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SCR3L Three-Phase Intelligent SCR Voltage Regulator 60A–200A

SCR3L Series Three-Phase Intelligent SCR Voltage Regulator is an integrated SCR power control module designed for 380VAC three-phase resistive load applications. It combines SCR phase control, signal detection and regulation circuits in one compact module, providing smooth and stable voltage adjustment for industrial heating systems.
The SCR3L series supports multiple analog control signals, including 4–20mA, 0–10V, 1–5V and 10KΩ potentiometer control. With built-in power supply, external 12V s

SCR3L Three-Phase Intelligent SCR Voltage Regulator 60A–200A

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Main Features Technical Specifications Model Selection Guide Application Scenarios FAQ

  • Integrated three-phase SCR phase control module
  • Suitable for 380VAC three-phase resistive load control
  • Supports 4–20mA, 0–10V, 1–5V and 10KΩ potentiometer input
  • Built-in AC220V power supply, connect to neutral line
  • Optional external DC12V power supply support
  • Full isolation design for stable operation
  • Compact structure, easy installation inside control cabinets
  • Available in 60A, 100A and 200A ratings
  • Suitable for heating equipment, molding machines and automation systems
ItemSpecification
Product SeriesSCR3L Series
Product TypeThree-Phase Intelligent SCR Voltage Regulator
Rated Voltage3-Phase 380VAC, four-wire
Rated Current60A / 100A / 200A
Frequency50Hz / 60Hz
Output Voltage Asymmetry≤5%
Built-in Power SupplyAC220V, connect to N
Optional External PowerDC12V ≥1A
Control Signal4–20mA, 0–10VDC, 1–5V, 10KΩ / 2W potentiometer
Mounting Size92mm width, 147.6mm height
Mounting HoleØ5.3mm
Application LoadThree-phase resistive load


  • Blow molding machines
  • Injection molding equipment
  • Hot runner mold systems
  • Industrial ovens
  • Drying equipment
  • Heating furnaces
  • Packaging machinery
  • Three-phase heater control systems
  • Automation control cabinets

Q1: What is the difference between SCR3L and BSTY?
SCR3L is a compact three-phase intelligent SCR voltage regulator for 60A, 100A and 200A applications. BSTY is more suitable for higher current applications such as 150A–450A.

Q2: What control signals does SCR3L support?
It supports 4–20mA, 0–10VDC, 1–5V and 10KΩ potentiometer control.

Q3: What load type is SCR3L suitable for?
SCR3L is mainly suitable for three-phase resistive loads, such as heaters, ovens, heating plates and hot runner systems.

Q4: Does SCR3L need external power?
It has a built-in AC220V power supply that should be connected to neutral line. It can also support optional external DC12V power supply.

Q5: What current ratings are available?
Common ratings are 60A, 100A and 200A.


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Main Features
  • Integrated three-phase SCR phase control module
  • Suitable for 380VAC three-phase resistive load control
  • Supports 4–20mA, 0–10V, 1–5V and 10KΩ potentiometer input
  • Built-in AC220V power supply, connect to neutral line
  • Optional external DC12V power supply support
  • Full isolation design for stable operation
  • Compact structure, easy installation inside control cabinets
  • Available in 60A, 100A and 200A ratings
  • Suitable for heating equipment, molding machines and automation systems
Technical Specifications
ItemSpecification
Product SeriesSCR3L Series
Product TypeThree-Phase Intelligent SCR Voltage Regulator
Rated Voltage3-Phase 380VAC, four-wire
Rated Current60A / 100A / 200A
Frequency50Hz / 60Hz
Output Voltage Asymmetry≤5%
Built-in Power SupplyAC220V, connect to N
Optional External PowerDC12V ≥1A
Control Signal4–20mA, 0–10VDC, 1–5V, 10KΩ / 2W potentiometer
Mounting Size92mm width, 147.6mm height
Mounting HoleØ5.3mm
Application LoadThree-phase resistive load


Model Selection Guide

Application Scenarios
  • Blow molding machines
  • Injection molding equipment
  • Hot runner mold systems
  • Industrial ovens
  • Drying equipment
  • Heating furnaces
  • Packaging machinery
  • Three-phase heater control systems
  • Automation control cabinets

FAQ

Q1: What is the difference between SCR3L and BSTY?
SCR3L is a compact three-phase intelligent SCR voltage regulator for 60A, 100A and 200A applications. BSTY is more suitable for higher current applications such as 150A–450A.

Q2: What control signals does SCR3L support?
It supports 4–20mA, 0–10VDC, 1–5V and 10KΩ potentiometer control.

Q3: What load type is SCR3L suitable for?
SCR3L is mainly suitable for three-phase resistive loads, such as heaters, ovens, heating plates and hot runner systems.

Q4: Does SCR3L need external power?
It has a built-in AC220V power supply that should be connected to neutral line. It can also support optional external DC12V power supply.

Q5: What current ratings are available?
Common ratings are 60A, 100A and 200A.


SCR3L Three-Phase Intelligent SCR Voltage Regulator 60A–200A
SCR3L Series Three-Phase Intelligent SCR Voltage Regulator is an integrated SCR power control module designed for 380VAC three-phase resistive load applications. It combines SCR phase control, signal detection and regulation circuits in one compact module, providing smooth and stable voltage adjustment for industrial heating systems.
The SCR3L series supports multiple analog control signals, including 4–20mA, 0–10V, 1–5V and 10KΩ potentiometer control. With built-in power supply, external 12V s
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