TVR Instruments are pleased to announce the addition to the Ziehl industrie elektronik range of temperature protection relays of the TR640IP and the TR660IP.

These two new temperature measuring and monitoring relays offer inputs for up to 6 sensors either 6 x Pt 100, Pt 1000, or PTC thermistors. Different sensors can be connected at the same time, e.g. Pt 100 (RTD) and PTC thermistors.The TR640IP has 4 limit relays and remote monitoring via TCP/IP connectivity, whilst the TR660IP has 7 limit relays, remote monitoring via TCP/IP LAN and the option of 4 analogue outputs programmable 2 x 0/4 – 20 mA and 2 x 0/2 – 10 V or RS485 RTU.

Typical applications are monitoring of motors, generators, or transformers. Another application is the use as a 2 – or more step – controller with additional monitoring of over or under temperature or monitoring of differences in temperatures of 2 sensors. Pre-set programs allow easy setting e.g. monitoring of transformers with/without monitoring of temperature of core or with/without controlling a ventilator.

Designed for DIN rail mounting they add to the range of panel and rail mounting temperature protection devices which Ziehl manufacture.

Ziehl’s electronic devices for industrial systems are innovative, future-oriented, and renowned for top quality. Working to the highest technical benchmarks, Ziehl develop and produce, using state-of-the-art systems and under a demanding quality management system. They are pioneers in producing electronic devices for modern and reliable measurement, control, and regulation technology to meet every requirement, be it in industrial applications, companies, private homes or rented buildings. Ziehl’s goals are sustainability, energy efficiency and maximising efficiency through using their products. Ziehl’s commitment to customer service and support make them the ideal partners for industry. Their products are made in Germany. Ziehl’s operations are certified in accordance with both ISO 9001:2015 and ATEX directive 2014/34/EU and are subject to regular monitoring for UL approved devices.