STOM2 | Microprocessor Dual Mode SCR Trigger Module | 10V–440V

Description

STOM2 Microprocessor-Based Dual Mode Thyristor Trigger Module

The STOM2 Microprocessor-Based Dual Mode Trigger Module is a compact, intelligent thyristor trigger module designed to provide reliable SCR firing for industrial power control applications. Supporting line voltages from 10V to 440V AC, the STOM2 offers both phase-angle and burst-fire operating modes, making it suitable for applications requiring smooth power regulation, soft-start functionality, and efficient switching of resistive or inductive loads.

Ideal for industrial heating systems and process control equipment, the STOM2 accepts 0–5V DC and 4–20mA control signals from PLCs, temperature controllers, and automation systems. Its microprocessor-based design incorporates adjustable soft-start, high electrical isolation, and load status indication to ensure dependable operation and long service life.

Key Features

The STOM2 Dual Mode Trigger Module combines flexible SCR firing control with intelligent microprocessor technology for reliable industrial power management.

• Supports line voltages from 10V to 440V AC
• Microprocessor-based thyristor trigger module
• Dual operating modes: Phase Angle and Burst Fire
• Adjustable soft-start (1–30 seconds)
• Accepts 0–5V DC and 4–20mA control signals
• High electrical isolation (4kV AC)
• Load status indicator for real-time operation
• Compact and rugged industrial design
• Low power consumption for improved energy efficiency
• Suitable for resistive and inductive loads
• Reliable SCR trigger output up to 1A

Technical Specifications

• Controller Type: Microprocessor-based SCR trigger module
• Operating Modes: Phase Angle and Burst Fire
• Line Voltage Range: 10V to 440V AC
• Minimum Line Voltage: 5V AC
• Maximum Line Voltage: 440V AC
• Supply Voltage: 10–18V AC @ 75mA
• Operating Frequency: 50–60Hz ±5%
• Control Inputs: 0–5V DC and 4–20mA
• Soft-Start Adjustment: 1–30 seconds
• Trigger Output Rating: 1A
• Maximum Electrical Isolation: 4kV AC
• Power Consumption: 1.2W
• Auxiliary Output: Gate terminals
• Gate Terminal Size: 6.3mm × 0.8mm
• Mono-Link Fuse: F100mA (HRC)
• Operating Temperature: 0°C to +65°C
• Storage Temperature: 0°C to +85°C

Operation

The STOM2 generates accurate firing pulses for SCR power controllers operating in either phase-angle or burst-fire mode. During start-up, phase-angle control provides gradual power delivery through the adjustable soft-start function, reducing electrical and thermal stress on connected equipment. Once the preset control level is reached, the module can automatically transition to burst-fire mode for highly efficient steady-state operation.

Compatible with both voltage and current control signals, the STOM2 integrates easily with temperature controllers, PLCs, and industrial automation systems. High electrical isolation and load status indication further enhance system safety and operational reliability.

Applications

The STOM2 Dual Mode Trigger Module is ideal for:

• Industrial ovens
• Moulding equipment
• Dryers
• Electric heating systems
• Industrial heater controllers
• Temperature control systems
• Process heating equipment
• Low-resistance heating elements
• Industrial automation systems
• SCR power controllers
• Resistive load control
• Inductive load control

Benefits

• Supports both phase-angle and burst-fire control
• Adjustable soft-start protects heating elements
• Suitable for low cold-resistance heating loads
• Compatible with voltage and current control signals
• High 4kV electrical isolation improves safety
• Low power consumption reduces operating costs
• Compact design simplifies installation
• Reliable microprocessor-based operation
• Suitable for both resistive and inductive loads
• Easy integration with industrial control systems

Safety & Installation

Installation should only be carried out by suitably qualified personnel.

Always isolate all electrical supplies before installation or maintenance. Ensure the supply voltage and control signal are correctly configured before commissioning. Install the module within a suitable electrical enclosure and provide adequate ventilation where required.

Use appropriate external circuit protection in accordance with local electrical regulations and operate the module only within the specified temperature limits.