Modular voltage surge arrester 8/20 conforming to the latest IEC / EN standards Class III (Type 3), to protect against the effects of indirect lightning strikes and the resultant induced voltages.
The units are suitable for both DC floating or Earthed systems and are wired in parallel and the need of fusing is not required. These units are particularly suitable for DC power supply protection and telecommunication applications.
The unit has a front mechanically driven flag indicator per pole, green for healthy and red for fault, plus a mechanically driven auxiliary N/C contact. In a healthy state the contact is made, In the event of the MOV’s failing due to an intense or multiple surges the contact will change state to open (also indicated by the red flag). In this state protection has been lost, the unit will need replacing.
Category: Class III / Type 3
Protection via: High energy MOV’s (Metal Oxide Varistors) & GDT (Gas Discharge Tube)
Response time floating system: <25n Sec
Response time Earthed system: <100n Sec
Thermal protection: Yes
Operating temperature range: -40°C to +80°C
Terminal cross section: 6mm² stranded cable
Module size: 1 (18mm)
Remote contact: Yes
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48VDC (510 836)
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120VDC (510 838)
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