Compact Type 2+3 hard wired surge protector
MSB10-24
MSB10-24
Part Number: 561321
  • Compact type 2 and 3 surge protector
  • For 24 Vac powerline
  • No leakage current
  • Wall mounting and hard wired connection
  • Failsafe behaviour : SPD disconnection + Light indicator off
  • IP65
  • EN 61643-11 and IEC 61643-11 compliance
CITEL_Certif_ROHS_MSB10.pdf 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 24 V single-phase
AC system TT/TN
Nominal line voltage Un 24 Vac
Max. AC operating voltage L-N Uc 30 Vac
Operating current Ic None
Follow current If None
Nominal discharge current In 1 kA
Max. discharge current Imax 2 kA
Withstand on Combination waveform IEC 61643-11 Uoc 3 kV
Protection mode(s) Common/Differential mode
Protection level Up 200 V
Protection level L/N Up L/N 200 V
Protection level L/PE Up L/PE 200 V
Protection level CM/DM Up mc/md 200 V/200 V
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 IP20
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
Certification UL / EAC / TUV