieces in stock. For long-term supply assurance, the ATB6BU's active status provides ongoing manufacturing availability.