Schneider Electric LRD3321
MPNLRD3321
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LRD3321 - THERMAL OVERLOAD RELAY by SCHNEIDER ELECTRIC
$146.98Ref. price · indicative, final on quote
StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
How we verify every order →Specifications
| Parameter | Value |
|---|---|
| Control type | Red push-button: stop Blue push-button: reset |
| Network type | DC |
| Product or component type | Differential thermal overload relay |
| Climatic withstand | conforming to IACS E10 |
| [Ue] rated operational voltage | 1000 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1 |
| [Uimp] rated impulse withstand voltage | 6 kV |
| Permissible current | 1.5 A at 240 V AC-15 for signalling circuit 0.1 A at 250 V DC-13 for signalling circuit |
| [Ith] conventional free air thermal current | 5 A for signalling circuit |
| Phase failure sensitivity | Tripping current 130 % of Ir on two phase, the last one at 0 |
| IP degree of protection | IP20 conforming to IEC 60529 |
| Depth | 115 mm |
| Width | 70 mm |
All specifications
| Parameter | Value |
|---|---|
| Height | 81 mm |
| 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 |
| Range | TeSys |
| Device short name | LRD |
| Relay application | Motor protection |
| Tripping threshold | 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1 |
| Dielectric strength | 2.2 kV at 50 Hz conforming to IEC 60947-1 |
| Associated fuse rating | 4 A gG for signalling circuit 4 A BS for signalling circuit |
| Thermal overload class | Class 10A conforming to IEC 60947-4-1 |
| Temperature compensation | -20...60 °C |
| Auxiliary contact composition | 1 NO + 1 NC |
| Ambient air temperature for storage | -60...70 °C |
| Thermal protection adjustment range | 12...18 A |
| Ambient air temperature for operation | -20...60 °C without derating conforming to IEC 60947-4-1 |
MPN
LRD3321