TeSys LR9D electronic overload relay, 100A/1000V, thermal setting range 60-100A, tripping class 10, for protection of 3-phase motors 37-45kW@400V. Differential device with phase failure and load unbalance detection. It provides a thermal adjustement dial, buttons for test, stop and reset, a flag indicator and 2 auxiliary contacts 1NO+1NC for fault signalling. Settings are protected by a transparent cover lockable by sealing. Connection by bolt terminals for bars or cables with lugs, it connects directly to the bottom terminals of 3-pole contactors LC1D115, D150. Mounting on DIN rail or screw fixing, separated from contactor, can be done without accessories. Multi-standards certified (IEC, UL, CSA, CCC, Marine), Green Premium compliant (RoHs/Reach).
 
Specifications
Main
| Range | 
TeSys | 
| Product name | 
TeSys LRD TeSys Deca | 
| Product or component type | 
Electronic thermal overload relay | 
| Device short name | 
LR9D | 
| Relay application | 
Motor protection | 
| Product compatibility | 
LC1D115 LC1D150 NSX circuit breaker | 
| Network type | 
AC | 
| Thermal overload class | 
Class 10 conforming to IEC 60947-4-1 | 
| Signalling function | 
Alarm | 
| Thermal protection adjustment range | 
60…100 A | 
| [Ui] rated insulation voltage | 
Power circuit: 1000 V conforming to IEC 60947-4-1 Power circuit: 600 V conforming to CSA Power circuit: 600 V conforming to UL | 
Complementary
| Network frequency | 
50...60 Hz | 
| [Us] rated supply voltage | 
24 V DC | 
| Supply voltage limits | 
17…32 V | 
| Mounting support | 
Under contactor Rail | 
| Tripping threshold | 
1.05 +/- 0.06 In alarm conforming to IEC 60947-4-1 1.12 +/- 0.06 In de-energisation conforming to IEC 60947-4-1 | 
| Auxiliary contact composition | 
1 NO + 1 NC | 
| [Ith] conventional free air thermal current | 
5 A for signalling circuit | 
| [Ue] rated operational voltage | 
690 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1 | 
| Associated fuse rating | 
4 A gG for signalling circuit 4 A BS for signalling circuit | 
| [Uimp] rated impulse withstand voltage | 
6 kV conforming to IEC 60947-1 | 
| Phase failure sensitivity | 
Tripping in 4 s +/- 20 % conforming to IEC 60947-4-1 | 
| Control type | 
Red push-button: stop Blue push-button: reset | 
| Temperature compensation | 
-20…60 °C | 
| Switching capacity in mA | 
0...150 mA | 
| Maximum voltage drop | 
<2.5 V closed state | 
| Connections - terminals | 
Power circuit: bars Control circuit: screw clamp terminals 1 cable(s) 0.5…1.5 mm² flexible without cable end Control circuit: screw clamp terminals 2 cable(s) 0.5…1.5 mm² flexible without cable end Alarm circuit: screw clamp terminals 1 cable(s) 0.5…1.5 mm² flexible without cable end | 
| Tightening torque | 
Alarm circuit: 0.45 N.m - on screw clamp terminals Power circuit: 18 N.m - on bars M8 Control circuit: 1.2 N.m - on screw clamp terminals | 
| Height | 
118 mm | 
| Width | 
115 mm | 
| Depth | 
125 mm | 
| Net weight | 
0.885 kg | 
Environment
| Climatic withstand | 
Conforming to IACS E10 | 
| IP degree of protection | 
IP20 conforming to IEC 60529 | 
| Ambient air temperature for operation | 
-20…60 °C without derating conforming to IEC 60947-4-1 | 
| Ambient air temperature for storage | 
-60…70 °C | 
| Operating altitude | 
<= 2000 m without derating | 
| Mechanical robustness | 
Vibrations: 2 Gn, 5...300 Hz conforming to IEC 60068-2-6 Shocks: 13 Gn for 11 ms conforming to IEC 60068-2-7 | 
| Dielectric strength | 
1.89 kV at 50 Hz conforming to IEC 60947-1 | 
| Standards | 
EN/IEC 60947-4-1 EN/IEC 60947-5-1 UL 60947-4-1 UL 60947-5-1 CSA C22.2 No 60947-4-1 CSA C22.2 No 60947-5-1 GB/T 14048.4 GB/T 14048.5 | 
| Product certifications | 
UL CSA CCC UKCA |