Three-pole Thermal Overload Relays
Three-pole thermal overload relays designed to protect ac circuits against overloads, phase failure, long starting times and prolonged stalling of the motor.
Adjustable relay setting dial
Test button
Stop button
Manual/auto reset
Trip indicator
Sealable cover
1N/O & 1N/C auxiliary contacts
Direct mounting beneath three-pole contactors or independent mounting on DIN rail
Insulation voltage 600V, Withstand Voltage 6kV
Dimensions when mounted on an ac contactor
Contactor Rating(kW)
H (mm)
W (mm)
D (mm)
4 - 9
123
45
86
11 - 18.5
137
45
92
22 - 37
175
75
123
45
178
85
129
59 - 80
267
120
136
Dimensions when mounted on a dc contactor
Contactor Rating (kW)
H (mm)
W (mm)
D (mm)
4 - 9
123
45
95
11 - 18.5
137
45
101
Approvals
UL and CSA
Thermal Overload Relay NO/NC, 37 → 50 A, 50 A
Manufacturer:
Schneider ElectricManufacturer Part No:
LRD3357
Enrgtech Part No:
ET16748137
Warranty:
Manufacturer
£ 189.32
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Better World Verification:
Green Premium
Better World Product:
Yes
Reset Method:
Automatic, Manual
Minimum Operating Temperature:
-20°C
Pole Configuration:
3P
Operating Temperature Range:
-20 → +60 °C
Contact Current Rating:
50 A
Series:
LRD
Length:
236mm
Mounting Style:
Direct Contactor
Width:
55mm
Depth:
123mm
