Ultra Compact Type 2 hard wired surge protector
Part Number: 561313
  • Ultra compact type 2 (or 3) surge protector
  • 24 Vac or 24 Vdc version available
  • LED indicator
  • IP20
  • EN 61643-11, IEC 61643-11, UL1449 ed.4 compliance
Installation Sheet

MSB6 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 ultra compact and economica scheme based varistors, to obtain a power flow relevant for secondary protection. The operating condition of the arrester is signaled by buzzer.

Select another reference:

SPD type
following IEC test
2 (ou 3)
24 Vac - 30 Vdc
Nominal line voltage
24 V
Max. AC operating voltage L-N
30 Vac-38 Vdc
Max. DC operating voltage
38 Vdc
Temporary Over Voltage (TOV) Charasteristics - 5 sec.
without disconnection
36 Vac withstand
Temporary Over Voltage (TOV) Charasteristics - 120 mn
without disconnection or with safety disconnection
42 Vac disconnection
Operating current
Continious current at Uc
Follow current
Nominal discharge current
15 x 8/20 µs impulses
0.5 kA
Max. discharge current
max. withstand @ 8/20 µs by pole
2 kA
Withstand on Combinaison waveform IEC 61643-11
Class III test: 1.2/50µs - 8/20µs
1 kV
Admissible short-circuit current
3 000 A
Protection mode(s)
Common/Differential mode
Protection level
@ In (8/20µs)
0.18 kV
Protection level L/N
@ In (8/20µs)
0.18 kV
Protection level L/PE
@ In (8/20µs)
0.18 kV
Protection level CM/DM
@ In (8/20µs)
0.18 kV/0.18 kV
Technology MOV+GDT
Connection to Network wires
AC outlet or screw terminal
Housing material Thermoplastic UL94-V0
Operating temperature -40/+85°C
Protection rating IP20
Failsafe behavior Disconnection
Disconnection indicator Led OFF
Voltage/operating indicator Green Led ON
See diagram
Standards compliance
IEC 61643-11 / EN 61643-11 / UL1449 4ed.
Installation ground fault breaker Type 'S' or delayed
Thermal disconnector Internal