The Lovato range of frequency monitoring relays is self-powered for minimum and maximum control. The frequency relays have a rated frequency selection of 50 or 60Hz with a tripping threshold for minimum and maximum frequency. Excellent tripping accuracy and one configurable output and one SPDT changeover contact. Automatic re-set, single and three phase systems as standard.
Modular DIN 43880 housing 2 module
Excellent tripping accuracy
IEC protection: IP40 on front and only when placed in an IP40 enclosure or control board
IP20 at terminals
Single and three phase system
Delayed trip
Automatic reset
Tripping threshold
Attribute | Value |
---|---|
Monitoring Application | Frequency |
Supply Voltage | 220 → 240 V ac |
Contact Configuration | SPDT |
Electrical Phase | 1, 3 |
Time Delay | 0.1 → 20 s |
Frequency Sensing Range | 40 → 70 Hz |
Series | PMF20 |
Operating Temperature Range | -20 → +60 °C |
Height | 104.7mm |
Maximum Operating Temperature | +60°C |
Dimensions | 35.8 x 64.9 x 104.7 mm |
Mounting Type | DIN Rail |
Maximum Frequency Sensed | 70Hz |
Minimum Operating Temperature | -20°C |
Length | 35.8mm |
Number of Poles | 1 |
Standards Met | CSA C22.2 No. 14, CULus, File E93601, IEC/EN 60255-5, IEC/EN 61000-6-2, IEC/EN 61000-6-3, UL 508, UL Listed |
Terminal Type | Screw |
Width | 64.9mm |
Minimum Frequency Sensed | 40Hz |