MRS13R - Overcurrent protection relay

The MRS13R is an overcurrent protection relay. It reliably protects electrical systems against short cir cuits and current overloads. It detects dangerous overcurrents rapidly and activates a switching response in less than 20 ms.

The MRS13R is an overcurrent protection relay. It reliably protects electrical systems against short cir
cuits and current overloads. It detects dangerous overcurrents rapidly – within 3.1 - 4.5 ms – and activates a switching response in less than
20 ms.
The MRS13R works either with a current transformer or can be con
nected directly to AC or DC loads. As soon as a defined threshold
value is exceeded, the relay activates any connected switching device
such as a circuit breaker and simultaneously provides an alarm signal.
Unlike conventional fuses, the MRS13R resets automatically: as soon
as the fault is cleared, it returns to its normal state without the need
to replace a component. The forcibly guided contacts guarantee a reli
able and clear feedback signal to the higher-level control system.
The additional diagnostic input can be used to externally trigger the
relay in order to verify the mechanical switching integrety – regardless
of an actual fault.
The display shows the operational status and parameters, while an
LED indicates the overcurrent status. The menu-based configuration
features a three-button interface for navigating menues and adjusting
parameters