Cut Sheet
Blocks AND tERMINAls sINglE-PolE DIstRIButIoN Blocks
Spec-01140 F
EQUIPMENT PROTECTION PowER AND GRouNDING coNNEctIvIty 12
uDF-500A sINGlE PolE DIstRIButIoN Block
INDustRy stANDARDs
FEAtuREs
connections
Design allows for visual inspection of conductor and
confirmation of connection
95% fill ratio
Halogen free
sPEcIFIcAtIoNs
FINIsh
:
+
'
Unit Dimensions
Catalog Number Depth D (in.) Height H (in.) Width W (in.) Unit Weight (lb.) Qty.
UDF500A 1.99 3.79 1.93 0.82 1
Max Current
Rating, IEC
Max Current Rating,
UL/CSA
Short Term Withstand Current
(Icw) 1s
Peak Short Circuit
Current (Ipk)
Short Circuit Current Rating
(SCCR)
Max Working Voltage,
IEC (Ui)
Max Working Voltage,
UL (Vin)
500 A 335 A 24.5 kA 51 kA 10 kA 1,000 VAC/DC 600 V
Line Side Number
of Connections
Line Side
Wire Size
Load Side Number
of Connections
Load Side Compact
Stranded Wire Size
Load Side Stranded
Wire Size - Ferrule
Load Side Wire Size
1 – 11 (2) 6 – 35 mm² (4) 2,5 – 10 mm² (5) 2,5 – 16 mm² (2) 6 - 25 mm² (4) 2,5 - 10 mm² (5) 2,5 - 16 mm² (2) #8 - #1 (4) #8 - #6 (5) #8 - #4
Conducting Layers Conductor Width Lamination Thickness
4 - 6 15.5 mm 0.8 mm
2 - 6 20 mm 1 mm
2 - 8 24 mm 1 mm
Derating according to Ambient* Temperature (°F) to maintain working temperature of 185°F
Ambient
Temperature
(°F)
86° 95° 104° 113° 122° 131° 140° 149° 158° 167°
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