Solid State Relays & SCR Power Modules
BSTY Three-Phase SCR Voltage Regulator 380V, 150A–450A
BSTY Series Three-Phase SCR Voltage Regulator is designed for 380VAC industrial heating and power control applications. It supports phase-angle control, analog signal input, soft start, over-temperature protection and fully isolated control circuits. The series is available from 150A to 450A and is widely used in ovens, drying equipment, blow molding machines, thermoforming equipment, hot runner systems and other three-phase resistive load control applications.
- Three-phase SCR voltage regulation for industrial heating control
- Phase-angle control with smooth output adjustment
- Supports analog signal control: 1–5V, 2–10V, 4–20mA
- Manual control with 10KΩ potentiometer
- Built-in soft start function, adjustable from 0–15 seconds
- Over-temperature protection with 85°C cut-off
- Fully isolated control and power circuits
- No phase sequence requirement, easier wiring
- Available current ratings from 150A to 450A
- Suitable for ovens, heaters, hot runner systems and molding machines
- Lead time
- 3–5 working days
- Warranty
- 12 months
- OEM
- Supported
- Shipping
- Worldwide export
Technical specifications
| Product Series | BSTY Series |
|---|---|
| Product Type | Three-Phase SCR AC Voltage Regulator |
| Working Voltage | 3-Phase 380VAC ±5% |
| Rated Current | 150A / 200A / 300A / 350A / 400A / 450A |
| Control Method | Phase-Angle Regulation, 0–180° |
| Manual Control | 10KΩ / 2W Potentiometer |
| Analog Input | 1–5V, 2–10V, 4–20mA |
| Soft Start Time | 2s default, adjustable 0–15s |
| Protection | Over-temperature protection, 85°C cut-off |
| Insulation | Fully isolated control and power circuits |
| Phase Sequence | No restriction |
| Mounting | Bolt Installation |
| Application Load | Three-phase resistive load |
Related guides
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Electrical data, control signal options, four-wire 380VAC connection rules, current sizing, mounting dimensions and commissioning steps for the SCR3L three-phase intelligent SCR voltage regulator.
Read guide Technical Guides · 2025-08-28BSTY Three-Phase AC Power Regulator: Reliable Power Control for Industrial Applications
The BSTY Three-Phase AC Power Regulator is a reliable solution for industrial voltage control, supporting multiple input signals (0–5V, 0–10V, 4–20mA, potentiometer) and optional RS485 communication. With built-in soft-start, over-temperature protection, and complete isolation between control and power circuits, it ensures safe and stable operation. Designed for fans, pumps, torque motors, and heating equipment, the BSTY regulator combines flexible control, simple wiring, and robust protection for demanding industrial environments.
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