UST-10G Control and Signalling Terminal

Name: UST-10G
Brand: IEL

Control and signalling terminal for local and remote operation, signalling and graphical display of MV/LV installations.

UST-10G is used for control, signalling and state display of medium-voltage and/or low-voltage switchgear. Switching devices can be operated locally from the keypad or remotely through communication, while the graphical LCD shows the installation configuration and dynamically updates when device states change.

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Graphical LCD display

Displays switchgear configuration with device and feeder labels.
Local and remote control

Control of disconnectors, breakers and earthing switches via keypad or communication.
8-LED alarming

Alarm sequences according to DIN 19235 or ISA, with alarm and event lists.
Autoreclosing option

Can implement automatic reclosing when linked with a protection relay.
Control-centre communication

RS485, fibre-optic or Ethernet with MODBUS RTU/TCP and IEC 60870-5-104.
UST DIALOG

Parametrisation and selection of typical switchgear configurations.

Switchgear status signalling: 24 inputs (K1...K24)
General inputs: 8 inputs (I1...I8)
Input type: voltage-free contact, NO or NC
Input supply: 48 V DC internal, galvanically isolated; external on request
Control outputs: 16 (O1...O16)
Audible signalling / fault: 1 NO contact for siren, 1 NC contact for fault
Relay outputs: NO contact, Umax 250 V, Imax 5 A
Number of reclosing attempts: up to 5 attempts
Autoreclosing times: fast T 0.1-10 s; slow T 10-1000 s; APU T 1 s
Communication: RS485/fibre MODBUS RTU; optional Ethernet IEC 60870-5-104 or MODBUS TCP
Software: UST DIALOG
Power supply: 24, 48, 110 or 220 V DC +45% / -20%; 110 or 220 V AC +10% / -20%
Consumption: 10 VA
Temperature range: 0...+50 °C; extended -20...+60 °C
Mounting and dimensions: panel DIN 43700, 192 x 96 x 90 mm