SURGE PROTECTION DEVICES
EP MERSEN COM 277
MERSEN reserves the right to change, update or correct, without notice, any information contained in this datasheet 
SURGE
PROTECTION
Surge-Trap® Monobloc STET23 Series - 20kA with EMI Filter
Surge-Trap® Pluggable STPT23 Series - 20kA
DIN-RAIL IEC TYPE 2+3 / CLASS II+III
 
2 Poles
 
 
 
  Un Uc Imax (8/20) In (8/20) Up   IL Remote
TT/TNS (1Ph+N)
STET23-20K150V-SPM 83230401 120 VAC 150 V 20 kA 10 kA ≤ 0 8 kV 20 A Yes
STET23-20K275V-SPM 83230403 230 VAC 275 V 20 kA 10 kA ≤ 1 2 kV 20 A Yes
STET23-20K275V-SPM
 
Replacement cartridges
 
 
 
  Un Uc Imax (8/20) In (8/20) Uoc Up  
L-N
SP23-20K150V 83230001 120 VAC 150 V 20 kA 10 kA 10 kV ≤ 0 8 kV
SP23-20K275V-LF 83230003 230 VAC 275 V 20 kA 10 kA 10 kV ≤ 1 5 kV
SP23-20K320V 83230002 230 VAC
277 VAC 320 V 20 kA 10 kA 10 kV ≤ 1 4 kV
N-PE
SP23-20K-N 83230000 Neutral 255 V 20 kA 10 kA 10 kV ≤ 1 5 kV
SP23-20K320V
SURGE PROTECTION DEVICES
EP MERSEN COM 278
MERSEN reserves the right to change, update or correct, without notice, any information contained in this datasheet 
Surge-Trap® Monobloc STMT23 Series
DIN-RAIL IEC TYPE 2+3 / CLASS II+III
 
2 Poles (Parallel)
 
 
 
  Un Uc/MCOV Imax
(8/20) In (8/20) Uoc MLV Up   Remote
TT/TNS (1Ph+N)
STMT23-20K275V-SP-S 83230510 230 V 275 VAC
365 VDC 20 kA 10 kA 10 kV ≤ 1 4 kV (L-N)
≤ 1 4 kV (N-PE)
≤ 1 4 kV (L-N)
≤ 1 4 kV (N-PE) No
STMT23-20K275V-SP-SM 83230511 230 V 275 VAC
365 VDC 20 kA 10 kA 10 kV ≤ 1 4 kV (L-N)
≤ 1 4 kV (N-PE)
≤ 1 4 kV (L-N)
≤ 1 4 kV (N-PE) Yes
STMT23-6K150V-SP-S 83230502 120 V 150 VAC
200 VDC 6 kA 3 kA 6 kV ≤ 0 61 kV (L-N)
≤ 1 03 kV (N-PE)