Control unit MS-L-2x4 kW-DOL 2539745

Product features

• Reliable operation and protection

The MS-L-2x4 kW-DOL control unit is a key component of the installation, ensuring efficient and safe operation of two submersible pumps. Designed to control pumps based on liquid level, it is used in water supply systems and in draining sewage sumps. The device is characterized by a solid construction and a wide range of functions that minimize the risk of failure and ensure long-term reliability.

Functionality and versatility of application

The MS-L-2x4 kW-DOL unit offers comprehensive pump control, including overload protection and thermal motor control. The built-in function of periodic pump starting (every 2 seconds) prevents it from blocking, and alternating pump operation after each start evenly distributes the load. Additionally, the device has a high-level alarm with forced pump activation, which increases the safety of the installation. The ability to set a delay of up to 120 seconds allows for precise adjustment of the system's operation to specific conditions.

The device's construction allows for easy integration with various types of liquid level sensors through two digital inputs for float switches and one input for high-level signaling. Failure signaling is done via a potential-free contact, which facilitates connection to external alarm systems. The housing with IP54 protection class provides resistance to moisture and dust, allowing the device to be mounted in harsh environmental conditions.

Construction and technical parameters

The device is equipped with a locking main switch, a control panel with buttons and LEDs indicating the current operating status and any faults. Parameterization is done using DIP switches and a potentiometer, allowing easy adaptation of the device to individual installation needs. A built-in buzzer (powered by a 9V battery) informs about failures regardless of the mains power supply. The device is adapted to work in networks with a voltage of 230…400 V and a frequency of 50/60 Hz. Structural elements made of polycarbonate (PC) ensure durability and resistance to mechanical damage.