Buy Switch of the phases APF-451 (PF-451) automatic
Switch of the phases APF-451 (PF-451) automatic

Switch of the phases APF-451 (PF-451) automatic

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Ukraine, Odessa
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Technical characteristics
  • BrandЕлектросвіт
  • Country of manufactureUkraine
  • Voltage220 V
Description
Appointment: the automatic switch of the phases APF-451 is intended for maintenance of constant level of supply voltage of single-phase devices in case of loss of a phase of food or an exit of level of tension in it out of the set limits by switching of food on other phase with the correct parameters.

Action: on an entrance of the switch the three-phase four-wire supply voltage is brought, and from an exit tension of one phase moves. If the level of output tension exceeds the set limits, the switch will give on an exit a phase with the correct parameters. During switching (switching off of one phase and inclusion another) at the exit quickly there is no tension. The switch of the phases APF-451 is adapted for connection of three additional relays (contactors) to each phase for power supply of devices by current over 16 And. Without additional relays the maximum current of food makes 16 A. Damage of a working phase (burn-out of contacts, a rupture of a chain of the coil) will lead to switching of food on other phase. The design of the device does not allow to turn on more than one relay at the same time therefore in case of sticking of contacts of the relay in a phase chain switching on other phase will not happen to the wrong parameters.

Technical characteristics
tension on an entrance 3х220 V ~ + N
tension at the exit 220 V ~
maximum current of loading 16 A
lower threshold of operation 150 - 210 V
top threshold of operation 230 - 260 V
switching time 0,5 - 0,8 with
voltage measurement error ±1%
hysteresis 5 B
switching wear resistance 105 cycles
range of working temperatures from -25 °C to +50 °C
degree of protection IP40
connection clips screw 2,5 mm2
dimensions 5 modules S (87,5 mm)
installation on a DIN lath of 35 mm
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Switch of the phases APF-451 (PF-451) automatic
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