Schneider Electric
TeSys LRF - electronic thermal overload relay - 380...630 A - class 10 - LR9F7381
Out of stock
SKU
LR9F7381
Details
TeSys LR9F electronic overload relay, thermal setting range 380-630A, class 10, for protection of motors 250-355kW@400V.
to be mounted directly below a TeSys F 3-pole contactor LC1 F400, F500, F630, F800, 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).
More Information
| Attribute | Value |
|---|---|
| SKU | LR9F7381 |
| product certifications | CSA, UL |
| ambient air temperature for storage | -40-85 °C |
| ambient air temperature for operation | -20-55 °C conforming to IEC 60255-8 |
| reset | manual reset |
| rated power in W | 100 VA at 24 V AC, 600 VA at 380 V AC, 600 VA at 600 V AC, 100 W at 24 V DC, 100 W at 48 V DC, 200 VA at 48 V AC, 25 W at 440 V DC, 400 VA at 110 V AC, 45 W at 220 V DC, 50 W at 110 V DC, 600 VA at 220 V AC |
| product or component type | Relay Beban Lebih Termal |
| current consumption | <= 5 mA no-load |
| net weight | 4.16 kg |
| standards | EN 60947-4-1, IEC 60947-4-1, VDE 0660, IEC 60255-17, IEC 60255-8 |
| device short name | LR9F |
| range | TeSys LRF |
| product compatibility | LC1F800, LC1F400...LC1F630 |
| product name | TeSys LRF |
| 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 |
| [Ith] conventional free air thermal current | 5 A for control circuit |
| 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 |
| signalling function | pre-alarm indicator |
| relay application | motor protection |
| tripping threshold | 1.12 +/- 0.06 In tripping conforming to IEC 60947-4-1 |
| network frequency | 50/60 Hz |
| 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 1-1 mm² - cable stiffness: solid, power circuit: lugs-ring terminals M12 |
| height | 228.8 mm |
| mounting support | plate, direct on contactor |
| compatibility code | LR9F |
| width | 193 mm |
| depth | 127.6 mm |
| operating altitude | <= 2000 m without derating |
| dielectric strength | 6 kV 50 Hz conforming to IEC 255-5 |
| IP degree of protection | IP20 conforming to IEC 60529 |
| network type | AC |
| tightening torque | control circuit: 1.2 N.m on screw clamp terminals, power circuit: 58 N.m on screw clamp terminals |
| control type | dial white full-load current adjustment, test button red, push-button red reset, push-button stop |
| [Ue] rated operational voltage | 1000 V AC 50/60 Hz for power circuit conforming to VDE 0110 group C |
| local signalling | trip indicator |
| [Ui] rated insulation voltage | power circuit: 1000 V AC conforming to IEC 60947-4 |
| protective treatment | TH |
| fire resistance | 850 °C conforming to IEC 60695-2-1 |
| contacts type and composition | 1 NO + 1 NC |
| thermal protection adjustment range | 380-630 A |
| supply voltage limits | 17-32 V |
| surge withstand | 4 kV conforming to IEC 61000-4-5 |
| phase failure sensitivity | tripping in 4 s +/- 20 % conforming to IEC 60947-4-1 |
| thermal overload class | class 10 conforming to IEC 60947-4 |
| switching capacity in mA | 0...150 mA |
| maximum voltage drop | <2.5 V closed state |
| temperature compensation | -20-70 °C |
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