TeSys LRF - electronic thermal overload relay - 90...150 A - class 20
Description
TeSys LR9F electronic overload relay, thermal setting range 90-150A, class 20, for protection of motors 55-75kW@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).
Product Details
[ue] Rated Operational Voltage | 1000 V AC 50/60 Hz for power circuit conforming to VDE 0110 group C |
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[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 |
Ambient Air Temperature for Operation | -20-55 °C conforming to IEC 60255-8 |
Ambient Air Temperature for Storage | -40-85 °C |
Compatibility Code | LR9F |
Contacts Type and Composition | 1 NO + 1 NC |
Control Type | dial white full-load current adjustment |
Depth | 123.5 mm |
Device Short Name | LR9F |
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 |
Fire Resistance | 850 °C conforming to IEC 60695-2-1 |
Height | 96 mm |
Ip Degree of Protection | IP20 conforming to IEC 60529 |
Mechanical Robustness | shocks: 13 Gn for 11 ms conforming to IEC 60068-2-7 |
Mounting Support | direct on contactor |
Net Weight | 0.885 kg |
Network Frequency | 50/60 Hz |
Network Type | AC |
Product Certifications | CSA |
Product Compatibility | LC1F115...LC1F185 |
Product Name | TeSys LRF |
Product or Component Type | electronic thermal overload relay |
Range | TeSys |
Standards | IEC 60255-17 |
Tightening Torque | control circuit: 1.2 N.m on screw clamp terminals |
Width | 115 mm |
Connections - Terminals | control circuit: screw clamp terminals 1 cable 0.75-2.5 mm² - cable stiffness: flexible - with cable end |
[ith] Conventional Free Air Thermal Current | 5 A for control circuit |
Current Consumption | <= 5 mA no-load |
Local Signalling | trip indicator |
Maximum Voltage Drop | <2.5 V closed state |
Operating Altitude | <= 2000 m without derating |
Phase Failure Sensitivity | tripping in 4 s +/- 20 % conforming to IEC 60947-4-1 |
Protective Treatment | TH |
Relay Application | motor protection |
Reset | manual reset on front relay |
Surge Withstand | 4 kV conforming to IEC 61000-4-5 |
Switching Capacity in Ma | 0...150 mA |
Temperature Compensation | -20-70 °C |
Thermal Overload Class | class 20 conforming to IEC 60947-4 |
Thermal Protection Adjustment Range | 90-150 A |
Tripping Threshold | 1.12 +/- 0.06 In tripping conforming to IEC 60947-4-1 |
Rated Power in w | 100 VA at 24 V AC |