The Smart Power Relay E-1048-S6xx: Three Functions All-in-One Unit

For reliably switching, protecting and monitoring PLC-controlled resistive, inductive or lamp loads in DC 24 V systems, E-T-A Elektrotechnische Apparate GmbH, Germany, offers a new plug-in type Smart Power Relay E-1048-S6xx with a comprehensive performance to protect against overload, short circuit and wire break may cause costly consequential damages and long downtimes. 

Type E-1048-S6xx is an optimised purely electronic relay offering protective, monitoring and diagnostic functions. It features wear-free operation, permanent monitoring of the load circuit with regard to wire break and provides reliable protection against short circuit and overload of loads and load lines. Available versions are rated from 0.5 A to 4 A in a space-saving width of only 12.5 mm. The new relay model is suitable for a wide range of operating temperatures up to +60°C without derating, i.e. without performance reduction.

The integral time/current characteristic has the E-1048S-6xx respond similarly to a thermal circuit breaker for equipment protection with additional remote disconnection and reconnection. In the event of a short circuit or overload in the load circuit the device Provides reliable current limitation and quick disconnection. The current status is indicated by means of two LEDs. In the event of a failure the device has a double failure indication: visually by means of a red LED and electronically via an opto-coupler in the signal output. 

Its triple functionality as an electronic relay, overcurrent protection device and diagnostic device makes the E-1048-S6xx a powerful replacement for a whole series of plug-in connections, thus helping to avoid possible failure sources.

Typical applications are in switching of motors, magnetic valves and signalling lamps in process control or as a coupling component for programmable control units in automation. Outputs up to DC 24 V / 4 A can be enhanced to allow usage of standard sub-assemblies with small output current ratings in the PLC. 

Caption:

Three functions in one unit: the E-1048-S6xx made by E-T-A serves as electronic relay, overcurrent protection and diagnostic module (photo: E-T-A)