Description
Boat part number 1116990 is a new remote operated battery switch with optical sensor from BEP Marine, part number 720-MD0. Commonly used on MJM Yachts, part number 205065, but may be used on other boats.
This battery switch is constructed out of gray plastic with a red selector knob. It measures approximately 4″ L x 4″ W x 4 1/4″ H overall. Rated for 500A continuous, 2500A crank, and 50VDC max. Connects with (2) 3/8″ Dia. studs and (1) 3-pin female Wago MCS connection. and mounts with (4) 1/4″ Dia. holes set apart 3 3/8″ center to center.
Specifications:
- Boat Manufacturer: MJM Yachts
- Part Number: 205065
- Part Manufacturer: BEP Marine
- Part Number: 720-MD0
- Material: Plastic
- Color: Gray / Red
- Finish: Matte
- Continuous Rating: 500A
- Overall Dimensions: 4″ L x 4″ W x 4 1/4″ H
- Mounts: (4) 1/4″ Dia. holes set apart 3 3/8″ CTC
- Connections: (2) 3/8″ Dia. Studs / (1) 3-pin Female Wago MCS



![Shadow-Caster Accent Lighting Flex Strip 8′ Terminated w/20′ of Lead Wire[SCM-AL-LED-8]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/shadow-caster-accent-lighting-flex-strip-8-terminated-w-20-lead-wire-scm-al-led-.webp)
![Shadow-Caster Courtesy Light w/2′ Lead Wire – 316 SS Cover – Great White – 4-Pack[SCM-CL-GW-SS-4PACK]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/shadow-caster-courtesy-light-w-2-lead-wire-316-ss-cover-great-white-4-pack-scm-c.webp)
![Ocean Signal RescueME EDF1 Electronic Distress Flare – 7 Mile Range[750S-01710]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/ocean-signal-rescueme-edf1-electronic-distress-flare-7-mile-range-750s-01710.webp)

![Xantrex C-Series Solar Charge Controller – 40 Amps [C40]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/xantrex-c-series-solar-charge-controller-40-amps-c40.webp)
![Blue Sea 1455 4 Position Switch CLB Square[1455]](https://www.durablemarinebattery.com/wp-content/uploads/2026/08/blue-sea-1455-4-position-switch-clb-square-1455.webp)
