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3. Using
■Normal service condition
(1) Ambient temperature ：-5℃ to 55℃ (-5℃ to 40℃ in the case of DC operation type)
(2) Relative humidity
(3) Altitude
(4) Atmosphere
Usage notes
■
(1) Don't touch or approach the product while it is energized. There is a risk of electric-shock or burns.
(2) Don't operation when the insulation cover is removed. There is a risk of short circuit.
(3) The Thermal Relay must set the motor's rated current by the adjusting knob, and use.
・ The "・" near the number in the dial indicates the setting position of the median, minimum,
and maximum values. (Since individual adjustments are made, the position of "・" may vary.)
・Please note that the initial position of the adjusting knob varies depending on the specification.
(4) Don't set Thermal Relay beyond the range of the scale indicated on the product. Doing so may
cause malfunction during overload or malfunction during no load. If it works frequently, be sure to
investigate and eliminate the cause.
(5) Connecting wire of Thermal Relay has a play to facilitate position adjustment when working in combination
with Contactors. Therefore, there are some models with variations in the initial position and line length,
but it is not bad.
■ Thermal Relay Operating Instructions
① Adjusting knob
② Reset button
③ Trip lever
TRC12,TRC12M
・Adjusting knob
The "・" show the position that
the median, minimum, and
maximum value. The arrow
position set the rated current
of the motor.
・Trip and stop button(TRC32,TRC63)
(※) This function allows the motor to be stopped in an emergency by pressing a button. The Normal
close contact leaves only while the button is pressed, but the Normal open contact doesn't switch. For
details See Table4.
Terminal No.
95-96
(Normal close
contact)
97-98
(Normal open
contact)
：45 to 85% (No condensation)
：2000m or lower
：Must be free from corrosive gas, combustible gas, dust, vapor, salt, oil-mist etc.
During trip operation,
Protrudes forward.
During test operation,
pull put it out.
・Stop operation (※)；
Push the button.
・Test operation (Trip)；
Open the top cover, and pull the button.
Table4. TRC32, TRC63 Auxiliary Terminal Behavior Diagram
Normal
TRC32,TRC63
・Reset button(Manual/Automatic reset toggle button)
Manual Reset
Stop
Trip / Test
① Adjusting knob
② Trip and stop button
③ Behavior display
(Change to orange in trip mode)
④ Reset button
Automatic Reset
Reset
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