Schneider LRD325: TeSys Deca thermal overload relay, setting range 17 … 25 A, trip Class 10A, compatible with LC1D40A and other LC1D contactors listed below.
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.
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Technical data
| Schneider reference | LRD325 |
|---|---|
| Product or component type | Differential thermal overload relay |
| Relay application | Motor protection |
| Product compatibility | LC1D40A; LC1D65A; LC1D50A |
| Network type | DC; AC |
| Thermal overload class | Class 10A conforming to IEC 60947-4-1 |
| Thermal protection adjustment range | 17 … 25 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 | 0.95 A at 380 V AC-15 for signalling circuit; 0.06 A at 440 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: 5 N.m – on EverLink BTR screw connectors |
| Dimensions (W x H x D) | 55 x 70 x 123 mm |
| Condition | New, original Schneider Electric |
At a glance
- Thermal overload relay
- TeSys Deca
- 690VAC
- 17 to 25A
- 1NO+1NC
- class 10A
- EverLink BTR screw
Typical applications
- Pumps, fans and conveyors
- Protection of motors with rated current 17 … 25 A
- Motor starters with TeSys Deca LC1D contactors
- Star-delta starters (set to 0.58 x motor current)
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
What does class 10A mean?
It is the trip class per IEC 60947-4-1: at 7.2 times the setting current the relay trips within 2 to 10 seconds, which suits standard motors with normal starting times.
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?
17 … 25 A, set on the front dial.
Which contactors does it fit?
Per Schneider: LC1D40A, LC1D65A, LC1D50A.
Can I get a price and delivery time?
Prices are quoted on request. Send the order number, quantity and delivery country on WhatsApp and we will reply with price and delivery time; air shipping is usually 5 to 7 days once ready, with a 1-year warranty.
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.
