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Schneider Over load relay- LRD3355


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Category: Relay

Tags Schneider , Over load relay , relay , LRD3355

TeSys LRD thermal overload relays - 30...40 A - class 10A


Brand: Schneider

Part Number: LRD3355



Product or component type

Differential thermal overload relay

device short name


Product compatibility



[Ui] rated insulation voltage

Power circuit: 1000 V conforming to IEC 60947-4-1

Power circuit: 600 V conforming to CSA

Power circuit: 600 V conforming to UL

Temperature compensation

-20…60 °C

IP degree of protection

IP20 conforming to IEC 60529

Ambient air temperature for operation

-20…60 °C without derating conforming to IEC 60947-4-1


TeSys LRD thermal overload relay, 40A/1000V, thermal setting range 30-40A, tripping class 10A, for protection of 3-phase motors 18.5kW@400V. Differential device with phase failure and load unbalance detection. It provides a thermal adjustement dial, a manual-automatic reset selector acting also as reset button, a trip test button for simulation of a tripping, a stop button, 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 LC1D80-D95. Mounting on DIN rail or screw fixing, separated from the contactor, with use of a terminal block LA7D3064 (to be ordered separately). Multi standards certified (IEC, UL, CSA, CCC, EAC, ATEX, Marine), Green Premium compliant (RoHs/Reach).

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