EXTA
Automation
buildings
PRODUCTS EXTA - BUILDING AUTOMATION
PHASE SEQUENCE SENSOR 230/400V AC TYPE: CKH-01
Product Description
Phase sequence sensor CKH-01 is used to protect devices powered from three-phase power supply (eg motors) from damage, in the event of phase loss, phase or asymmetry
phase sequence. The threshold voltage is set to 185 V and can not be adjusted by the user. The system does not protect against a symmetrical voltage drop. The system is powered from L1 phase. Off delay and voltage hysteresis cause the system to withstand short-term voltage fluctuations.
phase sequence. The threshold voltage is set to 185 V and can not be adjusted by the user. The system does not protect against a symmetrical voltage drop. The system is powered from L1 phase. Off delay and voltage hysteresis cause the system to withstand short-term voltage fluctuations.
PRODUCT FUNCTIONAL FEATURES:
- Wrong phase sequence protection,
- optimum trip voltage (asymmetry) 185 V,
- momentary voltage fading protection max 10 A capacity,
- phase fading protection,
- switch off delay and voltage hysteresis
- a separate output for the output terminals of the relay,
- voltage asymmetry protection,
- resistant to momentary voltage drops,
- hermetic casing (IP 65)
Width 56 mm
Height 69 mm
Depth 27 mm
Voltage measurement range 185/185 V
Max. permitted delay-on energization time 10 s
Min. adjustable delay-on energization time 5 s
Max. permitted off-delay time 5 s
Min. adjustable off-delay time 1 s
Voltage type for actuating AC
Number of contacts as normally closed contact 0
Number of contacts as normally open contact 0
Number of contacts as change-over contact 1
Power supply terminals L (black), N (blue)
Rated supply voltage 230/400 V
Rated temperature -20/60 °C
Rated frequency 50/60 Hz
Parameters of relay contacts 1NO - 10 A / 250 V AC1 2500 VA
Protection degree IP65
Width 69 mm
Height 56 mm
Depth 27 mm
Weight 98 g
Hysteresis 10 V
Length of packaging 4 cm
