The ST37 Thyristor Trigger Module adopts a split-structure design, with the main control unit and triggering unit being independent and separated from each other. It is suitable for high-power control applications involving one master unit driving multiple triggering pulse boards. The triggering pulse boards are independently powered by DC24V. This main control board serves as the functional prototype of the ST33, and its specific functions are the same as those of the ST33. It only requires pairing with different triggering pulse boards.

This model is supplied only for bulk purchases by customers. For small quantities, please choose the ST33.

This control board can be used for various applications such as thyristor rectifiers, motor soft starters, charging and discharging systems, and is suitable for three-phase, single-phase, high-power, or high-voltage applications, offering strong flexibility. It can be customized according to customer requirements.

Various triggering pulse boards are available:

1140V three-phase six-pulse board

380V/660V three-phase six-pulse board

220V/380V single-phase four-pulse board

220V/380V single-phase two-pulse board

Technical Specifications:

◆ Power Supply: 380Vac ±15%, 50/60Hz

◆ Voltage Adjustment Range: 0 to full-scale voltage

◆ Current Adjustment Range: 0 to full-scale current

◆ Display Method: LCD screen with Chinese menu or touchscreen display

◆ Phase Shift Range: 0–178°

◆ Adjustment Output Resolution: 1/4000

◆ Stability Accuracy: Better than ±1%

◆ PID Dynamic Response Time: ≤50mS

◆ Overshoot: ≤10%

◆ Input Signals: DC0–5V, DC0–10V, 0–10mA, 4–20mA, 10K potentiometer adjustment

◆ Three-Phase Trigger Imbalance: ≤0.3°

◆ Suitable Loads: Resistive, inductive, capacitive, transformer primary side, and other loads

◆ Alarm Relay Contact Rating: 250Vac/10A

◆ Dielectric Strength: 3500 VRMS

◆ Dimensions: 175 × 160 × 50mm

◆ Cutout Dimensions: 160 × 145mm

◆ Weight: 0.8kg

Operating Environmental Conditions:

Ambient Temperature: -20℃ to 60℃

Relative Humidity: ≤90% RH (no condensation)

Indoor Installation: Free from flammable, explosive, corrosive gases, and conductive dust; vibration less than 0.5G

Altitude: Below 3000 meters. Above 3000 meters, derating should be applied appropriately.

Product Compliance Standards:

IEC 60947-4-2: Low-voltage switchgear and controlgear – Part 4-2: Contactors and motor-starters – AC semiconductor motor controllers and starters.

GB 14048.6-1998: Low-voltage switchgear and controlgear – Part 4-2: Contactors and motor-starters – AC semiconductor motor controllers and starters.

GB 3797-89: Electrical control equipment – Part 2: Electrical control equipment with electronic components.

IEC 61000-4: Electromagnetic compatibility (EMC) – Testing and measurement techniques.

IEC 65: Safety requirements for mains-powered electronic and related equipment for household and similar general use.