Weidmüller WDU 35 Feed-Through Terminal Block | 35 mm² | 125 A | 1000 V
The Weidmüller WDU 35 is a heavy-duty feed-through terminal block engineered for high-current power distribution and industrial control applications. Featuring robust screw connection technology, this terminal block provides secure conductor termination, excellent conductivity, and long-term reliability in demanding electrical environments.
Designed for conductor sizes up to 50 mm² and rated for 125 A at 1000 V, the WDU 35 is ideal for switchgear, power distribution systems, industrial machinery, automation equipment, and hazardous-area installations requiring certified terminal connection technology.
Key Features
Feed-through terminal block with screw connection technology
Rated conductor cross-section: 35 mm²
Rated current: 125 A
Rated voltage: 1000 V AC/DC
Two connection points
Supports conductors up to 50 mm²
Compact 16 mm housing width
Snap-on installation on TS 35 DIN rails
Low contact resistance of 0.26 mΩ
PEN conductor compatible
ATEX and IECEx approved
Explosion-tested version
RoHS and REACH compliant
UL94 V-0 flame-retardant insulation material
Technical Specifications
Specification
Value
Manufacturer
Weidmüller
Part Number
1020500000
Type
WDU 35
GTIN (EAN)
4008190077013
Terminal Type
Feed-through terminal block
Connection Type
Screw connection
Rated Cross-Section
35 mm²
Rated Voltage
1000 V
Rated DC Voltage
1000 V
Nominal Current
125 A
Maximum Current
150 A
Rated Impulse Withstand Voltage
8 kV
Number of Connections
2
Number of Levels
1
Number of Potentials
1
PEN Function
Yes
Contact Resistance
0.26 mΩ
Power Loss
4 W
Pollution Degree
3
Surge Voltage Category
III
Material
Wemid
Color
Dark Beige
Flammability Rating
UL94 V-0
Mounting Type
Snap-on TS 35 DIN Rail
Electrical Ratings
Property
Value
Rated Current
125 A
Maximum Current Capacity
150 A
Rated Voltage
1000 V
Rated DC Voltage
1000 V
Impulse Withstand Voltage
8 kV
Contact Resistance
0.26 mΩ
Power Loss
4 W
Conductor Capacity
Conductor Type
Minimum
Maximum
Solid Conductors
2.5 mm²
16 mm²
Stranded Conductors
2.5 mm²
50 mm²
Flexible Conductors
2.5 mm²
35 mm²
Conductors with Ferrules
2.5 mm²
35 mm²
Twin Ferrules
1.5 mm²
16 mm²
AWG Range
12 AWG
2 AWG
Installation Specifications
Stripping Length: 18 mm
Tightening Torque: 4.0 – 5.0 Nm
Clamping Screw: M6
Connection Direction: Side Entry
Blade Size: 6.5 x 1.2 mm
DIN Rail Compatibility: TS 35
Dimensions & Weight
Dimension
Value
Width
16 mm (0.63 in)
Height
60 mm (2.362 in)
Depth
62.5 mm (2.461 in)
Depth Including DIN Rail
63 mm
Net Weight
51.38 g
Environmental Specifications
Ambient Temperature: -60°C to +85°C
Continuous Operating Temperature: -60°C to +130°C
Storage Temperature: -25°C to +55°C
RoHS Status: Compliant without exemption
REACH SVHC: No SVHC above 0.1 wt%
Product Carbon Footprint: 0.361 kg CO₂ eq. (Cradle-to-Gate)
Hazardous Area Ratings
Certification
Voltage
Current
Maximum Wire Size
ATEX
690 V
115 A
35 mm²
IECEx
690 V
115 A
35 mm²
Approvals & Certifications
RoHS Compliant
UL Recognized (UR) File No. E60693
UL cURusEX Certificate No. E184763
CSA Certificate No. 200039-1057876
ATEX Certificate: DEMKO14ATEX1338U
IECEx Certificate: IECEXULD14.0005U
IEC 60947-7-1 Compliant
UL94 V-0 Flame Classification
Ex eb IIC Gb Hazardous Area Approval
Equipment Category II 2 G D
Applications
The Weidmüller WDU 35 terminal block is ideal for high-current power distribution systems, industrial switchgear, motor control centers, electrical substations, renewable energy installations, machinery manufacturing, automation systems, and hazardous-area applications requiring secure and certified high-capacity conductor termination.
