KULUN / SCR Power Controller

SMART Single-phase SCR Power Controller (Compact)

Name: SMART Single-phase SCR Power Controller (Compact)
Brand: KULUN

KULUN SMART: compact single-phase SCR power controller for resistance heating, drying, packaging and pipeline tracing. AC 10-150 A, Modbus.

Output Voltage Range0–100% of mains input voltage

Output Current RangeAC 10–150 A

产品特征

Three output modes: phase-shift, zero-crossing fixed-cycle and zero-crossing variable-cycle
Three closed-loop modes: constant voltage, constant current and constant power
Average-value current and voltage measurement as standard
Single-row LED digital display
Optional Modbus communication

Input	Mains supply	Single-phase AC 110–440 V, 45–65 Hz
Input	Control supply	DC 24 V
Output	Output voltage	0–100.0% of mains input voltage
Output	Output current	AC 10–150 A
Performance	Control stability	Better than 0.2%
Performance	Control accuracy	Better than 1%
Key features	Closed-loop mode	Open loop, constant current, constant voltage or constant power, selectable
	Firing mode	Phase-shift, zero-crossing fixed-cycle, zero-crossing variable-cycle
	Setpoint signal	Analog, keypad digital or communication setpoint, selectable
	Inputs	2 analog inputs, 2 digital inputs
	Outputs	1 relay output, NO contact, AC 240 V/3 A, DC 24 V/5 A
	Communication	Modbus RTU
	Power sharing	Not supported
	Temperature PID loop	Not supported
Protection	Mains fault	Protection on mains frequency out of range, undervoltage or input phase loss
	Overheating	Protection when thyristor temperature > 85 °C
	Overcurrent	Protection when output current reaches the set multiple
	Load break	Protection when load current falls below the threshold setting

For small and medium single-phase resistance heating, drying equipment, packaging machines and simple temperature control units.

For space-tight, cost-sensitive integration covering basic power control needs.

For local heat preservation, pipeline tracing, small furnace bodies and auxiliary heating branches.

What power range does SMART cover?

Small and medium single-phase heating loops; confirm rated current by model, nameplate and load.

Why a DC 24 V control supply?

The series uses a low-voltage DC control supply; confirm on-site control supply capacity and polarity during selection.

Can it be used for SiC heating?

Check SiC cold/hot resistance, current variation and process requirements for a match.

Is it suitable for complex multi-zone control?

It fits basic single-loop power control; for multi-zone, complex interlocks or advanced communication, evaluate higher configurations.

Installation notes?

Reserve cooling space, avoid dust, corrosive gas and condensation, and size cables and protection devices to the current rating.

请提供应用行业、设备工况、电压电流、功率范围和现场环境，工程师将协助确认方案。