Schneider LR2K0321 | TeSys K – differential thermal overload relays – 10…14 A – class 10A
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CompareSchneider LR2K0321 | TeSys K – differential thermal overload relays – 10…14 A – class 10A
Schneider LR2K0321 | Differential Thermal Overload Relay, TeSys K – 10 to 14 A, Class 10A
The Schneider LR2K0321 is a differential thermal overload relay from the TeSys K series. This relay is specifically designed to provide robust protection for motors, guarding against overloads, phase failures, and imbalances. It offers protection with an adjustable current range of 10 to 14 A and is classified as Class 10A for motor protection.
General Information:
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Brand: Schneider Electric
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Series: TeSys K
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Model: LR2K0321
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Type: Differential Thermal Overload Relay
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Adjustable Current Range: 10 to 14 A
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Trip Class: 10A (response time for motor protection)
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Mounting: Direct mount on TeSys K (LC1K) contactors
Key Features:
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Differential Protection: Safeguards against phase loss, imbalance, and overload conditions
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Adjustable Current Setting: Fine-tune to the motor’s specific rating for accurate protection
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Trip Indicator: Clear indication of fault conditions
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Reset Options: Manual or automatic reset capability for flexibility
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Auxiliary Contacts: Includes 1 Normally Open (NO) and 1 Normally Closed (NC) contact for fault signaling
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Compact Design: Optimizes space in electrical panels and enclosures
Technical Specifications:
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Current Range: 10 to 14 A
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Trip Class: 10A (standard motor protection response)
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Auxiliary Contacts: 1 Normally Open + 1 Normally Closed
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Reset Options: Manual or automatic reset
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Mounting: Direct on LC1K contactors
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Compliant with: IEC 60947-4-1, IEC 60947-5-1 standards
Applications:
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Industrial motor protection
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Pumps, conveyors, and compressors
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HVAC and machine tool applications
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Small to medium motor-driven equipment
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Panel builders and original equipment manufacturers (OEMs)
Benefits:
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Enhanced Motor Protection: Protects against overload, phase failure, and imbalance
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Fast Fault Response: Reduces downtime and damage to the motor
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Easy Integration: Compatible with TeSys K contactors for efficient setup
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Space-efficient Design: Ideal for control panels with limited space
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User-Friendly Reset Mechanism: Allows for easy resetting after faults
| Range | TeSys |
|---|---|
| Product name | TeSys LRK |
| Product or component type | Differential thermal overload relay |
| Device short name | LR2K |
| Relay application | Motor protection |
| Product compatibility | LC7K LP4K LC1K LP1K |
| Network type | AC DC |
| Thermal overload class | Class 10A conforming to IEC 60947-4-1 |
| Thermal protection adjustment range | 10…14 A |
| [Ui] rated insulation voltage | Power circuit: 690 V conforming to BS 4941 Power circuit: 690 V conforming to IEC 60947 Power circuit: 750 V conforming to VDE 0110 group C Power circuit: 600 V conforming to CSA C22.2 No 14 |
| Network frequency | <= 400 Hz |
|---|---|
| Mounting support | Under contactor Plate, with specific accessories Rail, with specific accessories |
| Auxiliary contact composition | 1 NO + 1 NC |
| [Ith] conventional free air thermal current | 6 A for signalling circuit |
| [Ue] rated operational voltage | <= 690 V for power circuit 690 V AC AC-15 for signalling circuit 250 V DC DC-13 for signalling circuit |
| Associated fuse rating | 6 A gG for signalling circuit conforming to VDE 0660 6 A gG for signalling circuit conforming to IEC 60947 |
| [Uimp] rated impulse withstand voltage | 6 kV |
| Power dissipation per pole | 2 W |
| Phase failure sensitivity | Yes conforming to IEC 60947-4-1 |
| Local signalling | Trip indicator (yellow) |
| Control type | Red push-button: trip test function Blue push-button: stop and manual reset selector switch: manual or automatic reset |
| Connections – terminals | Screw clamp terminals 1 cable(s) 1.5…4 mm²solid Screw clamp terminals 2 cable(s) 1.5…4 mm²solid Screw clamp terminals 1 cable(s) 0.75…4 mm²flexible without cable end Screw clamp terminals 2 cable(s) 0.75…4 mm²flexible without cable end Screw clamp terminals 1 cable(s) 0.34…2.5 mm²flexible with cable end Screw clamp terminals 2 cable(s) 0.34…1.5 mm²flexible with cable end |
| Tightening torque | 1.3 N.m – on screw clamp terminals – with screwdriver Philips No 2 1.3 N.m – on screw clamp terminals – with screwdriver flat Ø 6 mm 1.3 N.m – on screw clamp terminals – with screwdriver pozidriv No 2 |
| height | 58 mm |
| Width | 45 mm |
| Depth | 65 mm |
| Net weight | 0.145 kg |
| Standards | IEC 60947 BS 4941 VDE 0660 NF C 63-650 |
|---|---|
| product certifications | UL CSA UKCA |
| Protective treatment | TC conforming to IEC 60068 TC conforming to DIN 50016 |
| IP degree of protection | IP2X conforming to IEC 60529 |
| Ambient air temperature for operation | -20…55 °C without derating conforming to IEC 60947 -30…60 °C with derating conforming to IEC 60947 |
| Ambient air temperature for storage | -40…70 °C |
| Operating altitude | 2000 m without derating |
| Fire resistance | 850 °C conforming to IEC 60695-2-1 |
| Flame retardance | V1 conforming to UL 94 Requirement 2 conforming to NF F 16-101 Requirement 2 conforming to NF F 16-102 |
| Mechanical robustness | Shocks NO contact: 10 Gn for 11 ms conforming to IEC 60068-2-27 Shocks NC contact: 10 Gn for 11 ms conforming to IEC 60068-2-27 Vibrations NO contact: 2 Gn, 5…300 Hz conforming to IEC 60068-2-6 Vibrations NC contact: 2 Gn, 5…300 Hz conforming to IEC 60068-2-6 |
| Unit Type of Package 1 | PCE |
|---|---|
| Number of Units in Package 1 | 1 |
| Package 1 Height | 5.000 cm |
| Package 1 Width | 7.000 cm |
| Package 1 Length | 8.500 cm |
| Package 1 Weight | 162.000 g |
| Unit Type of Package 2 | S02 |
| Number of Units in Package 2 | 41 |
| Package 2 Height | 15.000 cm |
| Package 2 Width | 30.000 cm |
| Package 2 Length | 40.000 cm |
| Package 2 Weight | 6.972 kg |
| Unit Type of Package 3 | P06 |
| Number of Units in Package 3 | 656 |
| Package 3 Height | 75.000 cm |
| Package 3 Width | 80.000 cm |
| Package 3 Length | 60.000 cm |
| Package 3 Weight | 119.552 kg |
| Warranty | 18 months |
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Main Document
Data Sheet : LR2K0321
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