DIB71CB235A

Monitoring Relays 1-Phase True RMS AC/DC Over or Under Current Type DIB71 • TRMS AC/DC over or under current monitoring relay • Current measuring through internal shunt • Selection of measuring range by DIP-switches • Measuring ranges from 0.1 mA to 5 A AC/DC • Adjustable current on relative scale • Adjustable hysteresis on relative scale • Adjustable delay function (0.1 to 30 s) • Programmable latching or inhibit at set level • Output: 5 A SPDT relay N.D. or N.E. selectable • For mounting on DIN-rail in accordance with DIN/EN 50 022 • 35.5 mm DIN-rail housing • LED indication for relay, alarm and power supply ON • Galvanically separated power supply Product Description Ordering Key DIB71 is a precise TRMS AC/DC over or under current (selectable by DIP-switch) monitoring relays. Direct measuring or through current transformer. Owing to the built-in latch function, the ON-position of the relay output can be maintained. Inhibit function can be used to avoid relay Housing Function Type Item number Output Power supply Measuring range operation when not desired (maintenance, transitions). The LED's indicate the state of the alarm and the output relay. Through the built-in shunt it is possible to monitor loads up to 5 A AC/DC. 35.5 mm wide housing suitable both for back and front panel mounting. DIB 71 C B23 5A Type Selection Mounting Output Measuring range Supply: 24/48 VAC Supply: 115/230 VAC DIN-rail DIN-rail DIN-rail DIN-rail SPDT SPDT SPDT SPDT 0.1 to 5 mA AC/DC 1 to 50 mA AC/DC 10 to 500 mA AC/DC 0.1 to 5 A AC/DC DIB 71 C B48 5mA DIB 71 C B48 50mA DIB 71 C B48 500mA DIB 71 C B48 5A DIB 71 C B23 5mA DIB 71 C B23 50mA DIB 71 C B23 500mA DIB 71 C B23 5A Input Specifications Input (current level) Measuring ranges Direct Selectable by DIP-switch ..5MA: 0.1 to 1 mA AC/DC 0.2 to 2 mA AC/DC 0.5 to 5 mA AC/DC Max. current for 1 s ..50MA: 1 to 10 mA AC/DC 2 to 20 mA AC/DC 5 to 50 mA AC/DC Max. current for 1 s ..500MA:10 to 100 mA AC/DC 20 to 200 mA AC/DC 50 to 500 mA AC/DC Max. current for 1 s ..5A: 0.1 to 1 A AC/DC 0.2 to 2 A AC/DC 0.5 to 5 A AC/DC Max. current for 1 s Terminals Y1, Y2 Internal resist. 100 Ω 100 Ω 100 Ω 10 Ω 10 Ω 10 Ω 1Ω 1Ω 1Ω 0.03 Ω 0.03 Ω 0.03 Ω Max. curr. 40 mA 40 mA 40 mA 100 mA 120 mA 120 mA 120 mA 300 mA 700 mA 700 mA 700 mA 1.4 A 6A 6A 6A 15 A Specifications are subject to change without notice (26.05.10) Measuring ranges (cont.) Standard CT (examples) TADK2 50 A/5 A CTD1 150 A/5 A CTD4 400 A/5 A TAD12 1000 A/5 A TACO200 6000 A/5 A AACrms 5 to 50 A 15 to 150 A 40 to 400 A 100 to 1000 A 600 to 6000 A Contact input Disabled Enabled Latch disable Terminals Z1, Y1 > 10 kΩ < 500 Ω > 500 ms Max. curr. 60 A 180 A 480 A 1200 A 7200 A 1 DIB71 Output Specifications General Specifications Output Rated insulation voltage Contact ratings (AgSnO2) Resistive loads AC 1 DC 12 Small inductive loads AC 15 DC 13 Mechanical life Electrical life Power ON delay Reaction time SPDT relay 250 VAC µ 5 A @ 250 VAC 5 A @ 24 VDC 2.5 A @ 250 VAC 2.5 A @ 24 VDC ≥ 30 x 106 operations ≥ 105 operations (at 5 A, 250 V, cos ϕ = 1) ≤ 7200 operations/h Operating frequency Dielectric strength Dielectric voltage 2 kVAC (rms) Rated impulse withstand volt. 4 kV (1.2/50 µs) Supply Specifications Power supply Rated operational voltage through terminals: A1, A2 or A3, A2 B48: B23: Dielectric voltage Supply to input Supply to output Input to output Rated operational power AC Overvoltage cat. III (IEC 60664, IEC 60038) 24/48 VAC ± 15% 45 to 65 Hz, insulated 115/230 VAC ± 15% 45 to 65 Hz, insulated 4 kV (1.2/50 µs) 4 kV (1.2/50 µs) 4 kV (1.2/50 µs) 3 VA 1 s ± 0.5 s or 6 s ± 0.5 s (input signal variation from -20% to +20% or from +20% to -20% of set value) < 100 ms < 100 ms (15 min warm-up time) ± 1000 ppm/°C ± 10% on set value ± 50 ms ± 0.5% on full-scale Alarm ON delay Alarm OFF delay Accuracy Temperature drift Delay ON alarm Repeatability Indication for Power supply ON Alarm ON Output relay ON Environment Degree of protection Pollution degree Operating temperature 5A others Storage temperature Housing Dimensions Material Weight Screw terminals Tightening torque Product standard Approvals CE Marking EMC Immunity Emissions LED, green LED, red (flashing 2 Hz during delay time) LED, yellow (EN 60529) IP 20 3 -20 to 50°C, R.H. < 95% -20 to 60°C, R.H. < 95% -30 to 80°C, R.H. < 95% 35.5 x 81 x 67.2 mm PA66 or Noryl Approx. 150 g Max. 0.5 Nm acc. to IEC 60947 EN 60255-6 UL, CSA L.V. Directive 2006/95/EC EMC Directive 2004/108/EC According to EN 60255-26 According to EN 61000-6-2 According to EN 60255-26 According to EN 61000-6-3 Mode of Operation DIB71 monitors both AC and DC over or under current through an internal shunt. Example 1 (connection between terminals Z1, Y1 - latching function enabled) The relay operates and latches in operating position when the measured value exceeds (or drops below) the set level for more than the 2 set delay time. Provided that the current has dropped below (or has exceeded) the set point (see hysteresis setting), the relay releases when the interconnection between terminals Z1, Y1 is interrupted or the power supply is interrupted as well. The red LED flashes until the delay time has expired or the measured value comes back to a non-alarm value (see hysteresis setting). Example 2 (Stardard CT) (no connection between terminals Z1, Y1 - latch function disabled) The relay operates when the measured value exceeds (or drops below) the set level for more than the set delay time. It releases when the current drops below (or exceeds) the set level (see hysteresis setting) or when power supply is interrupted. Note When the inhibit contact is opened, if the input signal is already in alarm position, the delay time needs to elapse before relay activation. Specifications are subject to change without notice (26.05.10) DIB71 Function/Range/Level and Time Delay Setting Adjust the input range setting the DIP switches 1 and 2 as shown in figure. Select the desired function setting the DIP switches 3 to 6 as shown in figure. Selection of level and time delay: Upper knob: Setting of hysteresis on relative scale: 0 to 30% on set value. To access the DIP switches open the plastic cover as shown in figure. Centre knob: Current level setting on relative scale: 10 to 110% on full scale. Lower knob: Setting of delay on alarm time on absolute scale (0.1 to 30 s). Measuring range SW1 SW2 5MA 50MA 500MA 5A ON OFF 1 mA 10 mA 100 mA 1A ON ON 2 mA 20 mA 200 mA 2A OFF ON 5 mA 50 mA 500 mA 5A Relay working mode ON: Normally De-energized OFF: Normally Energized Power ON delay ON: 6 s ± 0.5 s OFF: 1 s ± 0.5 s Contact input ON: Latch function enable OFF: Inhibit function enable Monitoring function ON: Over current OFF: Under current Operation Diagrams Over current - N.D. relay Under current - Latch function - N.D. relay Under current - N.D. relay Over current - Inhibit function - N.D. relay Specifications are subject to change without notice (26.05.10) 3 DIB71 Wiring Diagrams Example 2 Example 1 Latch/Inhibit Enable 48/230 VAC L Y1 Y2 I Z1 48/230 VAC 24/115 VAC 24/115 VAC L m A1 A3 16 18 PE A2 Y1 Y2 15 I Z1 A1 m A3 A2 16 18 15 N (-) N (-) Dimensions 35.5 67.2 45 2 81 18.7 4 Specifications are subject to change without notice (26.05.10)