Compact Type 2+3 hard wired surge protector
MSB10-480(UL)
MSB10-480(UL)
Part Number: 561801
  • Compact type 2 (or 3) surge protector
  • Wall mounting and hard wired connection
  • Status indicators
  • IP66
  • UL1449 ed.4

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 347-480 Vac single-phase
AC system TT/TN
Nominal line voltage Un 480 V
Max. AC operating voltage L-N Uc 550 Vac
Temporary Over Voltage (TOV) Charasteristics - 5 sec. UT 700 Vac withstand
Temporary Over Voltage (TOV) Charasteristics - 120 mn UT 915 Vac disconnection
Operating current Ic < 1 mA
Follow current If None
Nominal discharge current In 3 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 Up 1.8 kV
Protection level L/N Up L/N 1.8 kV
Protection level L/PE Up L/PE 1.8 kV
Protection level CM/DM Up mc/md 2 kV/2 kV
Admissible short-circuit current Isccr 10 000 A
Technology MOV
Connection to Network wires
Mounting Wall or plate
Housing material Thermoplastic UL94-V0
Operating temperature Tu -40/+85°C
Protection rating IP66
Failsafe mode Disconnection
Disconnection indicator Green led OFF
Voltage/operating indicator Green Led ON
Dimensions See diagram
Standards compliance IEC 61643-11 / EN 61643-11 / UL1449 4ed.
Certification UL / EAC
Thermal disconnector Internal
Installation ground fault breaker Type 'S' or delayed