
TeSys LR9F electronic overload relay, thermal setting range 90-150A, class 10, 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 adjustment 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).
Main
| Characteristic | Value(s) |
|---|---|
| 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 IEC 60947-4 |
| Thermal protection adjustment range | 90â¦150 A |
Complementary
| Characteristic | Value(s) |
|---|---|
| Network Frequency | 50/60 Hz |
| Mounting support | Direct on contactor Plate |
| Tripping threshold | 1.12 +/- 0.06 In tripping IEC 60947-4-1 |
| Surge withstand | 4 kV IEC 61000-4-5 |
| Contacts type and composition | 1 NO + 1 NC |
| [Ith] conventional free air thermal current | 5 A control circuit |
| [Ue] rated operational voltage | 1000 V AC 50/60 Hz power circuit VDE 0110 group C |
| [Ui] rated insulation voltage | Power circuit 1000 V AC IEC 60947-4 |
| [Uimp] rated impulse withstand voltage | 8 kV IEC 60947-1 |
| Phase failure sensitivity | Tripping in 4 s +/- 20 % 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 | -4â¦158 °F (-20â¦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 0.001â¦0.004 in² (0.75â¦2.5 mm²) flexible - with cable end Control circuit screw clamp terminals 1 0.001â¦0.004 in² (0.75â¦2.5 mm²) solid Control circuit screw clamp terminals 1 0.001â¦0.006 in² (0.75â¦4 mm²) flexible - without cable end Control circuit screw clamp terminals 2 0.002â¦0.002 in² (1â¦1.5 mm²) flexible - with cable end Control circuit screw clamp terminals 2 0.002â¦0.004 in² (1â¦2.5 mm²) flexible - without cable end Control circuit screw clamp terminals 2 0.002 in² (1 mm²) solid Power circuit lugs-ring terminals M8 |
| Tightening torque | Control circuit 1.2 N.m screw clamp terminals Power circuit 18 N.m screw clamp terminals |
| Height | 3.8 in (96 mm) |
| Width | 4.5 in (115 mm) |
| Depth | 4.9 in (123.5 mm) |
| Product Weight | 1.951 lb(US) (0.885 kg) |
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