Weidmüller WDU 16 Feed-Through Terminal Block | 16 mm² | 76 A | 1000 V
The Weidmüller WDU 16 is a heavy-duty feed-through terminal block designed for high-current industrial power distribution and control applications. Utilizing proven screw connection technology, it delivers secure conductor termination, low contact resistance, and outstanding long-term reliability in demanding electrical installations.
With a rated cross-section of 16 mm² (6AWG) nominal current rating of 76 A, and voltage rating of 1000 V, the WDU 16 is ideal for switchgear, industrial automation, machinery, power distribution panels, and hazardous-area applications requiring certified connection technology.
Key Features
Feed-through terminal block with screw connection technology
Rated conductor cross-section: 16 mm²
Rated current: 76 A
Rated voltage: 1000 V AC/DC
Two connection points
Supports conductors up to 25 mm²
Compact 11.9 mm housing width
Snap-on mounting for TS 35 DIN rails
Very low contact resistance of 0.42 mΩ
Suitable for high-power industrial applications
Explosion-tested version available
ATEX and IECEx approved
RoHS and REACH compliant
UL94 V-0 flame-retardant insulation material
Technical Specifications
Specification
Value
Manufacturer
Weidmüller
Part Number
1020400000
Type
WDU 16
GTIN (EAN)
4008190127794
Terminal Type
Feed-through terminal block
Connection Type
Screw connection
Rated Cross-Section
16 mm²
Rated Voltage
1000 V
Rated DC Voltage
1000 V
Nominal Current
76 A
Maximum Current
101 A
Rated Impulse Withstand Voltage
8 kV
Number of Connections
2
Number of Levels
1
Number of Potentials
1
PEN Function
Yes
Contact Resistance
0.42 mΩ
Power Loss
2.43 W
Pollution Degree
3
Material
Wemid
Color
Dark Beige
Flammability Rating
UL94 V-0
Mounting Method
Snap-on TS 35 DIN Rail
Conductor Capacity
Conductor Type
Minimum
Maximum
Solid Conductors
0.82 mm²
16 mm²
Stranded Conductors
0.82 mm²
25 mm²
Flexible Conductors
1.5 mm²
25 mm²
Conductors with Ferrules
0.82 mm²
16 mm²
Twin Ferrules
1.5 mm²
10 mm²
AWG Range
18 AWG
4 AWG
Installation Specifications
Stripping Length: 16 mm
Tightening Torque: 3.0 – 4.0 Nm
Clamping Screw: M5
Connection Direction: Side Entry
Blade Size: 1.0 x 5.5 mm
DIN Rail Compatibility: TS 35
Dimensions & Weight
Dimension
Value
Width
11.9 mm (0.469 in)
Height
60 mm (2.362 in)
Depth
62.5 mm (2.461 in)
Depth Including DIN Rail
63 mm
Net Weight
29.46 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: 0.235 kg CO₂ eq. (Cradle-to-Gate)
Hazardous Area Ratings
Certification
Voltage
Current
Maximum Wire Size
ATEX
690 V
76 A
16 mm²
IECEx
690 V
76 A
16 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 16 terminal block is designed for high-current power distribution systems, switchgear assemblies, industrial automation equipment, motor control centers, machinery manufacturing, renewable energy systems, control panels, and hazardous-location installations requiring secure and certified electrical connections.
