TeSys LRF - electronic thermal overload relay - 300...500 A - class 20
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TeSys LRF - electronic thermal overload relay - 300...500 A - class 20
Excl. Tax
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Description
TeSys LR9F electronic overload relay, thermal setting range 300-500A, class 20, for protection of motors 200-250kW@400V. to be mounted directly below a TeSys F 3-pole contactor LC1 F225, F265, F330, F400, F500, use of a support mounting plate LA7F902 is mandatory (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 |
|---|---|
| [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 | 127.6 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 | 136.8 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 | 2.32 kg |
| Network Frequency | 50/60 Hz |
| Network Type | AC |
| Product Certifications | UL |
| Product Compatibility | LC1F225...LC1F500 |
| Product Name | TeSys LRF |
| Product or Component Type | electronic thermal overload relay |
| Range | TeSys |
| Standards | VDE 0660 |
| Tightening Torque | control circuit: 1.2 N.m on screw clamp terminals |
| Width | 150 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 |
| Signalling Function | pre-alarm indicator |
| 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 | 300-500 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 |