Woodward Provıdes Dıgıtal Transfer Swıtch Controller for ATS


Woodward’s DTSC-50 digital transfer switch controller is an economical controller for open-transition (break before make) ATS (automatic transfer switch) control for emergency stand-by applications with a single generator. When the DTSC-50 detects a utility failure, it commands the generator to start and transfers the load to the emergency source. The DTSC-50 performs an open-transition re-transfer when utility power is restored, allowing the engine to cool down before stopping. It can be utilized in 1Ph2W, 1Ph3W, 3Ph3W, and 3Ph4W systems.

The DTSC-50 displays voltage and frequency values for each phase, as well as engine hours, maintenance hours, and number of transfers. Active alarms are annunciated via the seven segment LED display. Separate LEDs show breaker status and source availability. Sealed soft-keys enable the user to start the generator and operate the transfer switch manually.

Features include:

  • Open-transition transfer
  • Utility-to-Generator application
  • Auto/manual operation
  • “Remote start” input
  • “Lock in AUTO mode” input
  • “Lock in MANUAL mode” input
  • Internal breaker interlock utilizing discrete inputs for breaker position detection
  • Adjustable timers
  • Event/Alarm log system
  • Freely configurable discrete I/O
  • PC and/or front display configuration
  • Six 7-Segment LED screen
  • True RMS voltage sensing
  • LED`s for source availability and breaker status
  • Password protection
  • Fully-enclosed housing
  • Removable terminal blocks
  • 6.5 to 40.0 Vdc powered


Power supply 12/24Vdc (6.5 to 32 Vdc)
Consumption max. 10W
Ambient temperature (storage) -30 to 85 °C / -22 to 185 °F
Ambient temperature (operation) -20 to 70 °C / -4 to 158 °F
Ambient humidity 95 %, non-condensing
Voltage AC input 480Vac true RMS
Accuracy Class 1
Discrete inputs (isolated) Range: 12/24Vdc (6.5 to 32 Vdc)
Relay outputs Isolated
Load (resistive) 2A@24Vdc and 250Vac
Front panel mounting Plastic housing
Dimension (WxHxD) 158 × 158 × 40 mm
Sealing IP54
Weight Approx. 450 g



Configuration Files


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