5.5 to 8 A Thermal Setting Range
The LRD12 has an adjustable thermal protection range of 5.5 to 8 A for motor overload protection.
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Schneider
Schneider LRD12 Thermal Overload Relay 5.5-8A 690V
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$37.56
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PRODUCT DOCUMENTATION
Product Information
Technical specifications, features, applications and purchasing information.
Technical Specifications
| Brand | Schneider |
| Model Number | LRD12 |
| Product Category | Thermal Overload Relay |
| Product Range | TeSys Deca |
| Relay Type | Differential thermal overload relay |
| Current Setting Range | 5.5 to 8 A |
| Tripping Class | Class 20 (IEC 60947-4-1) |
| Rated Operational Voltage (Ue) | 690 V AC |
| Auxiliary Contacts | 1 NO + 1 NC |
| Motor Power (at 400 V) | 3 kW |
| Mounting | Direct mounting on TeSys D contactors (LC1D09 to LC1D38) |
| Operating Temperature | -20°C to +60°C |
| Width | 45 mm |
| Phase Unbalance Protection | Differential phase failure and load unbalance detection |
| Reset | Manual and automatic reset selector |
Key Features
Class 20 Tripping
Conforms to Class 20 tripping characteristics per IEC 60947-4-1, suitable for motors requiring a higher trip time at locked-rotor current.
Phase Unbalance Protection
Differential phase failure and load unbalance detection help protect three-phase motors against abnormal operating conditions.
1 NO + 1 NC Auxiliary Contacts
Provides one normally open and one normally closed auxiliary contact for fault signaling and control circuit integration.
Direct Mounting on TeSys D Contactors
Mounts directly to the bottom terminals of LC1D09 to LC1D38 contactors to form a compact starter assembly.
Temperature Compensated
Temperature compensation supports protection accuracy across an operating temperature range of -20°C to +60°C.
Applications
- Three-phase motor overload protection
- Motor protection in TeSys D starter assemblies
- Pump and fan motor protection
- Conveyor and material handling motor circuits
- Industrial machinery motor control panels
- HVAC and building services motor protection
- Circuits requiring Class 20 tripping characteristics
Purchase Information
We support online purchase of the Schneider LRD12 Thermal Overload Relay. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.
Frequently Asked Questions
What is the Schneider LRD12? The LRD12 is a TeSys Deca differential thermal overload relay for motor protection.
What is the current setting range? The thermal protection adjustment range is 5.5 to 8 A.
What tripping class does it use? It conforms to Class 20 tripping according to IEC 60947-4-1.
What is the rated operational voltage? The rated operational voltage (Ue) is 690 V AC.
What auxiliary contacts does it provide? It provides 1 NO + 1 NC auxiliary contacts.
Which contactors is it compatible with? It mounts directly on TeSys D contactors from LC1D09 to LC1D38.
What motor power does it protect at 400 V? It protects motors up to 3 kW at 400 V.
What is the operating temperature range? The temperature compensation range is -20°C to +60°C.
Does it have phase unbalance protection? Yes, it includes differential phase failure and load unbalance detection.
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