02/11/2015 www.crouzet.com DIN Rail Mount 17.5 mm MUS/MUSF 80 AC/DC Part number 84872151 Control relays monitoring their own power supply - MUS: Over/undervoltage control Selectable latching (memory) function - MUSF: Over/undervoltage control Adjustable time delays Control in 50Hz, 60Hz or DC True RMS measurement LED status indication Part numbers Functions Controlled ranges Type 84872151 MUS/MUSF 80 AC/DC Under/Overvoltage control in window mode 2080VAC/DC Specifications Supply Polarity with DC voltage Galvanic isolation of power supply/measurement No Immunity from micro power cuts 10 ms Inputs and measuring circuit Frequency of measured signal 0Hz, 50... 60Hz Max. measuring cycle time 250 ms/True RMS measurement Display precision 10% of full scale Repetition accuracy with constant parameters 0,5% Measuring error with voltage drift < 1% across the whole range Measuring error with temperature drift 0,05% /C Timing Delay on thresold crossing Tt 0,110sec(0,+10%) Repetition accuracy with constant parameters 0,5% Reset time 1,5 s Delay on pick-up 500 ms in AC / 1 s in DC Output Type of output 1 single pole changeover relay Type of contacts No cadmium Maximum breaking voltage 250 V AC/DC Max. breaking current 5 A AC/DC Min. breaking current 10mA / 5 V DC 5 Electrical life (number of operations) 1 x 10 Breaking capacity (resistive) 1250 VA AC Maximum rate 360 operations/hour at full load Operating categories acc. to IEC/EN 60947-5-1 AC 12, AC 13, AC 14, AC 15, DC 12, DC 13, DC 14 6 Mechanical life (operations) 30 x 10 Insulation Nominal insulation voltage IEC/EN 60664-1 250 V Insulation coordination (IEC/EN 60664-1) Overvoltage category III: degree of pollution 3 Rated impulse withstand voltage (IEC/EN 60664-1) 4 KV (1,2 / 50 s) Dielectric strength (IEC/EN 60664-1) 2 KV AC 50Hz 1 min Insulation resistance (IEC/EN 60664-1) > 500 M/ 500 V DC General characteristics Display power supply Green LED Display relay Yellow LED Casing 17,5 mm Mounting On 35 mm symmetrical DIN rail, IEC/EN 60715 Mounting position All positions Material: enclosure plastic type VO to UL94 standard Incandescent wire test according to IEC 60695-2-11 & NF EN 60695-2-11 Protection (IEC/EN 60529) Terminal block: IP 20 Casing: IP 30 2 2 2 Connecting capacity IEC/EN 60947-1 Rigid: 1 x 4 - 2 x 2.5 mm 1 x 11 AWG - 2 x 14 AWG 2 2 2 Flexible with ferrules: 1 x 2.5 - 2 x 1.5 mm Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected02/11/2015 www.crouzet.com 1 x 14 AWG - 2 x 16 AWG Max. tightening torques IEC/EN 60947-1 0,61Nm/5,38,8Lbf.In Operating temperature IEC/EN 60068-2 -20+50C Storage temperature IEC/EN 60068-2 -4070C Humidity IEC/EN 60068-2-30 2 x 24 hr cycle 95% RH max. without condensation 55C Vibrations according to IEC/EN60068-2-6 10150Hz,A=0.035mm Shocks IEC/EN 60068-2-6 5 g Standards Product standard IEC/EN 6025561 Electromagnetic compatibility (EMC) IEC/EN 61000-6-1, IEC/EN 61000-6-2, IEC/EN 61000-6-3, IEC/EN 61000-6-4 Certifications UL, CSA, GL Marking CE (LVD) 73/23/EEC - EMC 89/336/EEC Conformity with environmental directives RoHS, WEEE Supply Supply voltage Un 2448VAC/DC Operating range 15100VAC/DC AC supply voltage frequency 50 / 60Hz 10% Power consumption at Un 3.9 VA in AC/1.6 W in DC Inputs and measuring circuit Threshold adjustment 2080VAC/DC Hysteresis 520%ofthreshold(MUS) 3% (fixed) of threshold (MUSF) General characteristics Weight 80 g Accessories Description Code Removable sealable cover for 17.5 mm casing 84800000 Principles The under or overvoltage threshold value is set by a graduated potentiometer by reading the Un scale to be monitored directly. The hysteresis is set by a graduated potentiometer from 5 to 20% of the preset threshold. The hysteresis value cannot be higher than the extremes of the measurement range. In overvoltage mode, if the controlled voltage exceeds the preset threshold for longer than the time set on the front face (0.1 to 10 s), the output relay opens and LED R is extinguished. During the time delay, this LED flashes. Once the voltage falls below the threshold value minus the hysteresis, the relay closes instantaneously. In undervoltage mode, if the controlled voltage falls below the preset threshold for longer than the time set on the front face (0.1 to 10 s), the output relay opens and LED R is extinguished. During the time delay, this LED flashes. Once the voltage rises above the threshold value plus the hysteresis, the relay closes instantaneously. o Legend N Threshold Hysteresis Overvoltage function relay Unless otherwise specified, the characteristics given are applicable to all or part of the product range selected