DP25-RD Terminal Block Connector Equivalent & Substitute Parts

Part Overview

The DP25-RD 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 12-22 AWG range with electrical ratings of 24 A (IEC) / 25 A (UL) and 630 V (IEC) / 600 V (UL). The product is currently obsolete, making identification of functionally equivalent alternatives necessary for ongoing maintenance, repair, and system continuity applications.

Substiute Parts

DP25-RD

Eaton - Bussmann Electrical DivisionIn Stock: 925DP25-RD Datasheet

Current PartRFQ

1020040000

WeidmüllerIn Stock: 17171020040000 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DP25-RD is determined by strict equivalence across the following critical parameters:

• Electrical Compatibility: Current and voltage ratings must meet or exceed the original specification (24 A IEC / 25 A UL minimum; 630 V IEC / 600 V UL minimum)
• Mechanical Compatibility: 2-position, 1-level feed-through configuration with screw termination and 5.1 mm terminal width
• Wire Gauge Acceptance: The substitute must accept the 12-22 AWG range of the original part
• Insulation and Safety: UL94 V-0 flammability rating and compatible insulation material
• Physical Form Factor: Red color and compatible stripping length requirements

The Weidmüller 1020040000 qualifies as a substitute based on these parameters, with specific considerations noted in the parameter comparison section.

Parameter Comparison

Engineering Selection Recommendations

The Weidmüller 1020040000 is electrically and mechanically compatible with the obsolete DP25-RD for applications requiring 2-position feed-through terminal block connectors with screw termination. Both components meet UL94 V-0 flammability requirements and maintain equivalent electrical ratings at 24 A (IEC) / 25 A (UL) and 600 V (UL) minimum.

Key considerations for selection:

• The Weidmüller substitute accepts wire gauges from 12-30 AWG, providing broader compatibility than the original 12-22 AWG specification
• The mm² wire gauge range of the substitute (0.5-4 mm²) is narrower than the original (0.5-25 mm²); applications requiring conductors larger than 4 mm² must be evaluated against actual circuit requirements
• The substitute requires 10 mm stripping length versus the original 12 mm; installation procedures must be adjusted accordingly
• The Weidmüller 1020040000 is an active product with current manufacturing status and RoHS compliance, supporting long-term supply chain continuity
• Insulation material differs (Wemid thermoplastic versus PA66 nylon), though both achieve equivalent flammability ratings

Frequently Asked Questions (FAQ)

Q: Can the Weidmüller 1020040000 directly replace the DP25-RD in existing installations?

A: The Weidmüller 1020040000 is electrically and mechanically compatible for 2-position feed-through screw termination applications. Physical mounting and terminal spacing are equivalent at 5.1 mm width. Installation procedures must account for the 10 mm stripping length requirement versus the original 12 mm specification.

Q: What is the significance of the different wire gauge ranges (12-22 AWG vs. 12-30 AWG)?

A: The substitute accepts a broader AWG range. For applications using 12-22 AWG conductors, both components are fully compatible. Applications requiring 23-30 AWG conductors can only use the Weidmüller substitute. The narrower mm² range (0.5-4 mm² vs. 0.5-25 mm²) must be verified for applications using larger cross-section conductors.

Q: Are there differences in insulation material that affect performance?

A: The DP25-RD uses PA66 nylon insulation, while the Weidmüller 1020040000 uses Wemid thermoplastic. Both materials achieve UL94 V-0 flammability rating. Material selection should be evaluated based on specific environmental conditions, chemical exposure, and temperature requirements of the application.

Q: Why is the stripping length different between the two components?

A: The DP25-RD requires 12 mm conductor stripping, while the Weidmüller 1020040000 requires 10 mm. This is a design difference between manufacturers. Installation procedures must be adjusted to match the substitute component's requirements.

Q: Does the Weidmüller substitute meet current compliance standards?

A: The Weidmüller 1020040000 is RoHS compliant and currently manufactured. The DP25-RD is obsolete. For new designs or systems requiring compliance with current environmental regulations, the active Weidmüller product is the appropriate selection.

Q: Are the electrical ratings equivalent for both IEC and UL standards?

A: Both components meet 24 A (IEC) / 25 A (UL) current ratings and 600 V (UL) voltage requirements. The Weidmüller substitute exceeds the original IEC voltage rating at 800 V versus 630 V, providing additional margin for high-voltage applications.