Three-Phase (2-leg) SCR Power Controllers Datasheets

SCR Power Controllers -- SCR19 and SCR39 Series
from OMEGA Engineering, Inc.

The SCR19 Series Power Controllers are designed to proportion electric power to resistive loads only, such as ovens, furnaces, heat sealers, etc. (NOTE: They are not designed to drive transformers or any inductive load.) The controllers consist of power semi-conductors (SCRs), properly-sized heat... [See More]

  • Phase: Single Phase (optional feature); Three-Phase (2-leg) (optional feature); Three Phase (3-leg) (optional feature)
  • Current Ratings: 40, 60, & 80 Amps
  • SCR Control: Phase Angle (optional feature); Zero Crossing (optional feature)
  • Command Signal: Analog Current (e.g. 4-20 mA)
Silicon Controlled Recifier Power Controllers C Series
from Tempco Electric Heater Corporation

The “C ” Series SCR Power Controls are two-leg zero cross SCR power controllers that linearly control, proportional to the command signal, the power applied to a 3-phase electrical load. The controller consists of a master and slave assembly. Each assembly consists of a heat sink and an... [See More]

  • Phase: Three-Phase (2-leg)
  • Operating Voltage: 208, 240, 277, 480, 575 VAC
  • SCR Control: Zero Crossing
  • Maximum Current: 15 to 70
R820 SCR Power Controllers
from Viconics Technologies Inc.

Viconics ’ R820 SCR power controller has been designed for safe and reliable control of electric heat loads. By offering a competitive price, the use of SCR ’s is no longer an expensive proposition as was the case just a few years ago. As a result, this broad line of products is used by... [See More]

  • Phase: Single Phase (optional feature); Three-Phase (2-leg) (optional feature)
  • Operating Voltage: 240 - 600 VAC
  • SCR Control: Zero Crossing
  • Current Ratings: 10 - 75 Amps
Power Controller -- DIN-A-MITE B
from Watlow®

Watlow solid state power controllers complement the rapid switching required by PID temperature controls and help deliver optimum system performance and service life. Available in 1-phase and 3-phase/2-leg and 3-leg configuration, Watlow power controllers meet most industrial heating applications. [See More]

  • Phase: Single Phase (optional feature); Three-Phase (2-leg) (optional feature); Three Phase (3-leg) (optional feature)
  • Operating Voltage: 20 to 660 V
  • SCR Control: Zero Crossing
  • Command Signal: Analog Voltage (e.g. 0-5V) (optional feature); Analog Current (e.g. 4-20 mA) (optional feature)