Finder designs relays to suit PV applications
Finder
45.31 and 66 Series relays
Finder has designed relays for photovoltaic (PV) inverters, domestic appliances and other equipment needing reinforced insulation, high ambient temperature handling and full disconnection contacts.
The latest product offerings comprise the 45.31 16A-rated mini printed circuit board (PCB) relay and three special variants of the 66 Series 30A-rated power relays.
With an extended 3mm contact gap, the single-pole NO 45.31 relay meets the requirements of the EN60730-1 standard for household use and is rated for operation at an ambient temperature up to 105C.
It has a high-sensitivity 24VDC coil rated at 360mW.
In common with the 66 Series specials, the 45.31 has been designed with an 8mm clearance and creepage distance, ensuring the safe separation of supply and output and reinforced insulation between coil and contacts, meeting the requirements of EN60335-1 (VDE0700).
The two-pole NO (DPST-NO) 66.22-x600, 66.22-x600S and 66.82-x600 30A power relays ensure a contact gap separation of 1.5mm, fully meeting the requirements of the VDE0126-1-1 standard for PV inverter applications.
In addition, the 600S variant provides a 5mm air gap between relay base and PCB for extra cooling, particularly in systems where forced air cooling is employed as with many PV inverters.
For added flexibility, the 66 Series relays provide the options of PCB and flange mounting and Faston 250 terminations.
A 35mm rail mounting adaptor is also available.
A range of coil voltages is offered, ranging from 6VDC through to 125VDC.
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