PFW2-2-480

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.

Description

Ordering data

Input data

Output data

General data

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