Motor protection relay Selectric SRP-MD-E6A5AADB-B

Selectric SRP-MD is an intelligent microprocessor-based device for relay protection, control, and monitoring of low-voltage electric motors.

The device is designed to build modern electric motor control systems and provides full monitoring of the equipment status: from measuring electrical parameters and protecting against emergency conditions to registering events and transmitting data to the process control system.

It is used in motor control cabinets (MCC), switchgear, and industrial process installations.

The device allows you to implement various motor control schemes:

• direct start;
• reverse start;
• two‑speed start;
• start with reduced voltage;
• control via a contactor;
• local control;
• remote control;
• automatic restart after power is restored.

A wide range of protections is available, covering all possible emergency events.

The device is equipped with a programmable logic controller.
Available:

• more than 40 logical functions;
• creation of custom algorithms;
• setting up interlocks;
• automation of technological processes;

Ready for integration:

• Modbus RTU;
• Modbus TCP;
• PROFIBUS DP;
• PROFINET;
• Type‑C service port;

Ease of use:

• color status indication;
• SOE event log;
• alarm oscillography;
• recording of recent emergency shutdowns;
• Configuration via the included LCD screen without taking the equipment out of service.

Retrofitting of existing systems.
SRP-MD can be used to upgrade existing motor control systems without completely replacing the control cabinet.

The device is an effective replacement for systems such as:

• Siemens Simocode Pro;
• Schneider Electric TeSys T;
• ABB M101;
• ABB M102;
• other intelligent motor protection relays.

Depending on the project requirements, the device can be expanded with additional modules.
Optional additional modules: SRP-KT with 6 NTC inputs, 1xDO and 2xDI “dry contact”; SRP-KR for insulation monitoring;