The Schneider Electric LRD21 thermal overload relay is part of the TeSys range and is for use on AC/DC networks. It has a thermal protection adjustment range of 12 to 18 amps.
- TeSys range
 - for use with LC1D18, LC1D25, LC1D32, LCD138
 - AC/DC compatible
 - 12-18 amp thermal protection adjuistment range
 - 0-400 Hz network frequency
 - Rated for 600 platevolts
 - Plate mountable