Weidmüller WDU 50N Feed-Through Terminal Block | 50 mm² | 150 A | 1000 V
The Weidmüller WDU 50N is a high-capacity feed-through terminal block designed for demanding power distribution and industrial electrical applications. Engineered with proven screw-clamp technology, it delivers exceptional conductivity, high current-carrying capability, and secure conductor termination for heavy-duty installations.
With a rated cross-section of 50 mm², current rating of 150 A, and voltage rating of 1000 V, the WDU 50N is ideally suited for switchgear systems, power distribution panels, industrial machinery, renewable energy systems, and high-current control applications.
Key Features
Heavy-duty feed-through terminal block
Reliable screw connection technology
Rated conductor cross-section: 50 mm²
Rated current: 150 A
Rated voltage: 1000 V AC/DC
Supports conductors up to 70 mm²
Closed housing design
PEN conductor compatible
Low contact resistance for efficient power transfer
Suitable for TS 35 DIN rail mounting
ATEX and IECEx certified
RoHS and REACH compliant
UL94 V-0 flame-retardant insulation material
Technical Specifications
Specification
Value
Manufacturer
Weidmüller
Part Number
1820840000
Type
WDU 50N
GTIN (EAN)
4032248318117
Terminal Type
Feed-through terminal block
Connection Type
Screw connection
Rated Cross-Section
50 mm²
Rated Voltage
1000 V
Rated DC Voltage
1000 V
Nominal Current
150 A
Maximum Current
192 A
Rated Impulse Withstand Voltage
8 kV
Number of Connections
2
Number of Levels
1
Number of Potentials
1
PEN Function
Yes
Contact Resistance
0.21 mΩ
Power Loss
4.8 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
150 A
Maximum Current Capacity
192 A
Rated Voltage
1000 V
Rated DC Voltage
1000 V
Rated Impulse Voltage
8 kV
Contact Resistance
0.21 mΩ
Power Loss
4.8 W
Conductor Capacity
Conductor Type
Minimum
Maximum
Solid Conductors
10 mm²
16 mm²
Stranded Conductors
10 mm²
70 mm²
Flexible Conductors
10 mm²
50 mm²
Conductors with Ferrules
10 mm²
50 mm²
Twin Ferrules
1.5 mm²
16 mm²
AWG Range
8 AWG
0 AWG
Installation Specifications
Stripping Length: 24 mm
Tightening Torque: 3.5 – 6.0 Nm
Clamping Screw: M6
Connection Direction: Side Entry
Blade Size: S4 (DIN 6911)
Mounting Method: Direct mounting on TS 35 DIN rail
Dimensions & Weight
Dimension
Value
Width
18.5 mm (0.728 in)
Height
70 mm (2.756 in)
Depth
69.6 mm (2.74 in)
Depth Including DIN Rail
70.6 mm
Net Weight
84.38 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: 0.775 kg CO₂ eq. (Cradle-to-Gate)
Hazardous Area Ratings
Certification
Voltage
Current
Maximum Wire Size
ATEX
690 V
126 A
50 mm²
IECEx
690 V
126 A
50 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 50N terminal block is designed for heavy-duty power distribution, industrial switchgear assemblies, motor control centers, utility infrastructure, renewable energy systems, electrical substations, large control panels, and high-current industrial installations requiring reliable and certified conductor termination.
