Specifications:
The Schneider Electric TeSys LRD21 is a differential thermal overload relay rated for 12–18A, designed to mount directly beneath 3-pole TeSys D contactors like the LC1D18, providing Class 10A motor overload and phase-loss protection
Key Electrical Specifications
- Current Adjustment Range: 12 A to 18 A
- Max Operational Voltage (\(U_{e}\)): 690 V AC (0–400 Hz)
- Trip Class: Class 10A conforming to IEC 60947-4-1
- Auxiliary Contacts: 1 Normally Open (NO) + 1 Normally Closed (NC)
- Signalling Thermal Current (\(I_{th}\)): 5 A (for auxiliary/signalling circuit
