Schneider Electric TeSys LRD Thermal Overload Relays 17-24A Class 20 LRD22L
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Brand : Schneider Electric
Type : Thermal Overload Relay
Description
Schneider Electric LRD22L TeSys D Thermal Overload Relay protects 9-11 kW motors at 400 V thanks to a thermal range of 16-24 A, trip class 20, and phase imbalance protection. LRD22L is a Schneider Electric TeSys LRD thermal overload relay for direct mounting on TeSys D contactors. With a thermal setting range of 16-24 A, trip class 20, and phase imbalance detection, it protects motors from 11 kW to 400 V.
It has manual reset and test buttons, automatic reset, auxiliary trip contact, and flag indicator. It is available worldwide, certified to multiple standards (IEC, UL, CSA, CCC, EAC, Marine) and Green Premium compliant (RoHs/Reach). Thermal overload protection relay, bimetallic type, with phase imbalance protection (differential). Mounts directly to the lower terminals of a Tesys LC1D25-D38 contactor to form a compact starter.
Light and compact, 45 mm wide. Temperature-compensated for good protection precision. Manual control with test and reset buttons, manual/auto reset selector switch. Trip signaling with 1 NO + 1 NC auxiliary contacts and trip display. Can be completed with terminal blocks for free-standing mounting (LAD7B, LAD96) and remote control devices (LAD703, LA7D03).
Features
- 17-24A Th Overload Relay
- Tesys Deca thermal overload relays are designed to protect a.c. circuits and motors against overloads.
- New modern look & feel of all machines
- Easier to install and operate with multi-standard screws
- Digital customer experience for technical documents
- Maintenance guide via EcoStruxureTM Facility Expect
| Brand | Schneider Electric |
| Item Name | Thermal Overload Relay |
| Model | LRD22L |
| Conventional Free Air Thermal Current | 5 A for signalling circuit |
| Rated Operational Voltage Limits | 690 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1 |
| 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 |
| Rated Impulse Withstand Voltage | 6 kV |
| Ambient Air Temperature For Operation | -20-60 °C without derating conforming to IEC 60947-4-1 |
| Ambient Air Temperature For Storage | -60-70 °C |
| Associated Fuse Rating | 4 A gG for signalling circuit, 4 A BS for signalling circuit |
| Auxiliary Contact Composition | 1 NO + 1 NC |
| Climatic Withstand | Conforming to IACS E10 |
| Compatibility Code | LRD |
| Connections - Terminals | Control circuit: screw clamp terminals 2 cable(s) 1-2.5 mm² flexible without cable end, control circuit: screw clamp terminals 2 cable(s) 1-2.5 mm² flexible with cable end, control circuit: screw clamp terminals 2 cable(s) 1-2.5 mm² solid without cable end, power circuit: screw clamp terminals 1 cable(s) 1.5-10 mm² flexible without cable end, power circuit: screw clamp terminals 1 cable(s) 1-6 mm² flexible with cable end, power circuit: screw clamp terminals 1 cable(s) 1.5-10 mm² solid without cable end |
| Control Type | Red Push-button: stop, blue push-button: reset |
| Depth | 70 mm |
| Dielectric Strength | 1.89 kV at 50 Hz conforming to IEC 60947-1 |
| Height | 66 mm |
| IP Degree Of Protection | IP20 Conforming to IEC 60529 |
| Mechanical Robustness | Shocks: 15 Gn for 11 ms conforming to IEC 60068-2-7, vibrations: 3 GN conforming to IEC 60068-2-6 |
| Mounting Support | Plate, with specific accessories, rail, with specific accessories, under contactor |
| Network Frequency | 0...400 Hz |
| Network Type | DC, AC |
| Permissible Current | 3 A at 120 V AC-15 for signalling circuit, 0.22 A at 125 V DC-13 for signalling circuit |
| Phase Failure Sensitivity | Tripping Current 130 % of Ir on two phase, the last one at 0 |
| Certifications | IEC, UL, CSA, EAC, ABS, ATEX INERIS, UKCA |
| Compatibility | LC1D38, LC1D25, LC1D32 |
| Range | TeSys, TeSys Deca |
| Rated Operational Voltage Limits | 690 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1 |
| Relay Application | Motor Protection |
| 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, EN 50495 |
| Tightening Torque | Control circuit: 1.7 N.m - on screw clamp terminals, power circuit: 2.5 N.m - on screw clamp terminals |
| Width | 45 mm |
| Temperature Compensation | -20-60 °C |
| Thermal Overload Class | Class 20 conforming to IEC 60947-4-1 |
| Thermal Protection Adjustment Range | 17-24 A |
| Tripping Threshold | 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1 |
| Weight | 0.144Kg |
