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THERMAL OVERLOAD RELAY front

THERMAL OVERLOAD RELAY

TeSys LR9F electronic overload relay, thermal setting range 48-80A, class 10, for protection of motors 30-37kW@400V. to be mounted directly below a TeSys F 3-pole contactor LC1 F115, F150, F185, use of a support mounting plate LA7F901 is recommended (to be ordered separately). Motor protection includes thermal overload of 1-phase and 3-phase motors, phase failure, phase unbalance, prolonged starting times, stalled rotor conditions. On the front of the relay, it provides a thermal adjustement dial, buttons for test, stop & reset, a trip indicator, trip auxiliary contacts 1NO+1NC. Multi standards certified (IEC, UL, CSA, CCC, Marine), Green Premium compliant (RoHs/Reach).
SKU: LR9F5363

  • Product Info

    Range TeSys
    Product name TeSys LRF
    Device short name LR9F
    Product or component type Electronic thermal overload relay
    relay application Motor protection
    Product compatibility LC1F115...LC1F185
    Network type AC
    Thermal overload class Class 10 conforming to IEC 60947-4
    Thermal protection adjustment range 48…80 A
    Complementary
    Network frequency 50/60 Hz
    Mounting support Direct on contactor
    Plate
    Tripping threshold 1.12 +/- 0.06 In tripping conforming to IEC 60947-4-1
    Surge withstand 4 kV conforming to IEC 61000-4-5
    Contacts type and composition 1 NO + 1 NC
    [Ith] conventional free air thermal current 5 A for control circuit
    [Ue] rated operational voltage 1000 V AC 50/60 Hz for power circuit conforming to VDE 0110 group C
    [Ui] rated insulation voltage Power circuit: 1000 V AC conforming to IEC 60947-4
    [Uimp] rated impulse withstand voltage 8 kV conforming to IEC 60947-1
    Phase failure sensitivity Tripping in 4 s +/- 20 % conforming to IEC 60947-4-1
    Reset Manual reset on front relay
    Control type Dial white full-load current adjustment
    Test button red
    Push-button red reset
    Push-button stop
    local signalling Trip indicator
    Temperature compensation -20…70 °C
    Current consumption <= 5 mA no-load
    switching capacity for alarm 0...150 mA
    Maximum voltage drop <2.5 V closed state
    Connections - terminals Control circuit: screw clamp terminals 1 cable 0.75…2.5 mm² - cable stiffness: flexible - with cable end
    Control circuit: screw clamp terminals 1 cable 0.75…2.5 mm² - cable stiffness: solid
    Control circuit: screw clamp terminals 1 cable 0.75…4 mm² - cable stiffness: flexible - without cable end
    Control circuit: screw clamp terminals 2 cable 1…1.5 mm² - cable stiffness: flexible - with cable end
    Control circuit: screw clamp terminals 2 cable 1…2.5 mm² - cable stiffness: flexible - without cable end
    Control circuit: screw clamp terminals 2 cable 1 mm² - cable stiffness: solid
    Power circuit: lugs-ring terminals M8
    Tightening torque Control circuit: 1.2 N.m on screw clamp terminals
    Power circuit: 18 N.m on screw clamp terminals
    height 96 mm
    Width 115 mm
    Depth 123.5 mm
    Net weight 0.9 kg
    Environment
    Standards IEC 60255-17
    IEC 60255-8
    VDE 0660
    EN 60947-4-1
    IEC 60947-4-1
    product certifications CSA
    UL
    UKCA
    Protective treatment TH
    IP degree of protection IP20 conforming to IEC 60529
    IP20 conforming to VDE 0106
    Ambient air temperature for operation -20…55 °C conforming to IEC 60255-8
    Ambient air temperature for storage -40…85 °C
    Operating altitude <= 2000 m without derating
    Fire resistance 850 °C conforming to IEC 60695-2-1
    Mechanical robustness Shocks: 13 Gn for 11 ms conforming to IEC 60068-2-7
    Vibrations 5...300 Hz: 2 GN conforming to IEC 60068-2-6
    Dielectric strength 6 kV 50 Hz conforming to IEC 255-5
    Electromagnetic compatibility Resistance to electrostatic discharge: 6 kV in indirect mode conforming to IEC 61000-4-2
    Resistance to electrostatic discharge: 8 kV in air conforming to IEC 61000-4-2
    Radiated radio-frequency electromagnetic field immunity test: 10 V/m conforming to IEC 61000-4-3
    Fast transients immunity test: 2 kV conforming to IEC 61000-4-4
    Packing Units
    Unit Type of Package 1 PCE
    Number of Units in Package 1 1
    Package 1 Height 13.0 cm
    Package 1 Width 15.3 cm
    Package 1 Length 15.8 cm
    Package 1 Weight 878.0 g
    Unit Type of Package 2 S04
    Number of Units in Package 2 12
    Package 2 Height 30.0 cm
    Package 2 Width 40.0 cm
    Package 2 Length 60.0 cm
    Package 2 Weight 11.214 kg

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