74
DMX
3
8. Tecnical specifications
According to IEC60947-2
DMX
3
1600
Version 42 kA Version 50 kA
Number of poles 3P-4P
Rating In (A) 630/800/1000/1250/1600
Rated insulation voltage Ui (V) 1000
Rated impulsive voltage Uimp (kV) 12
Rated operational voltage (50/60Hz) Ue (V) 690
Rated ultimate breaking
capacity Icu (kA)
230Vac 42 50
415Vac 42 50
500Vac 42 50
600Vac 42 42
690Vac 42 42
Rated service breaking capacity Ics (%Icu) 100% 100%
Rated short-circuit
making capacity
Icm (kA)
230Vac 88 105
415Vac 88 105
500Vac 88 105
600Vac 88 88
690Vac 88 88
Rated short-circuit
withstand current
Icw (kA)
230Vac (t=1s) 42 50
415Vac (t=1s) 42 50
500Vac (t=1s) 42 50
600Vac (t=1s) 42 42
690Vac (t=1s) 42 42
230÷690Vac (t=3s) 25 25
Neutral protection (%) OFF/50/100
Utilization category B
Suitability for insulation YES
Mechanical
endurance (cycles)
with maintenance 10000
without maintenance 5000
Electrical endurance (cycles) 3000
Opening time 15ms
Closing time 30ms
Visualization of contacts position S
Visualization of charged/ discharged springs S
Auxiliary contacts S*/O
Fault contacts S
Shunt trip O
Closing coil O
Undervoltage release O
Undervoltage release with time delay O
Motor operator O
Mechanical counter O
* Standard version with n°1 NO/NC (max n° 6 option contacts 0 281 75).
S=Standard O=Optional
8.1. General features
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