DP45-BU Terminal Block Connector Equivalent & Substitute Parts

Part Overview

The DP45-BU is a 2-position feed-through terminal block connector manufactured by Eaton - Bussmann Electrical Division, part of the Magnum® DP series. This component is designed for screw termination of conductors in the 8-20 AWG range, with electrical ratings of 41 A (IEC) / 45 A (UL) and 500 V (IEC) / 600 V (UL). The DP45-BU is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain system functionality and ensure continued availability for applications requiring this connector type.

Substiute Parts

DP45-BU

Eaton - Bussmann Electrical DivisionIn Stock: 1171DP45-BU Datasheet

Current PartRFQ

ATB6BU

Amphenol PCDIn Stock: 1098ATB6BU Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DP45-BU is determined by the following critical parameters:

• Connector Type & Configuration: Feed-through terminal block with 2 positions and 1 level
• Terminal Dimensions: 8.0 mm terminal width for mechanical compatibility
• Termination Method: Screw termination
• Electrical Ratings: Current capacity (minimum 41 A IEC / 45 A UL) and voltage rating (minimum 500 V IEC / 600 V UL)
• Wire Gauge Compatibility: Support for 8-20 AWG conductor range (0.5-6 mm²)
• Material & Compliance: Polyamide insulation with UL94 V-0 flammability rating; RoHS compliance
• Physical Characteristics: Blue color, 12 mm stripping length

The ATB6BU from Amphenol PCD meets these substitution criteria with compatible or superior electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The ATB6BU (Amphenol PCD) is a direct substitute for the obsolete DP45-BU. Both components share identical mechanical configuration (2-position, 1-level, 8.0 mm terminal width, screw termination) and core electrical specifications (41 A IEC, 600 V UL). The ATB6BU provides equal or superior performance across all rated parameters: higher IEC voltage rating (800 V vs. 500 V), higher UL current rating (50 A vs. 45 A), and extended wire gauge support (8-22 AWG vs. 8-20 AWG).

Both parts maintain RoHS compliance, identical insulation material (Polyamide PA66), and MSL 1 classification. The ATB6BU is currently in active production status, ensuring long-term availability and supply chain continuity. The ATB6BU is supplied in tray packaging, whereas the DP45-BU packaging specification is not provided.

Frequently Asked Questions (FAQ)

Q: Can the ATB6BU directly replace the DP45-BU in existing applications?

A: Yes. Both connectors share identical mechanical dimensions (2 positions, 8.0 mm terminal width, 12 mm stripping length) and screw termination method. Electrical ratings are equal or superior on the ATB6BU across all specifications.

Q: What is the wire gauge compatibility difference between these parts?

A: The DP45-BU supports 8-20 AWG (0.5-6 mm²), while the ATB6BU supports 8-22 AWG (1.5-6 mm²). The ATB6BU accommodates smaller gauge conductors (22 AWG) but has a higher minimum gauge specification (1.5 mm² vs. 0.5 mm²). For applications using 8-20 AWG conductors, both parts are compatible.

Q: Why is the DP45-BU obsolete?

A: The DP45-BU is classified as obsolete by the manufacturer. The ATB6BU from Amphenol PCD provides equivalent functionality with active production status and improved electrical ratings.

Q: Are there any material or compliance differences?

A: Both parts use identical insulation material (Polyamide PA66, Nylon 6/6) and maintain RoHS compliance. The DP45-BU specifies UL94 V-0 flammability rating; the ATB6BU flammability rating is not provided in available specifications.

Q: What is the packaging difference?

A: The ATB6BU is supplied in tray packaging. The DP45-BU packaging specification is not documented in available data.