Compact Type 2+3 hard wired surge protector
MSB10-31-230
MSB10-31-230
Part Number: 561223
  • Compact type 2 (or 3) surge protector
  • Wall mounting and hard wired connection
  • Status indicators
  • IP65
Installation Sheet

MSB10 surge protectors Type 2 (or 3) are designed for effective protection of sensitive equipment, in addition to the surge protector installation (coordination surge protector). These surge protectors utilize a compact and economica scheme based varistors, to obtain a power flow relevant for secondary protection.


SPD type 2+3
Network 230/400 V 3-phase+N
AC system TN
Nominal line voltage Un 230/400 Vac
Max. AC operating voltage L-N Uc 255 Vac
Temporary Over Voltage (TOV) Charasteristics - 5 sec. UT 335 Vac withstand
Temporary Over Voltage (TOV) Charasteristics - 120 mn UT 440 Vac disconnection
Operating current Ic < 1 mA
Follow current If None
Nominal discharge current In 5 kA
Max. discharge current Imax 10 kA
Withstand on Combination waveform IEC 61643-11 Uoc 6 kV
Withstand on overvoltages IEEE C62.41.1 10 kV / 10 kA
Protection mode(s) Common/Differential mode
Protection level L/N Up L/N 1.5 kV
Protection level L/PE Up L/PE 1.5 kV
Protection level CM/DM Up mc/md 1.5 kV / 1.5 kV
Admissible short-circuit current Isccr 10 000 A
Technology MOV+GDT
Connection to Network wires
Mounting Wall or plate
Housing material Thermoplastic UL94-V0
Operating temperature -40/+85°C
Protection rating IP65
Failsafe mode Disconnection
Disconnection indicator 3-Green led OFF
Voltage/operating indicator 3-Green Led ON
Dimensions See diagram
Weight 0.105 kg
Standards compliance IEC 61643-11 / EN 61643-11 / UL1449 4ed.
Certification UL / EAC / TUV
Thermal disconnector Internal
Installation ground fault breaker Type 'S' or delayed