UD400212CU Unipolar Distribution Block UD 400212CU


Download Product Brochure here https://www.erico.com/part.asp?part=UD-400212CU


  • 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-400212CU
Article Number 569051
Finish Tinned
Max Current Rating, IEC 400 A
Max Current Rating, UL/CSA 400 A
Line Side Connection 2 Cables
Load Side Connection 12 Cables
Material Copper
Line Side Max Conductor Size, IEC 95 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 2
Line Side Compact Stranded Wire Size 35 – 95 mm²
Line Side Wire Size #8 – 3/0
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 0.38 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 78285668760
EAN-13 8711893096323
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.


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