Type: MXPRF M X Se r i e s Phase Failure, Phase Sequence and Under Voltage 17.5mm DIN rail housing True R.M.S. Microprocessor based (self checking) Monitors own supply and detects an Under voltage condition on one or more phases Measures phase to phase voltages Detects incorrect phase sequence and phase loss Fixed under voltage trip level Fixed time delay 1 x SPDT relay output 8A Intelligent LED indication for supply and relay status * FUNCTION DIAGRAM Phases reversed L1 L2 L3 Hyst. Fixed Under trip Output t t t * INSTALLATION AND SETTING * * Td Installation work must be carried out by qualified personnel. BEFORE INSTALLATION, ISOLATE THE SUPPLY. Connect the unit as required. The Connection Diagram below shows a typical installation, whereby the supply to a load is being monitored by the Phase monitoring relay. If a fault should occur (i.e. fuse blowing), the relay will de-energise and assuming control of the external Contactor, de-energise the Contactor as well. Applying power. * Apply power and the green "Power supply"X and red "Relay"Y LED's will illuminate, the relay will energise and contacts 15 and 18 will close. Refer to troubleshooting table if the unit fails to operate correctly. Supply / monitoring voltage U* (L1, L2, L3): If the supply voltage increases above the maximum supply/monitoring voltage range by approx. 10% or more, the relay will de-energise immediately. This device is not suitable for applications where there could be a percentage of re-generative voltage present during a fault condition, i.e. fuse failure. During these conditions a monitor that includes an adjustable under voltage trip level is necessary which allows this type of fault to be detected. It is therefore recommended that the Mxprt or Mxprt-4w phase monitors be considered. 4kV1 (1.2 / 50S) IEC 60664 8VA max. Trip level: Voltage range: 77 - 143V AC 161 - 300V AC 280 - 520V AC Under fixed 2%: 77V 161V 280V Hysteresis: Repeat accuracy: Immunity from micro power cuts: Response time: Time delay (t): * CONNECTION DIAGRAM L1 Local Fuse Board Green LED On Flashing On Relay De-energised De-energised De-energised 2% of trip level (factory set) 0.5% @ constant conditions <50 mS 50 mS 100 mS Note: actual delay (t) = delay + response time 150 mS (worst case = tr x 2) 1sec. (worst case = Td x 2) Ambient temp: Relative humidity: -20 to +60C +95% Output (15, 16, 18): Output rating: SPDT relay AC1 250V 8A (2000VA) AC15 250V 5A (no), 3A (nc) DC1 25V 8A (200W) 150,000 ops at rated load 2kV AC (rms) IEC 60947-1 Electrical life: Dielectric voltage: Rated impulse withstand voltage: Housing: Weight: Mounting option: Terminal conductor size: Red LED Off Off Off *Please state Supply / monitoring voltage when ordering Delay from phase loss (tr): Power on delay (Td): Troubleshooting. The table below shows the status of the unit during a fault condition. 77- 143V AC 161 - 300V AC 280 - 520V AC1 48 - 63Hz Over voltage cat. III Frequency range: Isolation: Rated impulse withstand voltage: Power consumption: Note: Supply fault Phase missing Phases reversed (no delay) Phase below 70% of Un (fixed under trip level [2]) Terminal Protection to IP20 * TECHNICAL SPECIFICATION Monitored 3~ Supply Td Dims: to DIN 43880 W. 17.5mm Approvals: 4kV (1.2 / 50S) IEC 60664 Orange flame retardant UL94 VO 70g On to 35mm symmetric DIN rail to BS5584:1978 (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 of the unit. 2 x 2.5mm2 solid or stranded Conforms to IEC. CE and and RoHS Compliant. EMC: Immunity: EN/IEC 61000-6-2 (EN/IEC 61000-4-3 15V/m 80MHz - 2.7GHz) Emissions: EN/IEC 61000-6-4 * SETTINGS X L2 L3 1. Power supply status (Green) LED. 2. Relay output (Red) LED. * MOUNTING DETAILS 89 (excl. clips) 45 Supply / Monitored Voltage Insert screwdriver to release clips Contactor L1 L2 L3 49 59 15 16 18 Phase monitor Y Withdraw clips fully when surface mounting 93 (+/- 1mm) 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 user's own risk. MXPRF-2-A