TVR Instruments Measuring Power Protection LVD Distribution & Panel Building




Tel: 01206 575755

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Automatic mains failure units

The unit provides for automatic transfer of a load from mains to generator in the event of a mains failure. Intended for unattended operation, it is able to detect failure of any phase of the mains and to start and switch over to a generator if the mains voltage goes outside pre-set limits. Both automatic and manual control are possible. A test mode is also available which allows the generator to be run without taking the load.

  • Log last 50 events & alarm information wiht measured values
  • Statistics records
  • Mains & Generator phase sequence control
  • Selectable Resistive sender types; Pt-100 VDO, US, GM, Ford, Datcon, etc...
  • CanBus J1939 ECU communication
  • SPN, FMI and OC values reading from engines via J1939
  • Remote Start/Stop Speed and Idle mode Control via J1939
  • Local Remote Control and Visualisation function

▼ Datasheet
▼ Manual

TVR Online Shop

Features Description
LCD Languages English/Chinese, English/Dutch, English/Turkish, English/Spanish, English/French, English/Russian
Inputs 5x Configurable digital, 3x Analogue senders, Magnetic Pickup
Outputs 6x Configurable transistor, Mains and Generator Contactor Outputs
Current Measurement 3 phases CT inputs 
Voltage Measurement 3 phase mains, 3 phase generator
Dimensions 158mm x 111mm x 67mm
Protection Class NEMA 4X IP65 at front side
Operating Range
DC Battery Supply range 8 to 32Vdc, max.operating current is 370mA
Sender Measurement 0 ... 1300 ohm, Accuracy: 1%FS, resolution: 1 ohm
Operating / Storage Temp. -20°C with +70°C / -40°C with +80°C
Embedded WEB server
Serial ModBus


  TVR Instruments Limited, 143 Butt Road, Colchester CO3 3DP, Essex, United Kingdom - Tel: +44 (0)1206 575755 - Email /
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