Schneider TeSys LR9 Electronic Thermal Overload Relays LR9F Motor Strater Relay
Applications
Electronics harnessed for motor starters. These ingenious electronic overload relays offer a wide current adjustment range and a high level of accuracy due to thermal modeling suitable for even the most demanding applications. They can be directly mounted to TeSys D and F contactors to form extremely compact motor starters.
Datasheet For Reference
| Characteristics | |
| Main | |
| Range of product | TeSys F | 
| Device short name | LR9F | 
| Product or component type | Electronic thermal overload relay | 
| Relay application | Motor | 
| Product compatibility | LC1F115...LC1F185 | 
| Network type | DC | 
| Overload tripping class | Class 10 | 
| Signalling function | Alarm | 
| Thermal protection adjustment range | 30...50 A | 
| Protection type | GG fuse 80 A - for power circuit | 
| GG fuse 5 A - for control circuit | |
| GB2 circuit breaker 5 A - for control circuit | |
| BS fuse 5 A - for control circuit | |
| AM fuses 50 A - for power circuit | |
| Quantity per set | Set of 10 | 
| Complementary | |
| Network frequency | 50/60 Hz | 
| [Us] rated supply voltage | 24 V DC | 
| Supply voltage limits | 17...32 V | 
| Mounting support | Rail | 
| Direct on contactor | |
| Tripping threshold | 1.12 +/- 0.06 In tripping conforming to IEC 60947-4-1 | 
| 1.05 +/- 0.06 In alarm conforming to IEC 60947-4-1 | |
| Surge withstand | 4 kV conforming to IEC 61000-4-5 | 
| [Ith] conventional free air thermal current | 5 A for control circuit | 
| Maximum power | 600 VA at 600 V AC | 
| 600 VA at 380 V AC | |
| 600 VA at 220 V AC | |
| 50 W at 110 V DC | |
| 45 W at 220 V DC | |
| 400 VA at 110 V AC | |
| 25 W at 440 V DC | |
| 200 VA at 48 V AC | |
| 100 W at 48 V DC | |
| 100 W at 24 V DC | |
| 100 VA at 24 V AC | |
| [Ue] rated operational voltage | 1000 V AC 50/60 Hz for power circuit conforming to VDE 0110 group C | 
| [Ui] rated insulation voltage | 1000 V AC power circuit conforming to IEC 60947-4 | 
| [Uimp] rated impulse withstand voltage | 8 kV conforming to IEC 60947-1 | 
| Phase failure sensitivity | Tripping in 4 s +/- 20 % conforming to IEC 60947-4-1 | 
| Reset | Manual reset on front relay | 
| Temperature compensation | -20...70 °C | 
| Current consumption | <= 5 mA no-load | 
| Switching capacity in mA | 0...150 mA | 
| Output overload protection | Auto-protected | 
| Output short-circuit protection | Auto-protected | 
| Voltage drop | <= 2.5 V closed state | 
