Cut Sheet

Blocks AND tERMINAls sINglE-PolE DIstRIButIoN Blocks
Spec-01140 F
EQUIPMENT PROTECTIONSUBJECT TO CHANGE WITHOUT NOTICEPowER AND GRouNDING coNNEctIvIty11
Unit Dimensions
Catalog Number Depth D (in.) Height H (in.) Width W (in.) Unit Weight (lb.) Qty.
UDF250A 1.82 3.11 1.16 0.33 1
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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)
250 A 255 A 9 kA 23 kA 100 kA 1,000 VAC/DC 600 V
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Line Side Number of Connections Load Side Number of Connections
Load Side Compact
Stranded Wire Size
Load Side Stranded
Wire Size - Ferrule
Load Side Wire Size
1 6 (6) 2,5 - 16 mm² (6) 2,5 - 16 mm² (6) #10 - #4
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Conducting Layers Conductor Width Lamination Thickness
3 - 6 9 mm 0.8 mm
3 - 6 13 mm 0.5 mm
2 - 6 15.5 mm 0.8 mm
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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