Protective enclosure
Type of protective enclosure of the control and terminal boxes is IP 65, as per ČSN EN 60529 (33 0330). Type of protective
enclosure of the electric motor is IP55 (or IP 54 or IP 65, upon special request) as per ČSN 35 0001.
Operation
The MODACT MO Eex electric actuators consist of explosion proof three-phase, power gearing containing an epicyclic gear unit
and a control section with a terminal board. The control section is provided with torque- and position switching units, a signaling
unit and a heating element for microclimate conditioning of the control box. The actuators can be fitted with a resistance position
transmitter of 1 x 100 or a current transmitter with unified signal of 4 to 20 mA (without power
supply).
Insulation strength of electric circuits
Insulation strength of electric circuits of the actuators should correspond to ČSN 18 6330, paragraph 5.3.3.
The following tests should be made:
Circuit of remote position transmitter 1 x 100 500 V, 50 Hz
Circuits of microswitches and anti-condensation heater 500 V, 50Hz
Circuit of electric motor 100V + 2. Un at least 1,500 V, 50 Hz
Circuit of the capacitance transmitter CPT 1/A50 V ssent
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