Description
Main
Range TeSys
product name TeSys LRF
Device short name LR9F
Product or component type Electronic thermal overload relay
Relay application Motor protection
Product compatibility LC1F225…LC1F500
network type AC
Thermal overload class Class 10 conforming to IEC 60947-4
Thermal protection adjustment
range
200…330 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 M10
Tightening torque Control circuit: 1.2 N.m on screw clamp terminals
Power circuit: 35 N.m on screw clamp terminals
Height 136.8 mm
Width 150 mm
Depth 127.6 mm
Net weight 2.32 kg
Environment
Standards VDE 0660
IEC 60947-4-1
EN 60947-4-1
IEC 60255-17
IEC 60255-8
Product certifications UL
CSA
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
