Easy TeSys Protect
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DIFFERENTIAL THERMAL OVERLOAD RELAY
Easy TeSys differential thermal overload relay 17...25 A - class 10A
SKU LRE322Schneider Electric LRE322 is a differential thermal overload relay in the Easy TeSys Protect range. Key specifications include current setting range: 17…25 A; thermal overload class: Class 10A conforming to IEC 60947-4-1; auxiliary contacts: 1 NO + 1 NC.
17…25 ACurrent setting range
Class 10A conforming to IEC 60947-4-1Thermal overload class
1 NO + 1 NCAuxiliary contacts
PRODUCT DATA
Technical specifications
Source: Schneider Electric product catalog.
Verified September 17, 2026.
| Product reference | LRE322 |
|---|---|
| Range | Easy TeSys |
| Range of product | Easy TeSys Protect |
| Product or component type | Differential thermal overload relay |
| Device short name | LRE |
| Relay application | Motor protection |
| Phase failure sensitivity | Tripping current 130 % of Ir on two phase, the last one at 0 conforming to IEC 60947-4-1 |
| Product compatibility | LC1E40...95 |
| Network type | AC |
| Network frequency | 50...60 Hz |
| Mounting support | Under contactor Plate, with specific accessories Rail, with specific accessories |
| Thermal overload class | Class 10A conforming to IEC 60947-4-1 |
| Signalling function | Relay trip indicator |
| Thermal protection adjustment range | 17…25 A |
| Tripping threshold | 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1 |
| Mechanical robustness | Shocks: 6 Gn for 11 ms conforming to IEC 60068-2-7 Vibrations: 3 GN conforming to IEC 60068-2-6 |
| 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 |
| Associated fuse rating | 50 A gG for power circuit 25 A aM for power circuit 5 A gG for signalling circuit |
| [Ui] rated insulation voltage | 690 V conforming to IEC 60947-4-1 |
| [Uimp] rated impulse withstand voltage | 6 kV |
| Local signalling | Trip indicator |
| Control type | Push-button red stop: Push-button green reset: |
| Temperature compensation | -20…60 °C |
| Connections - terminals | Signalling circuit: screw clamp terminals 2 1…2.5 mm² - cable stiffness: flexible without cable end Signalling circuit: screw clamp terminals 2 1…2.5 mm² - cable stiffness: flexible with cable end Signalling circuit: screw clamp terminals 2 1…2.5 mm² - cable stiffness: solid without cable end Power circuit: screw clamp terminals 1 4…35 mm² - cable stiffness: flexible without cable end Power circuit: screw clamp terminals 1 4…35 mm² - cable stiffness: flexible with cable end Power circuit: screw clamp terminals 1 4…35 mm² - cable stiffness: solid without cable end |
| Recommended tightening torque | Power circuit: 9 N.m - on screw clamp terminals Signalling circuit: 1.7 N.m - on screw clamp terminals |
| Height | 54 mm |
| Width | 70 mm |
| Depth | 113 mm |
| Net weight | 0.47 kg |
| Standards | EN/IEC 60947-1 EN/IEC 60947-4-1 EN/IEC 60947-5-1 GB/T 14048.1 GB/T 14048.4 GB/T 14048.5 EN/IEC 60335-1:Clause 30.2 EN/IEC 60335-2-40:Annex JJ |
| Product certifications | CB Scheme CCC CE EAC |
| Protective treatment | TH conforming to IEC 60068 |
| 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 -20…70 °C with derating |
| Ambient air temperature for storage | -60…80 °C |
| Fire resistance | 850 °C conforming to IEC 60068-2-1 |
| Dielectric strength | 6 kV at 50 Hz conforming to IEC 60255-5 |
| Electromagnetic compatibility | Surge withstand: 6 kV conforming to IEC 60801-5 |
For complete electrical ratings, applicable standards, connection requirements and installation instructions, consult the official Schneider Electric reference ↗.