UD400112AL Unipolar Distribution Block


Download Product Brochure here https://www.erico.com/part.asp?part=UD-400112AL


  • Tinned copper or aluminum block allows for copper or aluminum conductor direct connections, or using ferrule
  • Screw retaining cover is hinged and removable
  • Design allows for visual inspection of conductor and confirmation of connection
  • Modular snap-together blocks for building multi-pole power blocks
  • Easily clips onto DIN rail or mounts to panel with screws
  • 95% fill ratio
  • RoHS compliant
  • Conforms to EN 45545 obtaining an HL3 classification for chapter R23 and HL2 classification for chapter R22
  • Halogen free


Part Number UD-400112AL
Article Number 569252
Finish Tinned
Max Current Rating, IEC 400 A
Max Current Rating, UL/CSA 335 A
Line Side Connection Cable
Load Side Connection 12 Cables
Material Aluminum
Line Side Max Conductor Size, IEC 185 mm²
Load Side Max Conductor Size, IEC 10 mm²
Max Working Voltage, IEC (Ui) 1,000 VAC
1,500 VDC
Max Working Voltage, UL (Vin) 1,000 VAC/DC
Short Term Withstand Current (Icw) 1s 24.5 kA
Peak Short Circuit Current (Ipk) 51 kA
Rated Conditional Short-Circuit Current (Icc) 24.3 kA
Short Circuit Current Rating (SCCR) 10 kA
Line Side Number of Connections 1
Line Side Compact Stranded Wire Size 95 – 185 mm²
Line Side Wire Size 3/0 – 400 kcmil
Load Side Number of Connections 12
Load Side Compact Stranded Wire Size (12) 2,5 – 10 mm²
Load Side Stranded Wire Size – Ferrule (12) 2,5 – 10 mm²
Load Side Wire Size (12) #14 – #6
Enclosure Rating IP 20
Depth 50 mm
Height 96 mm
Width 55.73 mm
Unit Weight 0.18 kg
Certification Details UL® 1059
Flammability Rating UL® 94V-0
Complies With IEC® 60947-7-1
Certifications CE, ERIFLEX UD
CSA 70044370
EAC 02942 (Russian Federation)
EN 45545 HL3/R23, UD/BD/TD/SB
Standard Packaging Quantity 1 pc
UPC 78285668758
EAN-13 8711893104974
Design Guideline for Distribution Blocks, Power Blocks and Power Terminals
Derating according to Ambient* Temperature (°C) to maintain working temperature of 85°C
Ambient Temperature (°C) 30° 35° 40° 45° 50° 55° 60° 65° 70° 75°
Derating Coefficient (d) 1 1 1 0.94 0.88 0.82 0.75 0.67 0.58 0.47
*environment around the terminal blocks inside the enclosure
Increase the number of outputs with one input using a jumper on blocks with a Max Current Rating, IEC up to 160 A.
Blocks with 1,000 VAC/DC Max Working Voltage, UL are ideal for solar applications.


There are no reviews yet.

Be the first to review “UD400112AL Unipolar Distribution Block”

Your email address will not be published. Required fields are marked *