HD-Series Heavy Duty On-Off Battery Switch

HD-Series Heavy Duty On-Off Battery Switch
 HD-Series Heavy Duty On-Off Battery SwitchHD-Series Heavy Duty On-Off Battery Switch 
Our Price  £59.15
List Price  £112.72
(Exc. 20% VAT)(£70.98 Inc. VAT)

Part Number:  BSS3000
Brand:  Blue Sea



1 In Stock, Ready to Despatch

HD-Series Heavy Duty On-Off Battery Switch


Switches a single battery to a single load group

  • Ignition protected—safe for installation aboard gasoline powered boats
  • Case design allows surface or rear panel mounting
  • Accepts two 4/0 AWG (95mm²) battery cables

Brand: Blue Sea Systems 

Part Number: 3000


  • Switch Type: Single Circuit ON-OFF*
  • Colour: Grey
  • Switch Positions: 2
  • Battery Combine: No
  • Alternator Field Disconnect**: No
  • Maximum Voltage: 32V DC
  • Terminal Stud Torque: 220 in-lb (24.86 Nm)
  • Continuous Rating***: 600A
  • Intermittent Rating****: 900A (5 min)
  • Cranking Rating 30 sec*****: 1750A
  • Battery Inputs: 1
  • Cable Clearance For 4/0 AWG Cables: 1.10in (27.94 mm)
  • Cable Quantity to Meet Ratings: Two Cables
  • Cable Size to Meet Ratings: 4/0 AWG (120mm²)
  • Mounting Holes Accept :1/4" (M6) Screw
  • Terminal Stud Size: 1/2" (M12)
  • Weight: 1.30lb (0.59 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.

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