LRD21
Schneider Electric LRD21 TeSys LRD thermal overload relays. 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 and load unbalance detection. 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).
Details
- Brand: Schneider Electric
- Part number: LRD21
- Series: TeSys
- Category: Thermal Overload Relay
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Specifications
- Depth
- 70 mm
- Width
- 45 mm
- Product weight
- 0.124 kg
- Network frequency
- 0...400 Hz
- IP degree of protection
- IP20
- Manufacturer part number
- LRD21
- Rated insulation voltage
- 690 V
- Thermal adjustment range
- 12...18 A
- Rated operational voltage
- 690 V AC
- Power circuit tightening torque
- 2.5 N.m
- Rated impulse withstand voltage
- 6 kV
- Control circuit tightening torque
- 1.7 N.m
- Ambient air temperature for operation
- -20...60 °C