- PFW2- 2 480 phase control module for assessment of the correct phase sequence of three-phase loads.
- Effectively prevents destruction or damage caused by wrong motor rotation direction.
- The PFW2- 2 480 module is used to assess direction of rotation and phase failure. It features a changeover, whose normally open contact closes if the phase sequence rotates clockwise.
- The PFW2- 2 480 module is directly supplied from the three phases.
PRODUCT DESCRIPTION
If the correct phase sequence in installations and circuits is the prime consideration, the PFW2- 2 480 module prevents malfunctions.
This may be especially important when the commissioning of a plant with motors may lead to severe failures or even to the destruction of facilities, in case of wrong direction of rotation.
NOTES ON CONNECTION
The PFW2- 2 480 module is connected in parallel with the load and assesses the rotation direction of the phases. If the phase sequence is clockwise (L1-L2-L3), the relay trips and the normally open contact (terminals C and D) closes. If another phasing is present, the relay does not trip. For a function to operate, all three phases must be simultaneously activated.
The BONTRONIC module simultaneously acts as a phase failure check. If necessary, the reaction to reverse power via the load should be field-tested. The PFW2- 2 480 module is suitably installed in front of the motor protection contacts and trips the control voltage of the contactor coils if there is a clockwise phase sequence via the normally open contact.
Case colour: grey | |
Type | PFW2- 2 480 |
Order number | 911107 |
Input voltage (3 phases) | 480 V ± 10%, 50-60 Hz |
Current consumption | 4mA max. per Phase |
Phase power consumption | 4VA max. |
Phase sequence | L1 – L2 – L3 |
Contact arrangement | 1 Wechsler |
Switching voltage | 250V AC |
Continuous current | 5A |
Inrush current | 8A |
Switching power AC max. | 1200 VA (ohmic load) |
Switching power DC max. | 120 W (ohmic load) |
Coil/contact isolation voltage | 4 kV ms |
Service temperature | 0°C to +40°C |
Storage temperature | – 20°C to +80°C |
Degree of protection | IP 20 |
Screwed connection | AWG 12 |
Dimensions | 85 x 58 x 35 mm |
Price
Price from 10 to 25 pcs | 69€* |
Price from 26 to 50 pcs | 56€* |
> 50 | Quote request |
* no packaging and ex works, EXW Troisdorf