Safety relay Schneider Electric Harmony XPSUAT33A3AC
The Harmony XPSUAT33A3AC safety relay from Schneider Electric is used for the monitoring of safety-related circuits. It has three NO contacts as enabling current paths, three NO contacts as enabling current paths with a time delay of 0 to 900 seconds, as well as an auxiliary contact, and can be controlled on three channels with cross-wire monitoring. To facilitate diagnosis and maintenance, the relay has a pulsed semi-conductor diagnostic output. This can be analysed using an SPS diagnostics block.
The Harmony XPSUAT33A3AC safety relay, with a 48-240 V AC/DC power supply, offers a functional display with six yellow LEDs, as well as a green (power) and a red (error) LED. It is connected via detachable spring-clamp terminals and can be mounted onto a DIN 35 rail.