BLUE SEA M-Series Battery Switch 6004

Part No.? BS/6004
Switch Type? Single Circuit ON-OFF
Color Red
Maximum Voltage 48V DC
Continuous Rating? 300A
Intermittent Rating? 500A (5 min)
Cranking Rating 30 sec? 900A
Mounting Holes Accept #10 Screw
Terminal Stud Size 3/8″ – 16 (M10)
Weight 0.62lb (0.28 kg)

NEW?- Available February 2017


BLUE SEA M-Series Battery Switch 6004 -?Single Circuit ON-OFF with Locking Key – Red


300 Amps continuous rating for outboards and small gasoline or diesel engines.

The BLUE SEA M-Series Battery Switch 6004 is the mini battery switch that outperforms switches twice its size.

Blue Sea Systems’ m-Series Battery Switch, available in four practical models, is a great choice for most boaters. Its “mini” size, flexible mounting options, and current-carrying capacity make this battery switch a wise choice. The m-Series switch is versatile enough to meet just about any battery switch application for small and medium-size boats. It is very compact, measuring less than 3″ by 3″ (7.6cm X 7.6cm), making it ideal for installations where there are size and space constraints. In spite of its size, its current-carrying capacity exceeds many standard-size switches.


  • Tin-plated copper studs for maximum conductivity and corrosion resistance
  • Studs accept 3/8″ (M10) ring terminals
  • 7/8″ (22 mm) stud length accepts multiple cable terminals
  • Blue Sea Systems one-piece terminal stud design never loosens over time
  • One-piece stainless flange nuts ensure safe and secure connections
  • Isolating cover protects rear contacts
  • Breakout tabs allow wire access in any direction


Additional information

Weight 0.28 kg