H6 thermal relay with reeveable current-transformer to
The three phase thermobimetall relays are suitable for the protecting of the electrical consumers - especially electric motors - against overcurrent and overheating.Characteristics of H6 thermal relay:
The compensating bimetallic unit ensures the operation irrespectively the actual ambient temperature (within the given wide temperature-range).
The resetting mode (manual or automatic) can be chosen.
The thermal relays have a double slide-system which operates the switch-off mechanism, in case of phase failure. It releases faster: (by standard within 2 hours at 15 % overload, but in practice after some minuts).
TEST button is suitable for verification of the functional capability.
The thermal (overload) relays refer to requirement of standard EN 60947-4-1.
The contacting mechanism contains two electrically independent NO and NC contacts.
They may be used in motorstarter, reversing, star-delta and other combinations.
The H6 thermal relay can be connected to the DLK-15, DLK-18, DLK-22-11, DLK-30-11 and DLK-37-11 contactors independently. The insulated connecting wires should be reeved through the holes of the transformer's body. The lead-in conductors of the secondary winding are connected to the proper terminals of the thermal relay by our factory.
|Choise of adjustable current-range [A]:||25 - 36|
|34 - 51|
|51 - 76|
|76 - 113|
|113 - 168|
|168 - 250|
Marks of the lower, middle and the upper values of current are printed
on the adjusting knob
(lower and upper limits on the front plate too). The value of the
motor's rated current should be adjusted by the knob to the arrow.|
Note: The thermal relays in a star-delta combination are loaded with the phase-current of the motor. The rated operational current of the motor is 3-times as much (that is the line-current). The corresponding lower and upper limits of the line-currents can also be found under the adjusting knob.
The resetting mode ("H" for manual, "A" for automatic) can be chosen by the right side (blue) button.