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Phase sequence relay |
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Related Products
Phase Sequence Relay 200–500V F&F CKF-317 is designed to monitor the presence, correct sequence, and symmetry of phases in three-phase electrical networks. The device protects electric motors and industrial equipment from operation when one of the phases is missing, from incorrect phase sequence, or from excessive voltage asymmetry, preventing damage to the motors and changes in their rotation direction.
The relay operates directly from the monitored three-phase network 3×400 V + N (control range 200–500 V), equipped with one switching contact of 10 A, and it is mounted on a standard 35 mm DIN rail. The threshold for phase asymmetry can be adjusted within 40–80 V, with a disconnection delay of 4 seconds to prevent false tripping during short voltage fluctuations. LED indicators allow for quick determination of the network status and correct phase connections.
Specifications:
Brand: F&F
Model: CKF-317
Type: phase sequence and asymmetry control relay
Power Supply Voltage: 3×400 V AC + N (control range 200–500 V)
Monitoring: presence of phases, phase sequence, phase asymmetry
Asymmetry Threshold: 40–80 V (adjustable)
Hysteresis: 5 V
Disconnection Delay: 4 s
Contact Type: 1 switching (NO/NC)
Maximum Contact Current: 10 A
Mounting Type: DIN rail 35 mm
Width of Housing: 18 mm (1 module)
Operation Indication: 2 LEDs
Protection Rating: IP20
Purpose: protection of three-phase electric motors and industrial equipment
Applications: plastering stations, compressors, pumps, ventilation systems, conveyors, machines, and other three-phase equipment
Advantages: phase sequence monitoring, protection from phase break and asymmetry, adjustable tripping threshold, DIN rail mount, LED indication, high reliability, and long service life.
Gypsum plaster 
Plastering stations 
MIXXMANN 
PFT 
Painting and plastering stations 
Used plastering stations 
Electric motors, gearboxes 
Engines 
Vibrator 
Gears 
Gearbox axis 
Bearings 
Seals 
Engine reducer flange 
Engine housing spare parts 
Compressor equipment 
Compressors 
Compressor filters 
Compressor repair kit 
Compressor housing spare parts 
Automation for the compressor 
Spare parts for plastering machines 
Plastering guns 
Nozzles, jets for decorative plasters 
Mixing spiral holders 
Mixing spirals 
Cleaners 
Flooring mixer 
Mixing chambers 
Pressure flanges 
Additional bunker 
Grid of the bunker 
Wheels 
Rubber mixing zone 
Water pumps 
Needle valves 
Water purification filters 
EWO connection 
Nipples 
Brass fittings 
Mounting for plastering machines 
Locks, bolts 
Gaskets, seals 
Housing caps 
Screws for plastering machines 
Screw pair 
Stator 
Rotor 
Crimping sleeves 
Hoses for construction equipment 
Hoses for solution supply 
Oil hoses 
Hoses for painting equipment 
Water-air hoses 
The balls are washable 
Connection for construction equipment 
PERROT connection 
CAMLOCK connection 
GEKA connection 
Hoses 
Control and measurement instruments 
Pressure switch air 
Water pressure gauge relay 
Water solenoid valves 
Pressure reducers 
Flasks (flow meters) 
Manometers 
Automation for plastering stations 
Frequency converters 
Switches 
Transformers 
Contactors 
Protection machines 
Potentiometers, phase relays 
Network filter 
Signal lights and buttons 
Power connectors 
Cable and wire products 
Components for electrical panels 
Construction tools 
Measuring instrument 
Painting and plastering tools 
Building consumables 
Hand tool 
Construction inventory 
Power tools 
Floor troweling machines 
Grinding discs for floor polishing machines 
Wall plastering machines 
Discs for troweling machines (for walls) 
Construction mixers 
Mixers for the mixer 
Air dryers 
Electric tool 
Cordless tools 
Gasoline-powered tools 
Voltage stabilizers 
Building materials 
Plaster 
Window profiles 
Corner brackets 
Lighthouses 
Primer 
Additives for concrete mixtures 
Reinforcing mesh 
Fiberglass 
Workwear 
Work shorts 
Work t-shirts 
Work overalls 
Work vests 
Personal protective equipment (PPE) 
Construction knee pads 
Shoe covers for poured flooring. 
Protective gloves 
Painting equipment 
Cement plaster 
Drive reducer 
Reducer of the plastering station drive 
Drive reducer gears 
Drive gearbox bearings 
Snap rings 
Drive reducer seals 
Spare parts for Putzmeister P13 
Piston pump for solution 
Bunker shaft 
Belts, pulleys 
Putzmeister P13 crankshaft 
Parts of the piston system 
Hopper blade 
Valves 
Putzmeister P13 cranes 
Vibrator details 
Spare parts for clutch 
Compressor 
Electrical equipment 
Oil bottle 
Bumpers, cushions 
Putzmeister P13 bushings 
Putzmeister P13 bearings 
Sanitary pads 
Manometers for Putzmeister P13 
Fittings 
Metric products 
Body spare parts 
Components for cement plaster. 
Pistols for cement plastering 
Attachments, nozzles 
Machines for screed pouring 
Components 
Extinguishers 
Barrel lid spare parts 
Loading funnel 
Barrel flange 
Flange repair kits 
Shovels 
Armor 
Barrel spare parts 
Clutch sleeve 
Drive shaft 
Belts 
Cranes 
Hydraulic pumps 
Spare parts for pneumatics 
Check valve 
Connection 
Electrical equipment 
Central lubrication tools 
Manometers for pneumatic injectors 
Fuel tanks 
Trailer, wheels 
Shock absorbers 
Body spare parts 
Engine spare parts 
Crankshaft, distribution shaft 
Piston rings, connecting rods 
Valves, engine lifters 
Insert 
Engine bushings 
Engine gaskets 
Engine cushion 
Flywheel crown 
Radiator cooling fans 
Timing belt repair kit 
Pressure and temperature sensors 
Starters, generators 
High pressure fuel pump 
Fuel pump of the engine 
Oil pump 
Filters 
Oil cooling radiator 
Hour meter 
Exhaust pipe details 
Oil level dipstick 
Spare parts for screw compressors 
Repair kits for screw compressors 
Screw compressor valves 
Mounting of the screw compressor 
Lubrication sensors 
Belt drives for the compressor. 
Filter-separators 
Drive reducer spare parts 
Gearbox 
Gears, shafts 
Reduction gearbox bearings 
Reducer sleeve 
Mounting bracket 
Retaining rings, pins 
Reducer washers 
Reducer seals 
Rangefinders 
Laser levels 
Water level 
Equal, equal rules 
Digital level 
Roulettes 
Rules 
Kadecha (toothed rules) 
Mechanical spatulas 
Paint spatulas 
Irons 
Grater with teeth 
Trowels 
Sponge graters 
Foam graters 
Putty rollers 
Painting rollers, telescopic handles. 
Paint brushes 
Tool for composite tape 
Tools for Self-Leveling Floor 
Protective film 
Construction buckets 
Construction tapes 
Tile laying tools 
Plastering sponges 
Grinding wheels 
Sanding nets 
Planes, scrapers 
Scissors 
Keys 
Hand tool sets 
Hammers 
Axes 
Screwsdrivers 
Additional hand tools 
Stairs, stepladders, stilts 
Construction wheelbarrows, warehouse carts 
Shovel 
Sprayers and atomizers 
Spotlights