Weidmuller WDU 35 Feed-Through Terminal Block

$ 4.72

Robust 125A power terminal for high-density DIN rail layouts. Includes vibration-resistant clamping, 120°C thermal stability, and 2.5 mm² to 50 mm² wire range.

MOQ: 40 pcs · Order in multiples of 40
Total:
Industrial Connectivity / Terminal Blocks

Weidmüller WDU 35 Feed-Through Terminal Block

Model Identifier WDU 35
Official Part Number 1020500000
GTIN Standard 4008190077013

Technical Overview

The Weidmüller WDU 35 (Part No: 1020500000) is a robust feed-through terminal block designed for high-current industrial applications. Part of the W-Series, it features a screw connection system that ensures secure, vibration-resistant clamping for conductors up to 35 mm². Constructed from Wemid composite material, it offers superior thermal stability (up to 120°C continuous) and V-0 flammability rating. The unit supports a rated voltage of 1000 V and a rated current of 125 A (IEC) / 150 A (UL), making it ideal for demanding power distribution tasks in switchgear and control cabinets. Its compact 16mm width allows for high-density mounting on TS 35 DIN rails.

Key Features

  • Patented screw connection technology for secure, maintenance-free contact
  • High thermal stability Wemid insulation material (continuous 120°C)
  • Rated for 1000 V and 125 A, suitable for high-power applications
  • Compact 16mm width optimized for space-saving DIN rail layouts
  • Explosion-tested version available (Ex eb II C Gb)
  • Accommodates a wide clamping range from 2.5 mm² to 50 mm²
  • UL 94 V-0 flammability rating for enhanced safety
  • RoHS compliant and free of hazardous substances

High-capacity power transmission supporting up to 125 A (IEC) and 150 A (UL) at 1000 V rated voltage.

Technical Specification Matrix

Technical ParameterSpecification
VersionFeed-through terminal block, Screw connection
Order No.1020500000
TypeWDU 35
GTIN (EAN)4008190077013
Depth including DIN rail63 mm
Storage temperature-25 °C...55 °C
Continuous operating temp., min.-60 °C
Continuous operating temp., max.130 °C
MaterialWemid
ColourDark beige
UL 94 flammability ratingV-0
Certificate No. (ATEX)DEMKO14ATEX1338U
Max. voltage (ATEX)690 V
Current (ATEX)115 A
Wire cross section max. (ATEX)35 mm²
Marking EN 60079-7Ex eb II C Gb
Number of levels1
Number of clamping points per level2
Levels cross-connected internallyNo
PE connectionNo
RailTS 35
Open sidesright
Clamping range, min.2.5 mm²
Clamping range, max.50 mm²
Connection directionon side
Gauge to IEC 60947-1B9
Stripping length18 mm
Tightening torque, min.4 Nm
Tightening torque, max.5 Nm
Wire connection cross section AWG, min.AWG 12
Wire connection cross section AWG, max.AWG 2
Wire connection cross section, solid, min.2.5 mm²
Wire connection cross section, solid, max.16 mm²
Wire connection cross section, stranded, min.2.5 mm²
Wire connection cross section, stranded, max.50 mm²
Wire connection cross section, finely stranded, max.35 mm²
Twin wire-end ferrules, min.1.5 mm²
Twin wire-end ferrules, max.16 mm²
Rated cross-section35 mm²
Rated voltage1000 V
Rated current125 A
Current at maximum wires150 A
Volume resistance according to IEC 60947-7-x0.26 mΩ
Rated impulse withstand voltage8 kV
Power loss in accordance with IEC 60947-7-x4 W
Pollution severity3
Wire cross section max. (UR)0 AWG
Wire cross section min. (UR)12 AWG
Depth62.5 mm
Height60 mm
Width16 mm
Blade size6.5 x 1.2 mm
Voltage size C (UR)1000 V
Current size C (UR)150 A
Net weight51.38 g

Industrial Applications

1. High-Power Industrial Switchgear

Used in main power distribution panels to terminate large gauge feed-in cables.

Problem Solved

Provides a secure, high-current connection point in a compact footprint, replacing bulky busbar systems for medium-power distribution.

125 A rated current1000 V rated voltage35 mm² cross-sectionScrew connection

2. Photovoltaic Combiner Boxes

Integration into solar DC distribution systems requiring high voltage handling.

Problem Solved

The 1000 V DC rating allows safe termination of high-voltage strings from solar arrays without dielectric breakdown.

1000 V DCWemid materialV-0 flammabilityThermal stability

3. Heavy Machinery Control Units

Termination of power supply lines in vibrating machinery environments.

Problem Solved

The maintenance-free screw connection with patented clamping yoke prevents loosening under vibration, ensuring reliable machine operation.

Vibration resistanceTightening torque 5 NmTS 35 mountingEx eb II C Gb

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