Tel : +86-592-6382791
Email : sales@pidmaxwell.com
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.
Brand:
PIDMaxWellItem no.:
MS-1VD22/38-PPayment:
T.T, Credit Card, Paypal etc, to be negotiateProduct origin:
Made in ChinaColor:
blackMin order:
10 PCSLead Time:
14 days after payment confirmedKey Features
|
Multi-Input Compatibility |
Simultaneously supports 0-5Vdc, 0-10Vdc, 4-20mA, and 2-10K potentiometer inputs, sharing a common negative terminal for ultimate flexibility. |
|
High-Accuracy Phase Angle Control |
Utilizes phase angle firing mode to deliver smooth, stepless, and highly accurate power regulation across the full load range. |
|
Optical Isolation |
Full optical isolation between the control input and the high-voltage power output ensures superior safety and EMI immunity. |
|
Built-in Surge Protection |
Integrated buffer (RC snubber) circuit protects the SCR from voltage spikes and transient surges, extending service life. |
|
Integrated Soft Start |
Built-in soft start functionality prevents high inrush currents, extending the lifespan of both the regulator and the connected load. |
|
Visual Process Indication |
Intuitive LED indicators for power supply status and input/output signal strength; brightness varies proportionally with signal level. |
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Wide Current Range |
Available in 8 current ratings from 10A up to 200A, accommodating a vast array of industrial heating and power control applications. |
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Robust & Safe Construction |
Black fire-retardant housing with resin sealing, designed for secure panel mounting with reliable thermal management via external heatsink. |
Technical Specifications
| Parameter | Specification |
|
Product Category |
Single-Phase Isolated SCR Power Regulator |
|
Load Voltage Range |
0 ~ 220Vac or 0 ~ 380Vac (50/60Hz) |
|
Load Current Options |
10A / 25A / 40A / 60A / 80A / 100A / 120A / 200A |
|
Control Signal Inputs |
0-5Vdc, 0-10Vdc, 4-20mA, 2-10K Potentiometer (Supported simultaneously) |
|
Control Mode |
Phase Angle Firing (Phase Angle Control) |
|
Isolation Method |
Optical Isolation (Input / Output) |
|
Soft Start |
Built-in soft start circuit |
|
Surge Protection |
Built-in internal buffer / RC snubber circuit |
|
LED Indicators |
Power supply LED; Input/Output intensity LED (brightness ∝ signal level) |
|
Housing Material |
Black fire-retardant plastic with resin seal |
|
Mounting Method |
Panel mount (External heatsink required, sold separately) |
|
Load Compatibility |
Resistive loads (heaters, lamps, etc.); suitable for very small inductive loads |
|
Certification |
CE |
Panel Indicator & Terminal Reference
|
Terminal |
Label / Function |
Description |
|
1 (Top) |
Input/Output Indicator LED |
Brightness represents signal level; brighter = higher input/output value |
|
2 (Top) |
Power Supply Indicator LED |
Lights on when 220Vac or 380Vac power is fed to the unit |
|
3 (Bottom) |
+ Terminal (4-20mA) |
Positive terminal for 4-20mA current loop input |
|
4 (Bottom) |
+ Terminal (0-10Vdc) |
Positive terminal for 0-10Vdc analog voltage input |
|
5 (Bottom) |
– COM Terminal |
Shared negative terminal for 0-10V, 0-5V, and 4-20mA inputs |
|
6 (Bottom) |
+ Terminal (0-5Vdc) |
Positive terminal for 0-5Vdc analog voltage input |
|
7 (Bottom) |
+5Vdc Internal Source |
Internal +5Vdc power source for 2-10K potentiometer input |


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