Boost Electronics manufactures AC Coil Voltage and Contact Rating of 5 Amp. Boost Electronics manufactures Automation and Control Accessories. The AC Coil Voltage and Contact Rating of 5 Amp have technical specifications like: Ordering type no.: rp230a04-2co-m No. Of channel: 4 Contact arrangement: 2 co Looping all contact: yes Contact rating at: 5 amp PCB overall: 185 x 118.