Description Relay PNM-31 is used to control the voltage values in three-phase network appliance to protect against overvoltage and undervoltage above / below a set threshold. The system is equipped with time off delay time (about 5 seconds). The system detects 40 watt sun incorrect phase sequence and asymmetric 40 watt sun voltage.
Feature is intended to protect consumers in the three-phase network from voltage spikes, voltage asymmetry and wrong phase sequence control and signaling voltage levels at each stage of the regulation minimum (from 170 to 225V), maximum (from 235 to 290V) Voltage 40 watt sun Control and signaling correct sequence phase and voltage asymmetry fixed time delay shutdown output - max 16 A status indicator relay DIN-rail
Using Relay PNM-31 cooperates with annunciator voltage LDM-30th The value of voltage three-phase network is evaluated by the system, the inputs of the protected 40 watt sun circuit in case of overvoltage / undervoltage mino set range disconnected. Voltage indicator allows continuous visualization of the supply voltage of the protected circuit. If the system detects after starting incorrect phase sequence, the yellow LED if the phase sequence is correct, it will check the voltage level at each stage. If the voltage at any stage does not match the set range starts countdown disconnection (about 5 seconds). Until the end of the countdown return to the desired voltage level is switched off (red LED goes out). To restart the appliance occurs in the torque to return the voltage to the desired level (taking into account the hysteresis of approximately 3V). Three green LEDs indicate the voltage on each phase L1, L2, L3. If the LED ( ) lights 40 watt sun located guarded tension in the set range. Fast flashing diodes (xxxxx) is exceeded, Umax, slow flash (xxxx) drop below Umin. The system also detects the voltage asymmetry 40 watt sun means. disconnects the output contacts and yellow LED flashes when the potential difference between the phases is higher than 50V.
Yellow LED
0,2 2,50 mm 2
2-module (35 mm) 90 x 35 x 66 mm
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