Phase switch KF-3M
The KF-3M module is connected to three-phase power supply network and ensures switching over of the single-phase consumers at full failure of the “working” phase power supply voltage for the phase, provided with power supply.
Use
It is used in networks with unstable voltage for power supply of the protection-firewarning systems, video surveillance, authorized access, production and technological single-phase equipment with continuous operation cycle.
Technicalcharacteristic
* Threshold values are valid for the phase L1 and L2. Phase tension L3 at disconnected by L1 and L2 is broadcast directly on the L out.
Construction
The KF-3M module is executed in the case for installation on a DIN lath.
On the forward panel of the module there is an indicator of existence of mains voltage.
In the top and lower part of the module there are terminal blocks for connections to a network and to loading. Power supply of the relay is carried out from the entrance networks.
Рис.: Connection of KF 3M.
|
Parameter |
Value |
| Rated entrance three-phase voltage | 380/220 V; 50 Hz |
| Rated output single-phase voltage | 220 V; 50 Hz |
| The switched current (АС1 250 V) max | 16 А |
| Phase tension of turning on of the relay min/max | 198/242* V |
| Phase tension of switching off of the relay min/max | 176/252* V |
| Overall dimensions of the block | 71 х 90 х 60 mm |
| Weight, no more | 0,3 kg |
* Threshold values are valid for the phase L1 and L2. Phase tension L3 at disconnected by L1 and L2 is broadcast directly on the L out.
Construction
The KF-3M module is executed in the case for installation on a DIN lath.
On the forward panel of the module there is an indicator of existence of mains voltage.
In the top and lower part of the module there are terminal blocks for connections to a network and to loading. Power supply of the relay is carried out from the entrance networks.
Рис.: Connection of KF 3M.