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LRD350L 其他数据使用手册 - Schneider Electric（施耐德）
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Schneider Electric（施耐德）
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LRD350L数据手册
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The information provided in this documentation contains general descriptions and/or technical characteristics of the performance of the products contained herein.
This documentation is not intended as a substitute for and is not to be used for determining suitability or reliability of these products for specific user applications.
It is the duty of any such user or integrator to perform the appropriate and complete risk analysis, evaluation and testing of the products with respect to the relevant specific application or use thereof.
Neither Schneider Electric Industries SAS nor any of its affiliates or subsidiaries shall be responsible or liable for misuse of the information contained herein.
Oct 1, 2015
1
Product data sheet
Characteristics
LRD350L
TeSys D thermal overload relays - 37...50 A -
class 20
Main
Commercial Status Commercialised
Range TeSys
Product name TeSys LRD
Product or component
type
Differential thermal overload relay
Device short name LRD
Relay application Motor protection
Product compatibility LC1D40A...LC1D65A
Network type AC
DC
Overload tripping class Class 20 conforming to IEC 60947-4-1
Thermal protection ad-
justment range
37...50 A
[Ui] rated insulation
voltage
690 V power circuit conforming to IEC 60947-4-1
600 V power circuit conforming to UL
600 V power circuit conforming to CSA
Complementary
Network frequency 0...400 Hz
Mounting support DIN rail
Plate
Under contactor
Tripping threshold 1.14 +/- 0.06 Ir conforming to IEC 60947-4-1
[Ith] conventional free air thermal current 5 A for signalling circuit
Permissible current 0.22 A at 125 V DC-13 for signalling circuit
3 A at 120 V AC-15 for signalling circuit
[Ue] rated operational voltage 690 V AC 0...400 Hz
[Uimp] rated impulse withstand voltage 6 kV
Phase failure sensitivity Tripping current 130 % of Ir on two phase, the last one at 0
Control type Blue push-button for reset mode
Red push-button stop
Temperature compensation -20...60 °C
Connections - terminals Power circuit : EverLink BTR screw connectors 1 cable(s) 1...35 mm² - cable stiff-
ness: solid - without cable end
Power circuit : EverLink BTR screw connectors 1 cable(s) 1...35 mm² - cable stiff-
ness: flexible - with cable end
Power circuit : EverLink BTR screw connectors 1 cable(s) 1...35 mm² - cable stiff-
ness: flexible - without cable end
Control circuit : screw clamp terminals 2 cable(s) 1...2.5 mm² - cable stiffness:
solid - without cable end
Control circuit : screw clamp terminals 2 cable(s) 1...2.5 mm² - cable stiffness:
flexible - with cable end
Control circuit : screw clamp terminals 2 cable(s) 1...2.5 mm² - cable stiffness:
flexible - without cable end
Tightening torque Power circuit : 5 N.m - on EverLink BTR screw connectors
Control circuit : 1.7 N.m - on screw clamp terminals
Height 70 mm
Width 55 mm
Depth 123 mm
Product weight 0.375 kg
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