SPT25-320/3(S)+1
Internal Configuration
Connection Diagram
  • For lightning current Equipotential Bonding in accordance with IEC 62305
  • 25kA (10/350 µs) for protective level I, II, III and IV (LPL I/II/III/IV)
  • Tested according to IEC 61643-11 for Type I and II Surge Protection
  • Have potential-free changeover contact for remote signaling
Model No: SPT25-320/3(S)+1     320
IEC Electrical
Nominal AC Voltage (50/60Hz)     230 V
Maximum Continuous Operating Voltage (L - N) Uc 320 V
(N - PE) Uc 255 V
Nominal Discharge Current (8/20 μs) (L - N) / (N - PE) In 25 kA/100kA
Maximum Discharge Current (8/20 μs) (L - N) / (N - PE) Imax 100kA
Impulse Discharge Current (10/350 μs) (L - N) / (N - PE) Iimp 25 kA/100kA
Total Discharge Current (10/350 μs)   Itotal 100kA
Specific Energy (L - N) / (N - PE) W/R 156 kJ / Ω / 2.5 M kJ / Ω
Charge (L - N) / (N - PE) Q 12.5 As / 50 As
Voltage Protection Level (L - N) / (N - PE) Up 1600 V/1500 V
Follow Current Interrupt Rating (N - PE) Ifi 100 ARMS
Response Time (L - N) / (N - PE) tA <25ns>
Back-Up Fuse (max)     315 A gL / gG
Short-Circuit Current Rating (AC) (L - N) ISCCR 50 kA
TOV Withstand 5s (L - N) UT 335 V
TOV 120min (L - N) UT 440 V
TOV Withstand 200ms (N - PE) UT 1200 V
Number of Ports     1

 

Mechanical & Environmental
Terminal Screw Torque   Mmax 26.5 lbf.in [3.0 Nm]
Conductor Cross Section (max)     2 AWG (Solid, Stranded)/ 4 AWG (Flexible)
    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
Fault Indication     Red (Defect)
RC Switching Capacity     AC:250V /0.5 A; DC:250V/ 0.1A; 125 V / 0.2 A; 75 V / 0.5A
RC Conductor Cross Section (max)     16 AWG (Solid) / 1.5 mm2 (Solid)
IEC- EN Category     Class I+II, Type 1+2
Compliance     IEC 61643-11:2011
EN61643-11:2012
Location of Use     Main Distribution Boards
Network Systems     TT, TN-S
Mode of Protection     L-N / L-N, N-PE
Surge Ratings     Iimp = 25 kA/ 100 kA (10/350 μs)
In = 25 kA/ 100 kA (8/20 μs)
Protective Elements     High Energy MOV and GDT
Housing     Monoblock Design
  • CE
  • RoHS

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