DMPR1-E-20kW | 230V 87A Dual Mode Thyristor Controller

Description DMPR1-E-20kW 230V Dual Mode Power Controller (87A) The DMPR1 Series Dual Mode Power Controller offers robust and versatile control for both single-phase (12kW/20kW) and two-phase (22kW/30kW) inductive/resistive loads up to 30kW at 415V AC. This advanced thyristor assembly features user-selectable control modes, including phase angle, burst firing, or a combination of both for optimised performance. With frequency tracking from 4Hz to 400Hz, it ensures reliable operation even in unstable supply conditions. Housed in a bespoke enclosure with easy access to signal and power terminals, the DMPR1 Series includes integral semiconductor fuses and heatsinks for a comprehensive power control solution. Applications Ideal for a wide range of industrial and commercial applications, including: Furnaces Ovens Dryers Air Curtains Hot Plates Heating and Ventilation Systems Inductive Loads such as Transformers Features Dual Mode Control: Phase angle, burst firing, or a combination Frequency Tracking: 4-400Hz for unstable supply conditions Integrated High-Speed Fuse for enhanced protection Adjustable Ramp Control: 1 to 30 seconds for smooth start-up Enclosed design with status indication LEDs Technical Specifications Power / Current Ratings: Single Phase: 12kW (52A), 20kW (87A) @ 230V rms Two Phase: 22kW (55A), 30kW (75A) @ 400V rms Input Voltage: 230V RMS ± 10%, 415V RMS ± 10% Phase to Phase (110V RMS option available on request) Supply Frequency: 4 to 400Hz active tracking Control Input Options: 0 to 5V DC up to 24V DC, Manual using 5kΩ Potentiometer, 0-20mA/4-20mA Alarms Relay Rating: 125V AC @ 2A LED Indicators: Power LED (Green) Status LED (Yellow): Brightness increases in phase angle mode, pulses in burst fire mode Fault LED (Red): Pulses for overheating, steady on for fuse failure Over-Temperature Protection: Trip at 90°C ± 1°C Fan activation at 55°C Power shutdown at 90°C Soft Start: 0-30 seconds Current Limit: Built-in, user resettable Cable Terminations: Phase Power & Earth: 10mm² (12/22kW), 16mm² (20/30kW) Remote Supply Auxiliary Alarm: 1.5mm² Control Signal: 1.5mm² Terminal Torque Settings: 4Nm for power terminals Fusing: 230V: 80ET (12kW), 100ET (20kW) 415V: 80ET (22kW), 100ET (30kW) Working Temperature: Maximum operational at 60°C Ingress Protection: IP20 Dimensions: Standard: 205mm (L) x 155mm (W) x 120mm (H) With Fan Cowl: 250mm (L) x 155mm (W) x 120mm (H) Fixing Centres: 4 x 5mm ø holes on 140mm (W) x 140mm (L) centers Weight: 12kW: 2.8kg 20kW: 3.5kg With Fan Cowl: add 0.52kg 22kW: 2.8kg 30kW: 3.5kg The DMPR1 Series Dual Mode Power Controller is a versatile and powerful solution for managing various industrial and commercial loads. Its dual-mode capability, frequency tracking, and robust protection features make it an ideal choice for ensuring efficient and reliable operation across a wide range of applications.