Description
Main
Range TeSys
product name TeSys LRG
Product or component type Electronic thermal overload relay
Device short name LR9G
Relay application Motor protection
network type AC
Thermal overload class Class 5E…30E conforming to IEC 60947-4-1
Thermal protection adjustment
range
125…500 A
Complementary
Network frequency 30…60 Hz
100 Hz
overvoltage category III
Tripping threshold 1.125 +/- 0.07 In conforming to IEC 60947-4-1
Protection type Ground fault protection – tripping time adjustment: 0…1 s – for alarm circuit
conforming to IEC 60947-4-1
Ground fault protection – tripping time adjustment: 0…1 s – for alarm circuit
conforming to UL 60947-4-1
Phase loss – tripping time adjustment: 0…4 s – for alarm circuit
Phase imbalance – tripping time adjustment: 0…5 s – for alarm circuit conforming to
IEC 60947-4-1
Phase imbalance – tripping time adjustment: 0…5 s – for alarm circuit conforming to
UL 60947-4-1
Local signalling LED
Trip indicator
Contacts type and composition 1 NO + 1 NC
[Ith] conventional free air thermal
current
5 A
[Uc] control circuit voltage 24…500 V AC 50/60 Hz
24…250 V DC
[Ue] rated operational voltage 1000 V AC 50/60 Hz
[Uimp] rated impulse withstand
voltage
8 kV
Reset Automatic reset
Manual
Mechanical durability 7000 cycles
Surge withstand 4 kV
Electromagnetic compatibility EMC immunity conforming to IEC 60947-4-1
Emission tests criteria A conforming to IEC 60947-4-1
Immunity to radiated radio-electrical interference – test level: 20 V/m conforming to
EN/IEC 61000-4-3
Voltage dips and interruptions immunity test conforming to SEMI F47
Connections – terminals Power circuit: bar – busbar cross section: 32 x 10 mm
Power circuit: lugs-ring terminals 1 240 mm²
Control circuit: push-in 1 0.2…2.5 mm² – cable stiffness: solid stranded without cable
end
Control circuit: push-in 1 0.25…2.5 mm² – cable stiffness: flexible with cable end
Control circuit: push-in 2 0.5…1.0 mm² with cable end
Tightening torque 35 N.m
Mounting support Direct on contactor
Plate
Standards EN/IEC 60947-4-1
EN/IEC 60947-5-1
UL 60947-4-1
CSA C22.2 No 60947-4-1
JIS C8201-4-1
JIS C8201-5-1
IEC 60335-1:Clause 30.2
IEC 60335-2-40:Annex JJ
UL 60335-2-40:Annex JJ
UL 60335-1
Product certifications CB Scheme
CCC
cULus
UKCA
ATEX
EU-RO-MR by DNV-GL
EAC
Environment
IP degree of protection IP2X front face with shrouds conforming to IEC 60529
IP2X front face with shrouds conforming to VDE 0106
Protective treatment TH
Ambient air temperature for
operation
-25…60 °C
Ambient air temperature for
storage
-60…80 °C
Permissible ambient air
temperature around the device
-40…60 °C at Uc
Adjustment of dial setting -25…60 °C
Mechanical robustness Vibrations 5…300 Hz 6 gn contactor open
Shocks 15 gn 11 ms contactor closed
Height 114 mm
Width 140 mm
Depth 140 mm
Net weight 1.3 kg
Colour Dark grey
