GMAX TDD-220T40A TDD-220T75A TDD-220T120A TDD-220T150A TDD-220T200A(TDD-220T)

● Single phase high accuracy SCR● Support all kinds of analog signal● 220Vac or 380Vac load● From 40 amps up to 200 amps● Phase angle firing control

● Single phase high accuracy SCR● 0-10V/4-20mA/0-5V/Potentiometer input● 220Vac or 380Vac load● From 40 amps up to 200 amps● Phase angle firing control

  The Maxwell MS-1VD2238 Series is a highly cost-effective, high-accuracy single-phase isolated SCR power regulator designed for precise phase angle control. Featuring a versatile multi-input design, this advanced thyristor module simultaneously supports 0-5Vdc, 0-10Vdc, 4-20mA, and potentiometer control signals without requiring hardware modifications. Engineered with optical isolation between the input and output circuits, it ensures maximum operational safety and signal integrity. Available in a wide current range from 10A to 200A for both 220Vac and 380Vac loads, the MS-1VD2238 series incorporates a built-in soft start circuit and an internal buffer (snubber) to protect against voltage surges. Housed in a durable, fire-retardant enclosure with resin sealing, this panel-mounted regulator is the ideal solution for controlling resistive heating elements in demanding industrial environments.

● Potentiometer input SCR● 500K, 1000K potentiometer● 24~480Vac load● From 10 amps up to 120 amps● 500K for 220Vac● 1000K for 480Vac

● Analog input single phase SCR● 0-10Vdc, 4-20mA input● 220VAC, 380Vac load● From 10 amps up to 120 amps● Phase firing control mode

The Maxwell SCR20CA Series is a highly integrated, single-phase AC power controller designed for advanced feedback control and precise voltage regulation. Built around a high-power thyristor (SCR) chip, this compact unit incorporates a digital phase-shift control circuit alongside highly accurate output voltage and current measurement systems. A standout feature of the SCR20CA is its multi-functionality: users can seamlessly switch between constant voltage, constant current, and constant power control modes directly via the digital panel or communication interface. Equipped with true RMS sampling and a fully isolated measurement system, it ensures safe and reliable operation. With built-in RS-485 Modbus RTU communication, pluggable control terminals, and comprehensive protection mechanisms, the SCR20CA is an ideal solution for modern, automated industrial heating and power control applications.

The Maxwell SCR-480H Series is a compact and highly reliable single-phase AC voltage regulator module designed for precise phase angle control. Utilizing a 0-10VDC analog input signal, this module allows for smooth, stepless adjustment of AC load voltage up to 480VAC. Engineered with advanced zero-crossing detection and optocoupler isolation, it ensures safe and interference-free operation between the low-voltage control circuit and the high-voltage power circuit. Available in a wide range of current ratings from 25A to 120A, the SCR-480H features a robust, space-saving design with pluggable terminal blocks for effortless wiring and maintenance. When paired with Maxwell's dedicated heatsinks, it delivers exceptional thermal performance, making it an ideal open-loop power control solution for both resistive and inductive industrial loads.

The PT100-12 is a PT100 Platinum Resistance Thermometer featuring an adjustable compression fitting combined with a robust Form B aluminium connection box (connection head). This combination delivers two key advantages in a single assembly: the compression fitting allows the probe insertion depth to be set and locked at any position within the fitting stroke, eliminating the need for custom-length probes during installation; and the sealed connection box provides a weather-resistant, vibration-tolerant housing for field wiring that is well suited to demanding industrial environments. The sensor complies with EN 60751 and covers a temperature range of −70 °C to +300 °C, making it suitable for a wide spectrum of process and industrial applications. The stainless steel probe is available in three diameters — 4 mm, 5 mm, and 6 mm — and three standard lengths of 50 mm, 100 mm, and 150 mm, all of which can be customised to order. Adjustable process fittings are available in ½ NPT, ¼ NPT, and ¼ BSP thread forms, enabling direct installation into standard process pipework and vessels without adapters. The connection box accepts standard conduit entries, and the sensor ships without lead wire, with all field connections made inside the terminal block housed within the connection box.