Type: M3PRC/S/2 & M3PRC/S/2-4W Phase Failure, Phase Sequence, Under and Over Voltage plus Time Delay 35mm DIN rail housing Microprocessor controlled with internal monitoring (self-checking) Monitors own supply and detects if one or more phases exceed the set Under or Over Voltage trip levels M3PRC/S/2 measures phase to phase voltage and M3PRC/S/2-4W measures phase to neutral voltage Detects incorrect phase sequence, phase loss and neutral loss (4-wire only) Adjustments for under and over voltage trip levels Adjustment for time delay (from an under or over voltage condition) Dims: 1 x DPDT relay output 8A to DIN 43880 Intelligent LED indication for supply and relay status Terminal Protection to IP20 W. 35mm FUNCTION DIAGRAM TECHNICAL SPECIFICATION Phases reversed Supply / monitoring Monitored Over trip 3~ Supply voltage Un* (L1, L2, L3): 3-wire: 110, 208, 220, 380, 400, 415V AC (phase to phase) Hyst. (L1, L2, L3, N): 4-wire: 63.5, 120, 127, 220, 230, 240V AC (phase to neutral) L1, L2 Frequency range: 48 - 63Hz L2, L3 Please state Supply variation: 70 - 130% of Un L3, L1 Supply / monitoring Isolation: Over voltage cat. III (4-wire only) N voltage when ordering Rated impulse Hyst. withstand voltage: 4kV (1.2 / 50 S) IEC 60664 Power consumption: red phase: 20VA (3-wire), 13VA (4-wire) Under trip Fixed Under trip 2 (max.) yellow phase: 0.2VA (3-wire), 0.1VA (4-wire) blue phase: 20VA (3-wire), 0.1VA (4-wire) Output Trip levels: Under 2 : 70% of Un (fixed) 2% Under: 75 - 95% of Un Td t t tr tr Td Over: 105 - 125% of Un time delay automatically cancelled as Measuring ranges: Under Over phase drops below 2nd trip point 63.5V: 48 - 60V 67 - 79V (4-wire **) 120V: 90 - 114V 126 - 150V (4-wire **) Installation work must be carried 127V: 95 - 121V 133 - 159V (4-wire **) INSTALLATION AND SETTING 220V: 165 - 209V 231 - 275V (4-wire **) out by qualified personnel. 230V: 173 - 218V 241 - 288V (4-wire **) BEFORE INSTALLATION, ISOLATE THE SUPPLY. 240V: 180 - 228V 252 - 300V (4-wire **) Connect the unit as required. The diagram below shows a typical installation, whereby the supply to 110V: 83 - 105V 116 - 138V (3-wire) the load is being monitored by the relay. If a fault should occur (i.e. fuse blowing), the contactor is de- 208V: 156 - 197V 218 - 260V (3-wire) energised removing the 3-phase supply to the load. The contactor only re-energises after the fault has 220V: 165 - 209V 231 - 275V (3-wire) cleared. 380V: 285 - 361V 399 - 475V (3-wire) 400V: 300 - 380V 420 - 500V (3-wire) Applyi ng power. 415V: 311 - 394V 436 - 519V (3-wire) Set the over % adjustment to maximum and the under % adjustment to minimum. Set the ** measured phase to neutral time delay to minimum. Repeat accuracy: 0.5% constant conditions Apply power and the green supply on and red relay LEDs will illuminate, the relay will energise Hysteresis: 2% of trip level (factory set) and contacts 15 and 18 / 25 and 28 will close. Refer to the troubleshooting table if the unit fails to Response time: 50 mS Time delay (t): 0.2 - 10 sec ( 5%) operate correctly. Note: actual delay (t) = adjustable delay + response time Setting the unit. Delay from Set the over % and the under % adjustments to give the required monitoring range. phase/neutral loss (tr): 100 mS (worst case = tr x 2) Power on delay (Td): 1sec. (worst case = Td x 2) If large supply variations are anticipated, the adjustments should be set further from the nominal voltage. Ambient temp: -20 to +60C Set the time delay as required. (Note that the delay is only effective should the supply increase Relative humidity: +95% above or drop below the set trip levels. However, if during an under voltage condition the supply Output: DPDT relay (15, 16, 18 / 25, 26, 28) nd drops below the 2 under voltage trip level, any set time delay is automatically cancelled and the relay Output rating: AC1 250V 8A (2000VA) de-energises). AC15 250V 3A DC1 25V 8A (200W) Troubleshooting. Electrical life: 150,000 ops at rated load Dielectric voltage: 2kV AC (rms) IEC 60947-1 The table below shows the status of the unit during a fault condition. Rated impluse Supply fault Green LED Red LED Relay withstand voltage: 4kV (1.2 / 50 S) IEC 60664 Phase or Neutral (4-wire only) missing Off Off De-energised Housing: Orange flame retardant UL94 VO Phases reversed (no delay) Flashing Off De-energised Weight: 100g Under or Over Voltage condition (during timing) On Flashing Energised for set delay (t) Mounting option: On to 35mm symmetric DIN rail to BS5584:1978 Under or Over Voltage condition (after timing) On Off De-energised (EN50 002, DIN 46277-3) Or direct surface mounting via 2 x M3.5 or 4BA screws using the black clips provided on the rear Phase below 70% of Un (fixed under trip level 2 ) On Off De-energised of the unit. Phase below 50% of Un Off Off De-energised 2 Terminal conductor size: 2 x 2.5mm solid or stranded Approvals: Conforms to IEC. CE and Compliant. Options: CONNECTION DIAGRAM For other supply/monitoring voltages, please contact the sales office. Local Fuse Board L1 (R) MOUNTING DETAILS L2 (Y) LOAD L3 (B) 89 (excl. clips) N* 45 Insert screwdriver Supply / Monitored *N - Neutral connection to release clips Voltage only available on 4-wire N* L3 L2 L1 version 49 59 15 25 16 18 26 28 Withdraw clips fully when surface mounting 93 (+/- 1mm) Phase monitor Contactor M3PRCS2-3-A Broyce Control Ltd., Pool Street, Wolverhampton, West Midlands WV2 4HN. England Tel: +44 (0) 1902 773746 Fax: +44 (0) 1902 420639 Email: sales broycecontrol.com Web: www.broycecontrol.com The Information provided in this literature is believed to be accurate (subject to change without prior notice) however, use of such information shall be entirely at the users own risk. 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