36P1 Series
Three Phase SCR Power Control
The 36P1 Series of power controls is a three phase controller available in 120 through 575 Vac with current ratings from 20 to 600A. Using six SCRs in a three phase AC switch configuration, it provides smooth phase angle control for 0–100% output power with isolated 4-20mA signal input, manual potentiometer, and load voltage regulation.
| AC Supply Voltage | 120 – 575 Vac |
| Amp Ratings | 20 to 600A |
| Control Signal | 4-20 mA, 10-50 mA, 1-5 mA, 0-10 Vdc |
| Configuration | 6 SCRs — 3-phase AC switch |
| Features | Load Voltage Regulation |
Six SCR Design
Six SCRs in three-phase AC switch configuration for full phase angle control.
0–100% Output
Smooth proportional phase angle control across the full output range.
Isolated Signal Input
4-20mA isolated signal input plus manual potentiometer input standard.
Load Voltage Regulation
Integrated load voltage regulation for consistent output across load variations.
36P1 Series
Technical Specifications
AC Supply Voltage
120 / 208 / 380 / 415 / 480 / 575 VAC (±10%)
Line Frequency
50/60 Hz
Output Current Rating
25 to 600 Amps (model dependent). Higher currents available — consult factory.
Automatic Command Input
4–20 mA (510 Ω) | 10–50 mA (200 Ω) | 1–5 mA (2 kΩ) | 0–10 VDC (100 kΩ min.)
Manual Command Input
10 kΩ, 2W potentiometer
Output Voltage
0 to 98% of input voltage
Output Stage
6 SCR configuration (three phase AC switch)
Load Types
Resistive, Inductive, Transformer, Lamp
Soft Start Adjustment
5 cycles to 30 seconds. Accommodates most milliamp signals.
Current Limit (optional)
10 – 125% of controller rated current
Current Trip (optional)
75 – 200% of controller rated current
Regulation
Maintains output within 2% with a ±10% line variation, up to 90% of line voltage.
Ambient Temperature
0 to 40°C at rated current. From 50°C to a maximum of 60°C, output rating decreases by 10% for each 5°C increase.
Protective Features
I²t Fusing
Transient Voltage Suppressor (MOV)
dv/dt Snubber Networks
Standard Features
Isolated 4–20 mA signal input, manual potentiometer input, Load Voltage Regulation, integral offset and gain adjustments.