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APS- 4P Low Voltage SPD CLASS I+II 230VAC

Main Features:

  • Encapsulated spark gap technology to guarantee reliability in a rugged environment
  • Comply with IEC61643-11 standard, surge arrester for use in TN-S systems
  • Discharge capacity Iimp 25kA 10/350 per pole
  • Low voltage protection level
  • With remote signalling contact and failure indicator optional


Type 1+2 surge arrester designed for low-voltage power supply system protection against surges and even direct lightning strikes at the boundaries of lightning protection zone 0B -2 and higher



Part. No G25/320-S/4P
In accordance with IEC 61643-11:2011; UL1449-4th
Category IEC / VDE I+II / B+C
Max. Continuous Operating Voltage (V) AC/DC 320/420
Nominal Discharge Current (8/20) In 25kA
Max. Discharge Current (8/20) Imax 100kA
Lightning Impulse Current (10/350) Iimp 25kA
Voltage Protection Rating @1.2/50 <1.6kV
Response Time ≤100 ns
Short-circuit Current Rating (Isccr) & Follow Current Interrupt Raing (Ifi) Isccr =10kArms ; Ifi≥10kArms@255Vac
Backup Fuse (only if not provided by mains) 250A gL / gC
Operating Temperature Range - 40 °C ~ + 80 °C
Cross-section of Connection Wire Single-strand 35mm2 ; multi-strand 25mm2
Mounting 35mm DIN-rail in accordance with EN 50022 / DIN46277-3
Enclosure Material Thermoplastic; extinguishing degree UL94 V-0
Degree of Protection IP20
Installation Width 8 modules, DIN 43880
Thermal Disconnector Internal green – normal; red – failure
Remote Alarm Contact Optional
Approvals, Certifications CE
Additional Data for Remote Alarm Contacts
Remote Alarm Contact Type Isolated Form C
Switching Capability Un / In AC: 250V/0.5A
DC: 250V/0.1A; 125V/0.2A; 75V/0.5A
Max. Size of Connecting Wire Max. 1.5mm2 (or # 16AWG)

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