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.