On/Off Battery Switch
770
400A On/Off (Retail Packed)
770-B
(Bulk Packed)
www.bepmarine.com | www.mastervolt.com | www.marinco.com
A powerful new generation battery switch with outstanding performance and features for both the
installer and end user. Three mounting options: surface, rear panel and front panel mounting, plus
optimised cable access makes installation a breeze. Pro installer switches set the new benchmark
with outstanding ergonomics. Intuitive look/feel and are engineered from the fi nest materials to with
stand the harsh marine environment.
Features & Benefi ts:
• Industry standard footprint
• Three mounting options – surface, rear-panel and front-panel
• Compatible with metric and imperial mounting fasteners
• User friendly design
• Removable knob for isolation/safety
• Includes back cover and three side panels for security and cable protection
• Designed to withstand harsh marine environments
• High temperature reinforced plastics
Specifi cations:
• Continuous rating: 400A
• Intermittent rating: 600A
• Cranking rating: 1500A
• Connection stud size: M10 (3/8”)
• 12-48V DC (Higher voltage applications on request)
• IP66 – protection from powerful water jets
• Ignition protected
• Independently tested to meet UL1107 standards
• CE
5 YEAR WARRANTY
Installation Instructions: IMPORTANT! Read before installing
• It is recommended that electrical terminations and connections are carried out by a marine electrical technician.
• Negative terminations, and Positive terminations must be to the same numbered studs i.e. both Negatives must be
connected to studs numbered “1”, or both Negatives connected to studs numbered “2”. Failure to do this will result
in short circuit or fi re!
• These battery switches are for isolation purposes and are not designed for switching under load.
Ensure there are no circuits with high inductive loads directly connected to the switch in order to prevent any
sudden in-rush of current which may cause damage to the switch.
• Although specially selected chemical resistant materials have been used, we recommend that for maximum product
life only plastic safe corrosion inhibiting sprays are used.
• Ensure all cables are sized correctly for the loads they carry. Please refer to www.bepmarine.com to calculate
correct cable sizes.
• Ensure all electrical connections are correctly tightened to prevent any damage to the battery switch.
SURFACE
MOUNT
REAR
PANEL
MOUNT
FRONT
PANEL
MOUNT
Surface Mount Instructions
1. Choose mounting location on a fl at surface close to the batteries
2. Select panhead (or similar) screws for mounting - use either M5 or 10g imperial (not included)
3. Knock or drill out plastic skin from screw holes in backplate
4. Select panhead (or similar) machine screws and nuts to secure switch to backplate - use either M6 x 40mm
or 0.25” x 1.5” (not included). Alternatively longer screws should be used if bolting all the way through the
bulkhead/surface
5. Place nuts for machine screws into nut recesses, then screw backplate into position
6. Connect cables to studs ensuring that batteries and loads are correctly fi tted
7. Check that spring washers are fi tted beneath nuts
8. Tighten the stud nuts to 13.5 Nm (10 lbf)
9. Slot the side panel(s) into the backplate as required
10. Clip battery switch and cable assembly into backplate
11. Secure switch in place with machine screws, engaging into nuts under backplate
12. Ensure cables are secured to ISO/ABYC standards, and that cables are supported so they are not placing
unnecessary strain on the battery switch studs (see diagram)
13. With switch in “OFF” position connect battery positive leads at battery
14. Check switch operation (as per reverse page)
TO
RQUE
Plastic safe
Petroleum
based
solvents
TO
RQ
UE
TORQUE
Panhead
Cheesehead
Sockethead
