text.skipToContent text.skipToNavigation

If you have previously used the Omega Website, you will need to Reset your Password on the new site.
Resetting your password is required one time only.

Configure Product
Saved Configuration
View Configuration
Terms and Conditions
Saved Addresses
Your card information was not accepted. Please contact the issuing bank for details.
Payment submission timed out. The server might be busy.
There was an error processing your request.
Please verify there are no missing or invalid fields.
Please enter a card number
Please select a card type
Please enter a value for this field
Please enter an expiry month
Please enter an expiry year
Please enter an issue number
Please enter a start month
Please enter a start year
The card number is not valid
The card type is not supported
The card verification code is not valid
The expiry month is not valid
The expiry year is not valid
The issue number is not valid
The start month is not valid
The start year is not valid
This field is required
Errors were found with the address you provided. Please verify your address.
Date should be in MM/DD/YYYY format
Please enter valid values
Please enter future date
Please enter the shipping date
Shipment date is updated

SCR Power Controllers for Electrical Resistance Heaters

Item# SCR19P-02-080-S120

SCR Power Controllers for Electrical Resistance Heaters SCR Power Controllers for Electrical Resistance Heaters
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 sinks, trigger circuitry, and fuses supplied on panels for surface mounting. The power controller accepts a 4 to 20 mA dc output from a temperature controller or can be supplied with manual option using a remote potentiometer.

The SCR19 Series controllers offers two methods of proportional control – Zero-voltage-switched and Phase-angled-fired. With the Zero-voltage-switching mode, the controller switches on complete cycles of the ac supply voltage. The trigger circuit is designed to turn on the SCRs as close as possible to the point where the AC sine wave crosses through zero. In effect, the line voltage is turned on and off and applied to the heaters in whole cycles. With an input of 4 to 20 mA, the output will be off below 4 mA and full on at 20 mA. Proportioning action is obtained by varying the number of cycles on to the number of cycles off. The output will vary from one cycle on and nine cycles off at low input, to all cycles on at maximum input. This output is integrated by the heaters which produce a smoothly proportioning heat output that varies directly with the input signal. With the Phase-angle-fired mode, the power to the load is controlled by governing the point of turn on (firing) of each half cycle of the full AC sine wave.
SCR19P-02-080-S120
  • Zero Crossing or Phase Angle Fired
  • Single or Three Phase Load Switching
  • Extends Heater Life Reduces Thermal Shock
  • No Maintenance All Solid State Components
  • Close Control of Low Mass Heaters
  • Phase Angle with Soft Start for High Inrush Heaters
  • No Relay Noise Contact Arc Noise Eliminated
  • Semiconductor I2T Fusing
  • Optically Isolated Control Signal Input
Current Rating
Supply Voltage
Features
Phase-Angle Firing Items
Quantity Price each
1-9 $500.00
10-24 $475.00
25-49 $465.00
50-99 $445.00
100-199 $435.00
200+ $425.00

In stock

Lead Time ( If not in Stock): 3 weeks

Product Specs

  • Load Regulation Resistive
  • Maximum Ambient Temperature 50 {C} (122 {F})
  • Maximum Input Current 40
  • Minimum Ambient Temperature 0 {C} (32 {F})
  • Supply Frequency 50 to 60 Hz

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 sinks, trigger circuitry, and fuses supplied on panels for surface mounting. The power controller accepts a 4 to 20 mA dc output from a temperature controller or can be supplied with manual option using a remote potentiometer.

The SCR19 Series controllers offers two methods of proportional control – Zero-voltage-switched and Phase-angled-fired. With the Zero-voltage-switching mode, the controller switches on complete cycles of the ac supply voltage. The trigger circuit is designed to turn on the SCRs as close as possible to the point where the AC sine wave crosses through zero. In effect, the line voltage is turned on and off and applied to the heaters in whole cycles. With an input of 4 to 20 mA, the output will be off below 4 mA and full on at 20 mA. Proportioning action is obtained by varying the number of cycles on to the number of cycles off. The output will vary from one cycle on and nine cycles off at low input, to all cycles on at maximum input. This output is integrated by the heaters which produce a smoothly proportioning heat output that varies directly with the input signal. With the Phase-angle-fired mode, the power to the load is controlled by governing the point of turn on (firing) of each half cycle of the full AC sine wave.

en-US
en
Save Configuration