For motors with a rated current between 0.63 … 1 A, the Schneider LRD05 is the matching TeSys LRD thermal overload relay, Class 10A, with 1 NO + 1 NC auxiliary contacts.
Class 10A means the relay trips within 2 to 10 seconds at 7.2 times the setting current, which suits standard motors with normal starting times.
See our Schneider Electric range.
Technical data
| Schneider reference | LRD05 |
|---|---|
| Product or component type | Differential thermal overload relay |
| Relay application | Motor protection |
| Product compatibility | LC1D25; LC1D38; LC1D12; LC1D32; LC1D18; LC1D09 |
| Network type | AC; DC |
| Thermal overload class | Class 10A conforming to IEC 60947-4-1 |
| Thermal protection adjustment range | 0.63 … 1 A |
| [Ui] rated insulation voltage | Power circuit: 600 V conforming to CSA; Power circuit: 600 V conforming to UL; Power circuit: 690 V conforming to IEC 60947-4-1 |
| Network frequency | 0…400 Hz |
| Mounting support | Plate, with specific accessories; Rail, with specific accessories; Under contactor |
| Tripping threshold | 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1 |
| Auxiliary contact composition | 1 NO + 1 NC |
| [Ith] conventional free air thermal current | 5 A for signalling circuit |
| Permissible current | 3 A at 120 V AC-15 for signalling circuit; 0.22 A at 125 V DC-13 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 |
| Phase failure sensitivity | Tripping current 130 % of Ir on two phase, the last one at 0 |
| Control type | Red push-button: stop; Blue push-button: reset |
| Temperature compensation | -20 … 60 °C |
| Tightening torque | Control circuit: 1.7 N.m – on screw clamp terminals; Power circuit: 1.7 N.m – on screw clamp terminals |
| Dimensions (W x H x D) | 45 x 66 x 70 mm |
| Condition | New, original Schneider Electric |
At a glance
- Thermal overload relay
- TeSys Deca
- 690VAC
- 0.63 to 1A
- 1NO+1NC
- class 10A
- screw clamp
Typical applications
- Star-delta starters (set to 0.58 x motor current)
- Replacement of a drifted or damaged LRD relay
- Motor starters with TeSys Deca LC1D contactors
- Pumps, fans and conveyors
Compatibility and replacement
For separate mounting on a rail or plate Schneider offers a terminal block adapter (LAD7B106 for LRD01-35). If the motor current is near the top of the range, use the next range up so the setting sits mid-scale.
Frequently asked questions
How do I reset it?
Use the blue reset button; manual or automatic reset is selected on the relay.
Which contactors does it fit?
Per Schneider: LC1D25, LC1D38, LC1D12, LC1D32, LC1D18, LC1D09.
Can it be mounted separately from the contactor?
Yes, with the Schneider terminal block adapter for independent mounting on a rail or plate.
What current range does it cover?
0.63 … 1 A, set on the front dial.
Do you ship to my country, and what is the warranty?
Yes. RendatSP ships worldwide from Yiwu, China, by air in 5 to 7 days once the part is ready, and every part carries a 1-year warranty. Send the order number and quantity on WhatsApp and we will reply with a quotation.
How to order
Message us the order number and quantity. For breakdowns, tell us the delivery address and we will offer the fastest shipping option. If the exact part is discontinued, we confirm the official successor before quoting.
Need it fast? Send the order number, quantity and delivery country on WhatsApp or through the inquiry form and we reply with a quotation the same working day. All parts are new and original, covered by a 1-year warranty, and ship worldwide by air in 5 to 7 days once ready (shipping, payment and warranty). Local agents: Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.
