64
DMX
3
8. Tecnical specifications
8.1 General features
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*
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° 4 NO/NC (max n° 6 option contacts 0 281 75).
S=S
tandard O=Optional