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APS-1P Low Voltage SPD Class I+II

Key features: – 

  • Encapsulated spark gap technology to ensure dependability in a harsh environment 
  • Comply with the IEC61643-11 standard. 
  • Imp 25kA 10/350 discharge capacity per pole 
  • Protection from L-N/PE 
  • Protection from low voltage 
  • A remote signalling contact and a failure indicator are included. 


Surge arresters of type 1+2 are intended to protect low-voltage power supply systems from surges and direct lightning strikes at the edges of lightning protection zones 0B -2 and higher. 1P Low Voltage SPD Class I+II surge protection for data line networks in data centres, water treatment plants, and wind turbine installations. With the RJ45 sockets, they enable a flexible and simple installation. When the cartridges reach the end of their useful life, they can be removed and replaced while the sockets remain operational. 



Part. No G25/320-S
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 2 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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1 review for APS-1P Low Voltage SPD Class I+II

  1. Georgia

    Great device for protecting electrical system from surges. This low voltage single phase SPD is reliable. I trust it to keep my equipment safe.

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