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Material: Steatite C221(This high-quality ceramic does not require glazing)
Voltage: 450V
Terminals and screws: zinc-plated steel or brass
Shunts: Brass
Insulation distances: > 3mm on backside
Walls of terminal dividers: height 4mm, thickness 5mm
Temperature resistance: 240°C (460°F) continuous, 400°C (750°F) 2 hours peak).
Marking: U1, V1, W1 and U2, V2, W2 (according to IEC 60034-8)
Recommended tightening torques for nuts:
M4: 1.2N.m; M5: 2.5N.m; M6: 3.5N.m; M8: 7N.m
Applicable Standards: IEC 60034-8 and NFC 51-120
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