DMPR3-E-36kW | 50A Three-Phase Thyristor Regulator | 415V

Description DMPR3-E 36kW 415V Enclosed Three-Phase Thyristor Regulator The DMPR3-E from United Automation is a fully enclosed three-phase thyristor assembly designed for dependable control of resistive and inductive loads. Supporting up to 36kW at 415V, it offers user-selectable control modes—phase-angle, burst firing, or a hybrid combination—making it highly adaptable to varied industrial environments. With frequency tracking from 30–80Hz, integrated high-speed semiconductor fuses, and an internal heatsink, the DMPR3-E is particularly well-suited to installations with unstable or fluctuating power supplies. Accessible internal terminals and multiple cable entry points ensure straightforward installation and maintenance. Key Features Dual/Hybrid control modes: phase-angle, burst fire, or combined Frequency tracking 30–80Hz for unstable supply environments Adjustable ramp control 0–30 seconds for smooth power-up Integrated high-speed semiconductor fuses for enhanced protection Designed for inductive and resistive load control Accessible internal power and signal terminals Multiple front cable entry knock-outs for easy installation Internal heatsink for reliable thermal performance Technical Specifications Power ratings: 36kW (50A) Based on 415V RMS nominal supply Input voltage: 415V RMS ±10% Frequency range: 30–80Hz Control input options: 0–5V DC 0–10V DC 4–20mA Manual 5kΩ potentiometer Load type selectable (SW4): Resistive or Inductive Adjustable ramp from power-up: 0–30 seconds Control limit / over-current trip: 0–100mV DC or 0–25V DC Over-current warning: LED2 / LED3 pulse alternately Cable Terminations (internal) Phase power: M6 nut & washer stud terminal Earth: M6 nut & clamp washer stud terminal Cable Entry 6 × 20mm cable knock-outs 2 × 12mm holes (front side only) Cable glands not supplied Terminal Torque 4.5 to 5.5 Nm (power and earth terminals) Fusing (high-speed semiconductor type) 36kW model: 63ET fuse 54kW model: 100ET fuse Environmental Maximum working temperature: 65°C Dimensions & Weight Dimensions: 232mm (D) × 340mm (W) × 124mm (H) Fixing centres: 322mm (W) × 200mm (D), 4 × 6mm holes Weight: 5.2kg Applications Ideal for three-phase industrial power control in:   Heating systems: furnaces, ovens, dryers Ventilation equipment: air curtains, hot plates Inductive loads such as transformers Industrial environments with unstable supply frequency