Schneider LRD3361: TeSys Deca thermal overload relay, setting range 55 … 70 A, trip Class 10A, compatible with LC1D95 and other LC1D contactors listed below.
Set the dial to the full-load current on the motor nameplate. The NC contact (95-96) goes in series with the contactor coil and the NO contact (97-98) can signal the trip to a lamp or PLC input.
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Technical data
| Schneider reference | LRD3361 |
|---|---|
| Product or component type | Differential thermal overload relay |
| Relay application | Motor protection |
| Product compatibility | LC1D95; LC1D80 |
| Network type | DC; AC |
| Thermal overload class | Class 10A conforming to IEC 60947-4-1 |
| Thermal protection adjustment range | 55 … 70 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 |
| 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 | 0.72 A at 500 V AC-15 for signalling circuit; 0.06 A at 440 V DC-13 for signalling circuit |
| [Ue] rated operational voltage | 1000 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 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 |
| Connections – terminals | Power circuit: screw clamp terminals 1 cable(s) 4 … 35 mm² flexible without cable end |
| Condition | New, original Schneider Electric |
At a glance
- Thermal overload relays
- TeSys Deca
- 55…70 A
- class 10A
Typical applications
- Star-delta starters (set to 0.58 x motor current)
- Replacement of a drifted or damaged LRD relay
- Pumps, fans and conveyors
- Protection of motors with rated current 55 … 70 A
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?
55 … 70 A, set on the front dial.
Which contactors does it fit?
Per Schneider: LC1D95, LC1D80.
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.
Ordering tips
Send us the full order number from the label of the old part, or a clear photo of the label, together with the quantity you need. We check the number against the current manufacturer data before we quote and tell you if there is a newer replacement.
RendatSP ships from Yiwu, China, to factories worldwide; air delivery usually takes 5 to 7 days once the part is ready. The part is new and original with a 1-year warranty (shipping, payment and warranty). For a quotation, message us on WhatsApp with the order number and quantity. We also have agents in Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.
