BEP 2023 Catalog BATTERY MANAGEMENT 14 On/Off Battery Switches For isolation of a single positive supply e.g. as a main House or Start battery switch Double Pole On/Off Battery Switches Used where positive and negative supplies must be isolated at the same time. On/Off Double Pole ◆ Emergency Parallel option Part # 770-KEY-EP. ‡120mm2 or 4/0 cable required to meet rating. On/Off Switch Double Pole Switch Selector Switch Selector w/ Field Disconnect EZ-Mount Standard EZ-Mount Standard EZ-Mount Standard Standard Part # 770-EZ 770* 770-DP-EZ 770-DP 771-S-EZ 771-S 771-SFD OEM # 770-EZ-B 770-B 770-DP-EZ-B 770-DP-B 771-S-EZ-B 771-S-B — Mounting Surface ONLY Surface, Rear or Front Surface ONLY Surface, Rear or Front Surface ONLY Surface, Rear or Front Surface, Rear or Front Voltage 48V DC (for 12–48V systems) 48V DC (for 12–48V systems) Rating‡ 400A Cont / 600A Inter / 1500A Crank 400A Cont / 600A Inter / 1500A Crank Dims 3.85" x 3.85" x 3.62" (98 x 98 x 92 mm) 3.85" x 3.85" x 3.62" (98 x 98 x 92 mm) Operation On/Off 1-2-Both-Off Stud 2x 10 mm (3/8") 4x 10 mm (3/8") 3x 10 mm (3/8") 770-DP-EZ Selectors (771-S-EZ & 771-S) & Selector with Field Disconnect (771-SFD) Battery Switches Power requirements on boats have increased, and these Selector switches offer high power capacity (400A continuous), the ability to easily fit doubled cables, and conform to the industry standard mounting footprint (Guest, Perko, Blue Sea Systems). Please note selector switches will not separate electronics from harmful engine starting spikes. 1 2 Selector Switch with Alternator Field Disconnect 771-S Pro Installer Battery Switches SAFETY NOTE 770-DP & 770-DP-EZ: These switches are not recommended for switching house and start battery systems at the same time, for safety reasons. You may need to isolate your engine battery in an emergency, but not your house battery which typically powers the communications. For this application please use the new Dual Bank Control Switch (772-DBC or 772-DBC-EZ) or one of our battery switch clusters. Related Products Label Sets page 84