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Voltage monitoring

Monitoring relay, Features: Monitoring and protection of phase sequence/phase failure/phase imbalance for 3-phase systems, Alarm output: 1 x NO/NC, Supply voltage: 154-500 V AC, Dimensions: 17.5 x 90 x 60 mm, Mounting: 35 mm DIN-rail, Terminal connection
Item number: 104300
£12.79
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Monitoring relay, Features: Undervoltage/Overvoltage protection for 3-phase systems, True RMS measurement, Time functions: Power ON/Trip time/Recovery time delay (0-99.9 s), Additional features: Alarm display; Locking; Reset, 3-digit LCD with backlight, Built-in current transformer, Adjustable switching hysteresis, Alarm output: 2 x NO/NC, Supply voltage: Self-supporting, Dimensions: 35 x 90 x 70.5 mm, Mounting: 35 mm DIN-rail, Terminal connection
Item number: 104293
£29.81
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Monitoring relay, Features: Undervoltage/overvoltage protection incl. Neutral conductor failure for 3-phase systems, True RMS measurement, Time functions: Power ON/Trip time/Recovery time delay (0-300 s), Additional features: Alarm display; Locking; Reset, 3-digit LCD with backlight, Built-in current transformer, Adjustable switching hysteresis, Alarm output: 2 x NO/NC, Supply voltage: 85-270 V AC/DC, Dimensions: 35 x 90 x 70.5 mm, DIN-rail mounting, Terminal connection
Item number: 103527
£37.72
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Monitoring relay, Features: Undervoltage/Overvoltage protection for 1 and 3-phase systems, Time functions: Power ON/Tripping/Response time delay, Additional features: Alarm display; Reset. Analogue, Input voltage: 230 V AC, Dimensions: 35 x 90 x 60 mm, Mounting: 35 mm DIN-rail, Terminal connection
Item number: 104295
£17.48
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Monitoring relay for 3 phase networks, Features: Undervoltage monitoring for AC voltage in 3-phase networks/Phase sequence, Phase failure and asymmetry monitoring with adjustable asymmetry/Connection of the neutral conductor optional, Tripping delay: fixed/approx. 100 ms, Rated voltage: 250 V AC, 1 x Change over contact, Terminal connection
Item number: 104203
£55.11
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Monitoring relay for 1 and 3 phase networks, Features: Undervoltage monitoring (UNDER)/Undervoltage and phase sequence monitoring (UNDER+SEQ)/Monitoring of the window between Min and Max (WIN)/Monitoring of the window between Min and Max and monitoring of phase sequence (WIN+SEQ), Tripping delay: 0-10 s, 1 x changeover contact, Rated voltage: 250 V AC, Terminal connection
Item number: 103562
£81.88
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Monitoring relay for 1 and 3 phase networks, Features: Voltage monitoring with adjustable thresholds/adjustable tripping delay/monitoring of phase failure; Phase sequence and asymmetry with adjustable asymmetry/Undervoltage monitoring (UNDER)/Undervoltage monitoring and monitoring of phase sequence (UNDER+SEQ)/Monitoring the window between Min and Max (WIN)/Monitoring of the window between Min and Max and monitoring of phase sequence (WIN+SEQ), Tripping delay: 0-30 s, 2 x change over contacts, Rated voltage: 250 V AC, Terminal connection
Item number: 104204
£109.48
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Monitoring relay for 3 phase networks, Fusing: 5 A fast acting, Features: Undervoltage monitoring (UNDER)/Undervoltage and phase sequence monitoring (UNDER+SEQ)/Monitoring of the window between Min and Max (WIN)/Monitoring of the window between Min and Max and monitoring of phase sequence (WIN+SEQ), Tripping delay: 0.1-10 s, 2 x changeover contacts, 24-240 V AC/DC, Terminal connection
Item number: 104207
£137.08
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Monitoring relay for 3 phase networks, Fusing: 8 A fast acting, Features: Phase sequence/Phase loss/Symmetry monitoring, Time functions: Start-up delay approx. 400 ms/Tripping delay < 250 ms, 1 x change-over contact, 208-480 V AC, Terminal connection
Item number: 104208
£42.50
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Monitoring relay for 1 phase networks, Fusing: 8 A fast acting, Features: Undervoltage monitoring (U)/Window function (WIN), Time functions: Start-up delay approx. 300 ms/Tripping delay 0.1-10 s, 1 x changeover contact, 24 V DC/230 V AC/DC, Terminal connection
Item number: 104209
£64.03
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