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Blue Sea Systems

BS 7701 |BS 7703 ML remotely controllable battery master switch

BS 7701 |BS 7703 ML remotely controllable battery master switch

The Blue Sea BS 7701 ML solenoidis a remote battery switch (RBS)for 12 V DC systems. With a continuous current rating of 500 A, it electrically disconnects the battery. As a magnetic latching relay, it consumes no currentin the ON/OFF state. Unlike the BS 7700, it does not have a manual override knobdirectly on the relay.

Regular price €249,90 EUR
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BlueSea BS 7701 and BS 7703 ML Solenoid Magnetic Switches provide safe and convenient on/off switching between the battery and loads. The 500 Amp magnetic latching switch allows for high current draw under load, where manual operation is not required.

KEY FEATURES

  • 500 Amp continuous rating for engine, inverters, house loads, and paralleling battery banks for emergency starting
  • Magnetic Latching (ML) consumes no power in "ON" or "OFF" operating states, and only requires low current for a very short time when changing states
  • 3/8"-16 tinned copper studs for maximum conductivity and corrosion resistance
  • 7/8" (22 mm) stud length accepts multiple cable lugs
  • Label recesses for circuit identification
  • Silver alloy contacts provide high reliability for switching live loads
  • Blue Sea 2145 remote control switch included

TECHNICAL DETAILS

  • Circuit connection: tinned wire
  • Nominal voltage: 12V or 24V DC
  • Manual control: no
  • Coil function: Bi-Stable (Automatic unlocking provides 500A circuits and features of current ML Remote Battery Switches, but can be controlled with SPST or SPDT switches for applications where a normally open relay is desired.)
  • Mounting: #10
  • Operating current: 0mA
  • Terminal bolt torque: 15.82 Nm
  • Continuous load current: 500 Amp.
  • Peak load current: 700A (5 min)
  • Cranking current 30 sec: 1450A DC (the current required by the starter before starting the engine. The cranking current varies significantly during the start cycle. Initially, there is a large current surge required to overcome the inertia and compression of the engine. This surge can be two to four times the average cranking current. Cranking current is used for sizing batteries, cables, and battery switches.)
  • Recommended cable gauge: 2x (4/0)
  • Terminal ring diameter: 29.97 mm
  • Terminal bolt length: 22.23 mm
  • Terminal bolt size: 3/8" - 16 (M10)
  • Weight: 0.79 kg