LRD04 Schneider Electric Industrial Automation Components

Schneider Electric LRD04 Schneider Electric LRD04, part of the LRD sub-range, is a differential thermal overload relay designed for direct connection to a contactor with outgoing cables featuring screw-clamp terminals for the control circuit. This 3-pole device offers protection functions classified under Class 10A, with a rated current range of 0.4-0.63 A. It includes protection settings for thermal overload within the same current range. The LRD04 is equipped with 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contacts. It supports a rated voltage (AC) for phase-to-phase connections up to 690 V at frequencies from 0 to 400Hz, with a minimum operating current of 0.4 A and a maximum of 0.63 A.

Part#:LRD04

Manufacturer:Schneider Electric

Product Lifecycle:Active

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Schneider Electric LRD04, part of the LRD sub-range, is a differential thermal overload relay designed for direct connection to a contactor with outgoing cables featuring screw-clamp terminals for the control circuit. This 3-pole device offers protection functions classified under Class 10A, with a rated current range of 0.4-0.63 A. It includes protection settings for thermal overload within the same current range. The LRD04 is equipped with 1 Normally Open (NO) and 1 Normally Closed (NC) auxiliary contacts. It supports a rated voltage (AC) for phase-to-phase connections up to 690 V at frequencies from 0 to 400Hz, with a minimum operating current of 0.4 A and a maximum of 0.63 A.

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Product Details

Product Compatibility
LC1D25 LC1D38 LC1D32 LC1D18 LC1D12 LC1D09
Connections - Terminals
Control circuit screw clamp terminals 2 0.00…0.00 in² (1…2.5 mm²) flexible without cable end Control circuit screw clamp terminals 2 0.00…0.00 in² (1…2.5 mm²) flexible with cable end Control circuit screw clamp terminals 2 0.00…0.00 in² (1…2.5 m
Mounting Support
Plate, with specific accessories Rail, with specific accessories Under contactor
[Ui] Rated Insulation Voltage
Power circuit 600 V CSA Power circuit 600 V UL Power circuit 690 V IEC 60947-4-1
Associated Fuse Rating
4 A gG signalling circuit 4 A BS signalling circuit
Tightening Torque
Control circuit 15.05 lbf.in (1.7 N.m) screw clamp terminals Power circuit 15.05 lbf.in (1.7 N.m) screw clamp terminals
Permissible Current
3 A 120 V AC-15 signalling circuit 0.22 A 125 V DC-13 signalling circuit
Control Type
Red push-button stop Blue push-button reset
Network Type
AC DC
Height
2.60 in (66 mm)
Net Weight
0.27 lb(US) (0.124 kg)
Width
1.77 in (45 mm)
Depth
2.76 in (70 mm)
Phase Failure Sensitivity
Tripping current 130 % of Ir on two phase, the last one at 0
Temperature Compensation
-4…140 °F (-20…60 °C)
[Ue] Rated Operational Voltage
690 V AC 0...400 Hz power circuit IEC 60947-4-1
[Ith] Conventional Free Air Thermal Current
5 A signalling circuit
Auxiliary Contact Composition
1 NO + 1 NC
Tripping Threshold
1.14 +/- 0.06 Ir IEC 60947-4-1
[Uimp] Rated Impulse Withstand Voltage
6 kV

Network Frequency

0...400 Hz

Thermal Protection Adjustment Range

0.4…0.63 A

Device Short Name

LRD

Product Name

TeSys LRD

Range

TeSys

Relay Application

Motor protection

Thermal Overload Class

Class 10A IEC 60947-4-1

Product Or Component Type

Differential thermal overload relay

Product condition

ORIGINAL PACKAGING

SURPLUS ORIGINAL PACKAGING - 100% unused and in original packaging

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