Ziegler 6RTD thermal overload relays is a temperature trip relay accepting up to six inputs from resistance temperature detector ( RTD ) elements . The temperature trip point, common to all six channels , is user adjustable . with LED indication of normal ( green ) or tripped ( red ) condition .
Other features of this device are :
- Upto 6 RTD inputs
- Adjustable set point
- Internal differential
- LED trip indication
- Auto reset
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