INDEXA VT300BI4 VT300 Bus Isolator / Distributor 4-Way (28452)

In large security and alarm systems, a single fault on one bus segment can bring down the entire network. The INDEXA VT300BI4 Bus Isolator / Distributor solves this by dividing the VT300 bus into four galvanically isolated branches, preventing fault propagation and extending the bus length.

Who is it for

Installers and integrators working with INDEXA VT300 bus systems who need to expand the network beyond a single segment or protect critical areas from wiring faults. It is suitable for DIN rail mounting in control panels.

Main features

• Four isolated bus branches for flexible topology
• Galvanic isolation prevents fault propagation between segments
• Extends total bus length: each branch supports up to 300 m
• Supports up to 32 devices per branch
• LED status indicators for power and bus activity
• DIN rail mounting (4 TE width)
• 12 V DC supply via bus or external
• Low standby current consumption of approx. 20 mA

Specifications

• Product Type: Bus Isolator / Distributor
• Bus System Compatibility: INDEXA VT300 Bus
• Number of Bus Branches: 4
• Isolation Type: Galvanic Isolation
• Mounting Type: DIN Rail (4 TE)
• Input Voltage: 12 V DC (via bus or external)
• Current Consumption (Standby): Approx. 20 mA
• Operating Temperature Range: -10°C to +50°C
• Connection Type: Screw Terminals
• Status Indicators: LED for Power/Bus Status
• Housing Material: Plastic
• Max. Bus Length per Branch: 300 m
• Max. Devices per Branch: 32
• Application: Security and Alarm Systems

Tips

Use the VT300BI4 to isolate sections of the bus in large buildings, so a short circuit in one zone does not affect the rest of the system. Ensure proper termination and power supply for each branch to maintain signal integrity.