Egis Battery Switches & Management
Egis M-Series, E-Series, and Heavy-Duty Series marine battery switches and dual-circuit switches from 300A to 600A. Plus Automatic Charging Relays (ACRs) and the XD Series 500A heavy-duty mechanical contactor.
Marine Electric Systems sells and installs Egis products in Annapolis, Maryland, including battery switches and DC power management for boats throughout the Chesapeake Bay region.
Egis Battery Switches & Management FAQ
What is a dual-circuit battery switch?
A dual-circuit switch puts two separate on/off switches in one housing, typically one for the house bank and one for the starting bank. It keeps the two circuits isolated while giving you one place to shut everything down. Pair it with an ACR if you want both banks charged automatically.
How do I match a battery switch to my system?
The switch's continuous rating should be at or above the most current the circuit will carry for long periods. Engine cranking is a short, high draw, so switches also list an intermittent rating. Check both against your loads and cable size.
Where should a battery switch be mounted?
Mount it in the positive cable as close to the batteries as practical, in a spot you can reach quickly in an emergency. Keep the cable runs short and well supported, and use properly sized battery cable and lugs.
