m-Series Mini On-Off Battery Switch with Knob - Red

Blue Sea Systems

SKU

Switches a single battery to a single load group

Ignition protected—safe for installation aboard gasoline powered boats
Case design allows surface, front panel, or rear panel mounting
Isolating cover with snap-on sections protects rear contacts

As low as £37.33

Details

Downloads

Specifications
Switch Type	Single Circuit ON-OFF*
Colour	Red
Switch Positions	2
Battery Combine	No
Alternator Field Disconnect**	No
Maximum Voltage	48V DC
Stud Size	3/8"
Terminal Stud Torque	120 in-lb (13.56 Nm)
Continuous Rating***	300A
Intermittent Rating****	500A (5 min)
Cranking Rating 30 sec*****	900A
Battery Inputs	1
Cable Clearance For 4/0 AWG Cables	1.12in (28.45 mm)
Cable Size to Meet Ratings	4/0 AWG (120mm²)
Mounting Holes	Accept #10 Screw
Stud Material	Tinned Copper
Stud Torque	120 in-lb (13.56 Nm)
Terminal Stud Size	3/8" - 16 (M10)
Weight	0.65lb (0.29 kg)

*Switches a single battery to a single load group

**Alternator Field Disconnect protects the diodes in the alternator in the event of the switch being switched to the OFF position while the engine is running. If the AFD is nor used to protect the alternator, an LED can be connected to the AFD terminals to indicate when the battery switch is in any position but OFF.

***The maximum current a switch is designed to conduct for an indefinite period.

****The maximum amount of current a switch is designed to carry for a minimum of a designated period of time.

*****Normally associated with 'cranking current' which is the current required by the starter circuit prior to engine starting. The cranking current varies significantly during the starting cycle. Initially, there is a large surge of current required to overcome the inertia and compression of the engine. This surge can be two to four times the average cranking current. Once the engine is turning there are peaks and valleys as the pistons go through the compression and exhaust cycles. The cranking current rating is used for sizing batteries, cables, and battery switches.