Surge Protection Device Type 2 (3 Phase)

For surge voltage protection equipotential bonding according to IEC 60364-4-44
Discharge capacity of 40kA (8/20 µs) per pole through high-performance varistors
Modular connectable arrester with cut-off unit and visual status display
Locking mechanism with vibration protection and voltage keying
Have potential-free changeover contact for remote signaling

Model No: SPT40-275/3(S)+1			275
IEC Electrical
Nominal AC Voltage (50/60Hz)			230 V
Maximum Continuous Operating Voltage	(L - N)	U_c	275 V
Maximum Continuous Operating Voltage	(N - PE)	U_c	255 V
Nominal Discharge Current (8/20 μs)	(L - N) / (N - PE)	I_n	20kA/20kA
Maximum Discharge Current (8/20 μs)	(L - N) / (N - PE)	I_max	40kA/40kA
Voltage Protection Level	(L - N) / (N - PE)	U_p	1500 V/1000 V
Follow Current Interrupt Rating	(N - PE)	I_fi	100 A_RMS
Response Time	(L - N) / (N - PE)	t_A	<25ns>
Back-Up Fuse (max)			125 A gL/gG
Short-Circuit Current Rating (AC)	(L - N)	I_SCCR	25 kA / 50 kA
TOV Withstand 5s	(L - N)	U_T	335 V
TOV 120min	(L - N)	U_T	440 V
TOV 120min	(L - N)	Mode	Safe Fail
TOV Withstand 200ms	(N - PE)	U_T	1200 V
Number of Ports			1

UL Electrical
Maximum Continuous Operating Voltage (AC)	(L - N) / (N - PE)	MCOV	275V/255V
Volatage Protection Rating	(L - N) / (N - PE)	V_PR	900V/1000V
Nominal Discharge Current (8/20 μs)	(L - N) / (N - PE)	I_n	20kA/20kA
Short-Circuit Current Rating (AC)	(L - N)	I_SCCR	150kA

Mechanical & Environmental
Terminal Screw Torque	M_max	39.9 lbf.in [4.5 Nm]
Conductor Cross Section (max)		2 AWG (Solid, Stranded)/ 4 AWG (Flexible)
Conductor Cross Section (max)		35 mm² (Solid, Stranded) / 25 mm²(Flexible)
Mounting		35 mm DIN Rail, EN 60715
Degree of Protection		IP 20 (built-in)
Housing Material		Thermoplastic: Extinguishing Degree UL 94 V-0
Thermal Protection		Yes
Operating State / Fault Indication		Green (ok) / Red (defect)
RC Switching Capacity		AC:250V /0.5 A; DC:250V/ 0.1A; 125V / 0.2 A; 75 V / 0.5A
RC Conductor Cross Section (max)		16 AWG (Solid) / 1.5 mm² (Solid)
IEC -EN Category		Class II/Type 2/Type 1 CA
Compliance		IEC 61643-11:2011 EN 61643–11:2012 ULN1449 4th Edition
Location of Use		Sub Distribution Boards
Network Systems		TT, TN-S
Mode of Protection		L-N, N-PE
Surge Ratings		I_n = 20 kA (8/20 μs)
Protective Elements		High Energy MOV and GDT
Housing		Pluggable Design