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SCR Power Controllers

SCR19-H and SCR39-H

SCR Power Controllers | SCR19-H and SCR39-H

SCR Power Controllers

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  • Zero Crossing or Phase-Angle Fired
  • Diagnostic LED Indicators
  • Single- or 3-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 4 to 20 mA Control Signal Input
  • Fan Cooled
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Descripción

The SCR19-H and SCR39-H Series power controllers are designed to proportion electric power to resistive loads only, such as ovens, furnaces, heat sealers, etc. The controllers consist of power semi-conductors (SCRs), properly sized heat sinks, trigger circuitry, and fuses supplied on panels for surface mounting. (Note: They are not designed to drive transformers or any inductive load.) The power controller accepts a 4 to 20 mAdc output from a temperature controller.

Zero Voltage Switched Models
The SCR19Z-H and SCR39Z-H SCR power controllers are zero crossover fired, high-power solid state switched devices. Zero crossover firing eliminates the RFI generation associated with mechanical relays. With zero crossover firing, the output appears as bursts of full sine waves of line voltage which provides excellent regulation to the load.

Phase Angle Fired Models
The SCR19P-H and SCR39P-H SCR phase-angle fired power controllers turn on each SCR for a controlled portion of a half-cycle of the line voltage. The effective line voltage is determined by the portion of the line voltage delivered, which is proportional to the input control signal. Additionally, the voltage is regulated as the line voltage changes.

Dimensions mm (inches): Note: When fuses are added to unit, add 83 mm (3.3") to height.
Model No. Height Width Depth
SCR19Z-H 222.25 (8.750) 135.12 (5.320) 370.84 (14.6)
SCR19P-H 222.25 (8.750) 135.12 (5.320) 370.84 (14.60)
SCR39Z-H 222.25 (8.750) 287.02 (11.30) 370.84 (14.60)
SCR39P-H 222.25 (8.750) 394.46 (15.530) 370.84 (14.6)

Specifications
Supply Voltage: 120 to 600 Vac
Frequency: 50 to 60 Hz
Current Rating: 125 to 250 A Input Control Signal Isolation: 2500 Vac
Transient Voltage Protection: Inherent built-in immunity
Ambient Temperature: 0 to 50°C (32 to 122°F)
Load: Resistive
SCR39Z-H: 1-phase, 2-leg control for 3-wire delta, 3-phase ungrounded wye
SCR19Z-H: 1-phase, 1-leg control
SCR39P-H: 3-phase, 3-leg half control for 3-wire delta or 3-phase ungrounded wye
SCR19P-H: 1-phase, 1-leg control
Diagnostic Indicators: Shorted or open SCR
Cooling: Fan cooled, requires 120 Vac control voltage


Note: To Order Phase-Firing Models, see Part Number Builder section below.
Hacer Pedido(Especifique el Número de Modelo)
Número de parte/Desc.
Cant.
Descripción
Single-Phase Models
Quick Ship
SCR19Z-H-48-125
MXN32,445.00
Disponible en: 4 Semanas
 
120 to 480V, Single-Phase, Zero Voltage Switching, 125A Model
Quick Ship
SCR19Z-H-48-200
MXN35,100.00
Disponible en: 4 Semanas
 
120 to 480V, Single-Phase, Zero Voltage Switching, 200A Model
Quick Ship
SCR19Z-H-48-250
MXN36,780.00
Disponible en: 4 Semanas
 
120 to 480V, Single-Phase, Zero Voltage Switching, 250A Model
3-Phase Models
Quick Ship
SCR39Z-H-48-125
MXN50,065.00
Disponible en: 4 Semanas
 
120 to 480V, 3-Phase, Zero Voltage Switching, 125A Model
Quick Ship
SCR39Z-H-48-200
MXN53,565.00
Disponible en: 4 Semanas
 
120 to 480V, 3-Phase, Zero Voltage Switching, 200A Model
Quick Ship
SCR39Z-H-48-250
MXN57,340.00
Disponible en: Disponible
 
120 to 480V, 3-Phase, Zero Voltage Switching, 250A Model
Todas las cantidades que se muestran en MXN
Nota: All phase-angle models come complete with 1 fuse per SCR line controlled, and operator’s manual. All zero-voltage models come complete with 1 fuse per SCR line controlled, and operator’s manual.
 

Generador de Número de Parte

Construya su Número de Parte Abajo
Opciónes de Descripción:


(1) Phase seleccionar de:
1 para Single Phase
3 para 3 Phase

(2) Method seleccionar de:
P para Phase-Angle Firing Models
Z para Zero-Voltage Switching Models

(3) Line Voltage seleccionar de:
12 para 120 Vac (Single Phase Only)
20 para 208 Vac (Single Phase Only)
24 para 240 Vac (Single Phase Only)
48 para 480 Vac

(4) Amp Ratings seleccionar de:
125 para 125 Amps
200 para 200 Amps
250 para 250 Amps

(5) Soft Start or Voltage Limit seleccionar de:
Nada (dejar el campo en blanco) para Zero-Voltage Switching Models
-S9 para Soft start 9 seconds
-S15 para Soft start 15 seconds
-S30 para Soft start 30 seconds
-S60 para Soft start 60 seconds
-S120 para Soft start 120 seconds
-V para Voltage limit
-X para No soft start or voltage limit
Nota: Todas las combinaciones pueden no ser válidas, revise la hoja de especificaciones para números de parte válidos