LRD21 - Thermal Overload Relay, TeSys LRD, 12...18 A, Class 10A
Schneider
SKU
SE_LRD21
Model
LRD21
SGD $31.65 All prices inclusive of GST
Short description of LRD21
LRD21.
TeSys LRD thermal overload relay, 18A/690V, thermal setting range 12-18A, tripping class 10A, for protection of 3-phase motors 7.5kW@400V. Differential device with phase failure (loss). It provides a thermal adjustement dial, a manual-automatic reset selector, a test selector for simulation of a tripping, reset and stop buttons, a flag indicator and 2 auxiliary contacts 1NO+1NC for fault signalling. Settings are protected by a transparent cover lockable by sealing. Connection by screw clamp terminals, it connects directly to the bottom terminals of 3-pole contactors LC1D18-D38. Mounting on DIN rail or screw fixing, separated from the contactor, with use of a terminal block LAD7B106 (to be ordered separately). Multi standards certified (IEC, UL, CSA, CCC, EAC, ATEX, Marine), Green Premium compliant (RoHs/Reach).
Country of Origin
Thailand
TeSys LRD thermal overload relays
- 12...18 A
- class 10A.
Label : TeSys LRD
- range : TeSys
- thermal protection adjustment range : 12-18 A
- [Ui] rated insulation voltage : 600 V power circuit conforming to CSA, 600 V power circuit conforming to UL, 690 V power circuit conforming to IEC 60947-4-1
- product name : TeSys LRD
- product or component type : differential thermal overload relay
- device short name : LRD
- relay application : motor protection
- product compatibility : LC1D32,LC1D18,LC1D25,LC1D38
- network type : AC,DC
- Range Presentation :
- Manual and automatic reset
- Sealable flap
- Prewiring kit
- Terminal block for separate mounting
- Remote electrical reset
- Can be combined with TeSys model d contactors in a 45 mm wide space up to 18.5 kW, 55 mm from 15 to 30 kW
- Connectors : spring terminal, screw clamp, terminal block EverLink (LRD3)
- Class 10 A & class 20.
- Range Benefits : Safe and effective protectionWith its integrated manual
- automatic reset and simple installation in screw clamp terminals, by spring terminal, by ring terminals and by EverLink terminals version, model LRD thermal overload relays are very reliable and cover the whole range of motor ratings up to 150 A. They can be combined with TeSys d contactors to form an extremely compact starter.
- Range Application Presentation : Industry, infrastructure, building, etc. :
- Standard motor protection
- Line protection
- Protection : motor overload, stalling, loss of phase
This product is under Green Premium products which is Schneider Electric’s commitment to delivering products with best-in-class environmental performance. Green Premium promises compliance with the latest regulations, transparency on environmental impacts, as well as circular and low-CO2 products
- 12...18 A
- class 10A.
Label : TeSys LRD
- range : TeSys
- thermal protection adjustment range : 12-18 A
- [Ui] rated insulation voltage : 600 V power circuit conforming to CSA, 600 V power circuit conforming to UL, 690 V power circuit conforming to IEC 60947-4-1
- product name : TeSys LRD
- product or component type : differential thermal overload relay
- device short name : LRD
- relay application : motor protection
- product compatibility : LC1D32,LC1D18,LC1D25,LC1D38
- network type : AC,DC
- Range Presentation :
- Manual and automatic reset
- Sealable flap
- Prewiring kit
- Terminal block for separate mounting
- Remote electrical reset
- Can be combined with TeSys model d contactors in a 45 mm wide space up to 18.5 kW, 55 mm from 15 to 30 kW
- Connectors : spring terminal, screw clamp, terminal block EverLink (LRD3)
- Class 10 A & class 20.
- Range Benefits : Safe and effective protectionWith its integrated manual
- automatic reset and simple installation in screw clamp terminals, by spring terminal, by ring terminals and by EverLink terminals version, model LRD thermal overload relays are very reliable and cover the whole range of motor ratings up to 150 A. They can be combined with TeSys d contactors to form an extremely compact starter.
- Range Application Presentation : Industry, infrastructure, building, etc. :
- Standard motor protection
- Line protection
- Protection : motor overload, stalling, loss of phase
This product is under Green Premium products which is Schneider Electric’s commitment to delivering products with best-in-class environmental performance. Green Premium promises compliance with the latest regulations, transparency on environmental impacts, as well as circular and low-CO2 products
| MAIN SPECIFICATIONS | |
|---|---|
| Control Type | blue push-button: reset red push-button: stop |
| Product Or Component Type | differential thermal overload relay |
| [Ie] Rated Operational Current | blue push-button: reset red push-button: stop |
| [Ue] Rated Operational Voltage | 690 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1 |
| Device Short Name | LRD |
| EAN13 | 3389110346831 |
| Mounting Support | plate, with specific accessories rail, with specific accessories under contactor |
| Network Type | AC DC |
| Range | TeSys TeSys Deca |
| Range Name | TeSys LRD |
| Relay Application | motor protection |
| Thermal Overload Class | class 10A conforming to IEC 60947-4-1 |
| COMPLEMENTARY | |
| Communication Network Type | 690 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1 |
| Product Name | TeSys Deca TeSys LRD |
| Associated Fuse Rating | 4 A BS for signalling circuit 4 A gG for signalling circuit |
| Auxiliary Contact Composition | 1 NO + 1 NC |
| Compatibility Code | LRD |
| Connections - Terminals | 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 flexible without cable end control circuit: screw clamp terminals 2 cable(s) 1-2.5 mm² solid power circuit: screw clamp terminals 1 cable(s) 1.5-10 mm² flexible without cable end power circuit: screw clamp terminals 1 cable(s) 1-4 mm² flexible with cable end power circuit: screw clamp terminals 1 cable(s) 1-6 mm² solid |
| Depth | 70 mm |
| Flame Retardance | V1 conforming to UL 94 |
| Height | 66 mm |
| Mechanical Robustness | shocks: 15 Gn for 11 ms conforming to IEC 60068-2-7 vibrations: 6 Gn conforming to IEC 60068-2-6 |
| Net Weight | 0.124 kg |
| Network Frequency | 0...400 Hz |
| Permissible Current | 0.1 A at 250 V DC-13 for signalling circuit 1.5 A at 240 V AC-15 for signalling circuit |
| Phase Failure Sensitivity | tripping current 130 % of Ir on two phase, the last one at 0 |
| Product Compatibility | LC1D18 LC1D25 LC1D32 LC1D38 |
| Temperature Compensation | -20-60 °C |
| Thermal Protection Adjustment Range | 12-18 A |
| Tightening Torque | control circuit: 1.7 N.m - on screw clamp terminals power circuit: 2.5 N.m - on screw clamp terminals |
| Tripping Threshold | 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1 |
| Width | 45 mm |
| [Ith] Conventional Free Air Thermal Current | 5 A for signalling circuit |
| [Uimp] Rated Impulse Withstand Voltage | 6 kV |
| [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 |
| ENVIRONMENT | |
| Ambient Air Temperature For Operation | -20-60 °C without derating conforming to IEC 60947-4-1 |
| Ambient Air Temperature For Storage | -60-70 °C |
| Dielectric Strength | 1.89 kV at 50 Hz conforming to IEC 60947-1 |
| IP Degree Of Protection | IP20 conforming to IEC 60529 |
| Product Certifications | ATEX INERIS BV CCC CSA DNV-GL EAC IEC LROS (Lloyds register of shipping) RINA UKCA UL |
| Protective Treatment | TH conforming to IEC 60068 |
| Standards | CSA C22.2 No 60947-4-1 CSA C22.2 No 60947-5-1 EN 50495 EN/IEC 60947-4-1 EN/IEC 60947-5-1 GB/T 14048.4 GB/T 14048.5 UL 60947-4-1 UL 60947-5-1 |
| OTHER | |
| Poles Description | differential thermal overload relay |
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