SEW 890 PR Non-Contact Type Phase Sequence Indicators
Phase Detector (RST)
SEW 890 PR
● The 890 PR is a Non-Contact phase detector with flashing LEDs and a beeping buzzer to show the detection of AC 3-phase sequence. ● Two functions in one unit : open phase and phase sequence detection. ● Convenient brightness switch to make the indication visible in dim areas or sunlight. ● Back cover magnets which attach the instrument to the AC distribution panel offer easy measurement. ● 3-Phase AC 70 to 1000V is fitted for detection.
● Conductor size: 1~35mm ● Detect frequency range is from 45 to 65Hz.
5 min. after power on without detection
Low battery warning
Power LED flashes at 4.6±0.1V or less
Operating temperature & humidity
0°C ~ 40°C Max. 80% R.H.
Storage temperature & humidity
-10°C ~ 50°C Max. 80% R.H.
115(L) × 65(W) × 40(D)mm
Weight (battery included)
1.5V (AA) × 4 Alkaline batteries
EN 61010-1 CAT III 1000V / CAT IV 600V EN 61326-1 EN 61557-1 EN 61557-7