LRD3363-80a
Schneider Differential Thermal Overload Relay LRD3363
Schneider Electric
Schneider Differential Thermal Overload Relay LRD3363
['Home', 'Schneider Electric', 'TeSys Overload Relays', 'LRD3363'] Need Schneider LRD3363? Differential Thermal Overloa…
Specifications
| Brand | Schneider Electric |
|---|---|
| Model Number | LRD3363 |
| Official Product Name | TeSys Deca Thermal Overload Relay 63 to 80 A Class 10A |
| Applicable System | Motor protection in TeSys D starter combinations |
| Product Type | Differential Thermal Overload Relay |
| Equivalent Standard | IEC 60947-4-1, UL 508, CSA |
| Product Status | Active |
| Thermal overload class | Class 10A (IEC 60947-4-1) |
| Compatible contactors | LC1D80, LC1D95 (TeSys D) |
| Rated insulation voltage (Ui) | 1000 V (IEC), 600 V (UL/CSA) |
| Rated operational voltage (Ue) | 690 V AC, 0 to 400 Hz |
| Auxiliary contacts | 1 NO + 1 NC |
| Dimensions (H x W x D) | 123 x 75 x 121 mm |
| Weight | 0.51 kg |
| Protection degree | IP20 / IP2x |
| Operating temperature | -20 to +60 deg C |
| Thermal protection adjustment range | 63 to 80 A |
Product Description
Designed to pair with LC1D80 and LC1D95 TeSys D contactors, it protects motors against overload and phase failure, with phase-failure and load-unbalance detection, a sealed transparent cover, and multi-standard certification (IEC, UL, CSA, CCC, ATEX, Marine). The Schneider Electric LRD3363 is a TeSys Deca differential thermal overload relay with an adjustable tripping range of 63 to 80 A and Class 10A protection.
Basic Product Information
- Phase-failure and load-unbalance detection for reliable motor protection
- Manual stop (red) and reset (blue) push-buttons with sealable transparent cover
- Multi-standard certified (IEC, UL, CSA, CCC, EAC, ATEX, Marine) for worldwide use
- Adjustable thermal protection range 63 to 80 A with Class 10A tripping
Technical Specifications
Version & Model Difference
['The LRD3363 is the 63 to 80 A Class 10A differential version for LC1D80/LC1D95; the TeSys LRD range spans lower and higher current frames (e.g. LRD32 at 23 to 32 A) with matching contactor pairings.']
Application Scenarios
- Motor protection in industrial motor starters and control panels
- Hazardous-area (ATEX) installations requiring certified overload protection
- Commercial and infrastructure buildings on 690 V AC networks
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Frequently Asked Questions
Which contactors pair with the LRD3363?
It is designed for use with TeSys D contactors LC1D80 and LC1D95, forming a motor starter.
What is the adjustment range and class?
It is adjustable from 63 to 80 A with Class 10A tripping per IEC 60947-4-1.
Does it detect phase failure?
Yes. It provides phase-failure and load-unbalance detection, tripping at 130% of Ir on two phases.
What is the warranty on the LRD3363?
Schneider Electric provides an 18-month contractual warranty; contact us for terms.
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