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Smart 3 Phase Thyristor Power Controller

The MW30L series is a compact, high-performance three-phase SCR power regulator designed for precise control of electrical heating systems. With a current range from 25A to 350A, it is highly suitable for both resistive and inductive loads in various industrial applications.

1.Current rating options from 25A up to 350A to meet diverse industrial heating requirements.
2.Comprehensive universal analog input support including 0-5V, 0-10V, 0-20mA, and 4-20mA, along with 2 digital inputs and 1 digital output.
3.Flexible trigger modes featuring both phase angle firing and zero-cross firing control.
4.Advanced built-in protection functions including phase loss, overcurrent, overheating, overload, and load disconnection.
5.Standard RS-485 communication interface utilizing the Modbus-RTU protocol for seamless system integration.
6.Multiple control modes available: Constant Voltage (V), Constant Current (I), Constant Power (P), and Open-loop control.
7.Optional expansion modules available for temperature function and external display panel.

Brand:
PIDMaxWell
Item no.:
MW30L
Payment:
T.T, Credit Card, Paypal etc, to be negotiate
Product origin:
Made In China
Color:
Grey
Goods stock:
10
Min order:
1
Lead Time:
One week after payment

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Specifications

Key Features

High-Performance Processing Built with a high-performance, fast-switching processor that ensures rapid response and precise control of the power output. The compact size and lightweight design make it highly efficient and easy to install in various control cabinets.

Versatile Control Modes Supports multiple advanced control methods including constant output voltage, constant output current, constant output power, and open-loop control. This versatility allows the regulator to adapt to different heating elements and process requirements seamlessly.

Comprehensive Protection Systems Equipped with robust built-in safeguards to protect both the regulator and the connected equipment. Standard protection features include phase loss detection, overcurrent protection (3A AC250V), thyristor overheating protection (3A DC30V), and load disconnection alarms.

Universal Input Compatibility Features flexible analog input interfaces that support 0-20mA, 4-20mA, 0-5V, and 0-10V signals. It also supports over-range input handling, making it highly compatible with most industrial PLCs and temperature controllers.

Flexible Firing Options Offers both phase angle firing and zero-cross firing modes. This flexibility allows users to select the most appropriate firing method based on their specific load characteristics, whether it is standard resistive heating or more complex inductive loads.

Communication and Integration Comes standard with an RS-485 communication interface using the Modbus-RTU protocol. It supports 3, 4, 6, and 16-bit function codes with multiple baud rates (2400 to 38400) and data formats, making centralized control and monitoring straightforward.

Technical Specifications

Feature	Specification
Product Series	MW30L Series
Load Phase	Three-phase
Main Circuit Voltage	3AC 260V ~ 440V
Control Power Supply	AC 160V ~ 240V
Power Supply Frequency	45Hz ~ 65Hz
Rated Current Options	25A, 50A, 75A, 100A, 150A, 200A, 250A, 300A, 350A
Control Modes	Constant Voltage (V) / Constant Current (I) / Constant Power (P) / Open-loop
Trigger Modes	Phase angle firing, Zero-cross firing
Accuracy	≤ 1%
Static Stability	≤ 0.5%
Analog Inputs	0-5V, 0-10V, 0-20mA, 4-20mA
Digital Inputs / Outputs	2 Digital Inputs / 1 Digital Output (Relay: 3A/AC250V)
Communication	Standard RS-485 (Modbus-RTU)
Protection Functions	Phase loss, Overcurrent, Overheating, Overload, Load disconnection
Cooling Method	Forced air cooling (Fan)
Operating Environment	-10°C to +50°C (Derating required above 45°C or >1000m altitude per GB/T 3859.2-93)
Load Types	Resistive, Inductive, Programmable load characteristics customization

Size and Weight for Different Ratings

Specification	25A / 50A	75A / 100A	150A	200A	250A / 300A	350A
Dimensions (L x W x H mm)	186 x 80 x 125	251 x 136 x 179	335 x 164 x 209	335 x 164 x 209	360 x 194 x 228	360 x 194 x 228
Weight (KG)	1.3 kg	3.3 kg	7.9 kg	10.4 kg	12.6 kg	18.4 kg

Potential Applications
The MW30L series is ideal for a wide range of industrial applications requiring precise power control. It is commonly used in industrial drying ovens for stable heat control during processing. The regulator is also well-suited for heat treatment furnaces, providing accurate temperature profiling for annealing and tempering processes. Furthermore, it delivers reliable power regulation for glass and ceramic manufacturing kilns, as well as providing precise power delivery for various induction melting and heating applications.

1. Ordering Information

MW30L - [Rated Current] - [Options]

• Rated Current Options: 025, 050, 075, 100, 150, 200, 250, 300, 350 (Amps)

• Options:

– T = Temperature function

– ED = External display expansion

2. Ordering Example

MW30L-100-ED — MW30L series, 100 amps, with external display expansion.

3. Selection Guidance

To ensure the correct SCR power regulator is selected for your application, please consider the following details: Identify your load type to determine if it is a resistive load (like standard heaters or IR lamps) or an inductive load (like a transformer). Calculate the total power of your load and determine your electrical circuit configuration (Delta, Star, or Star with neutral wire) to find the correct phase current. Select an SCR rating that comfortably exceeds your calculated phase current to ensure reliable and safe operation.

Documents and Dowloads

[PDF] MW30E Catalog and user manual

Q: What types of loads can the MW30L series handle? A: The MW30L series is designed to handle both resistive and inductive loads. It even supports programmable load characteristics customization, making it highly adaptable to various industrial heating requirements.

Q: Does the MW30L support different control methods? A: Yes, the MW30L offers versatile control modes including constant voltage, constant current, constant power, and open-loop control. This allows it to automatically compensate for fluctuations and maintain stable output.

Q: What communication protocol does the MW30L use? A: The MW30L comes equipped with a standard RS-485 communication interface that utilizes the widely used Modbus-RTU protocol. It supports various baud rates and data formats for easy integration into centralized control systems.

Q: What protection features are built into the MW30L? A: The regulator includes comprehensive protection functions such as phase loss detection, overcurrent protection, thyristor overheating protection, overload protection, and load disconnection alarms to ensure safe operation.

Q: Can I use an external display with the MW30L? A: Yes, the MW30L supports optional expansion modules, including an external display (ED option), which allows for convenient monitoring and parameter adjustment without needing to access the main unit directly.

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