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Victron Master Switch Battery 12V/24V/48V 275A - Battery Cut On/Off Switch - Master Battery Isolator

Victron Master Switch Battery 12V/24V/48V 275A - Battery Cut On/Off Switch - Master Battery Isolator

SKU:VBS127010010

Brand: Victron

Supports 12V, 24V, and 48V systems for flexible installation. 275A continuous rating for demanding electrical loads. Corrosion resistant construction for harsh environments. Positive rotary action ensures clear on or off status. Helps protect batteries from discharge during storage. Dimensions: 69.5 x 76.3 x 69.5 mm Weight: 0.2 kg

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This is pre-order - Available in 7 – 10 days

Regular price £34.00 GBP
Regular price Sale price £34.00 GBP
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Product Details

The Victron Master Switch Battery 12V/24V/48V 275A offers reliable and convenient control for isolating your electrical system. Designed by one of the most trusted names in power management, this compact switch provides a secure way to disconnect onboard batteries during installation, servicing, or periods of storage. It forms an important safeguard against accidental discharge as well as helping to prevent electrical faults from developing when the system is not in use.

Constructed from durable, corrosion resistant materials, the switch is suitable for environments where moisture and vibration are common. This makes it ideal for marine installations, off grid power systems, commercial vehicles, and industrial equipment. The ergonomic rotary control provides a positive click when turned, so it is obvious when the system is connected or isolated. Clear visual indicators help avoid confusion and allow quick checks at a glance.

The switch supports systems operating at 12, 24, or 48 volts. With a continuous current rating of 275 amps, it can handle substantial loads in demanding applications. Whether you are protecting batteries powering inverters, navigation electronics, pumps, or specialist tools, the switch offers dependable control. This is particularly valuable in larger energy systems where safety and system health are priorities.

Installation is straightforward, with robust connection points designed for secure cable termination. Once fitted, access remains convenient even in tight spaces. The switch forms an effective part of a wider Victron Energy setup, working alongside chargers, inverters, and control hardware. For trade users, this provides consistency across a system and reassurance that components integrate smoothly.

By adding a master battery switch, you improve safety, prolong battery life, and reduce maintenance issues. It allows operators to easily shut down circuits when equipment is not required, reducing the risk of parasitic drain and unplanned downtime. For businesses and professional installers, this offers a practical and valuable upgrade to electrical system management.

Product Specifications

Electrical Specifications

  • Maximum Continuous Current: 275 A
  • One Minute Rating: 455 A
  • Cranking Rating (10 seconds): 1250 A
  • Maximum Operating Voltage: 60 VDC
  • Suitability: Ideal for 12V, 24V, and 48V battery systems

Connection & Terminals

  • Terminal Diameter: M10 (3/8 inch / 9.53 mm)
  • Terminal Material: Tin-plated copper for maximum conductivity and corrosion resistance
  • Hex Nut Material: Tin-plated copper
  • Recommended Torque: 70 lbf·inch / 8 N·m

Mechanical & Enclosure

  • Dimensions (L x W x H): 69.5 x 76.3 x 69.5 mm (2.7 x 3.0 x 2.7 inches)
  • Weight: 0.2 kg (0.4 lb)
  • Base Material: Glass fibre reinforced nylon
  • Mounting Options: Surface or rear panel mount
  • Cable Access: Features 4 easily removable side panels for flexible wiring installation

Key Features

  • Safety Isolation: The control knob is removable for safety and anti-theft isolation purposes.
  • Emergency Paralleling: Can be used to parallel connect a house battery to a starter battery to supplement a flat battery in emergencies.
  • Customization: Ships with 16 different label stickers (Inverter, House, Start, Radio, etc.) for easy system identification.
  • Ergonomic Design: Aesthetic and easy-to-operate knob design.

Standards & Safety

  • Ignition Protection: Meets ISO8846 and SAE J1171 standards.
  • Engine Room Rated: Safe for use in engine rooms and environments where explosive gases may be present.
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Victron Master Switch Battery 12V/24V/48V 275A - Battery Cut On/Off Switch - Master Battery Isolator
Victron Master Switch Battery 12V/24V/48V 275A - Battery Cut On/Off Switch - Master Battery IsolatorVBS127010010
Victron Master Switch Battery 12V/24V/48V 275A - Battery Cut On/Off Switch - Master Battery IsolatorVBS127010010
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