LR3D3353
OVERLOAD RELAY
Trade Price
POA
Per
1
Unit
EA
Pack Quantity
1
Information
TeSys LRD thermal overload relay, 32A/1000V, thermal setting range 23-32A, tripping class 10A, for protection of 3-phase motors 15kW@400V. Non differential device, it can be used with unbalanced loads. 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).
Technical Specifications
Range
TeSys
Product name
TeSys LRD TeSys Deca
Product or component type
Non differential thermal overload relay
Device short name
LR3D
Relay application
Motor protection
Product compatibility
LC1D95 LC1D80
Network type
AC DC
Thermal overload class
Class 10A conforming to IEC 60947-4-1
Thermal protection adjustment range
23…32 A
[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
Network frequency
0...400 Hz
Mounting support
Plate, with specific accessories Rail, with specific accessories Under contactor
Tripping threshold
1.14 +/- 0.06 Ir conforming to IEC 60947-4-1
Auxiliary contact composition
1 NO + 1 NC
[Ith] conventional free air thermal current
5 A for signalling circuit
Permissible current
0.72 A at 500 V AC-15 for signalling circuit 0.06 A at 440 V DC-13 for signalling circuit
[Ue] rated operational voltage
1000 V AC 0...400 Hz for power circuit conforming to IEC 60947-4-1
Associated fuse rating
4 A gG for signalling circuit 4 A BS for signalling circuit
[Uimp] rated impulse withstand voltage
6 kV conforming to IEC 60947-1
Phase failure sensitivity
Tripping current 130 % of Ir on two phase, the last one at 0
Control type
Red push-button: stop Blue push-button: reset
Temperature compensation
-20…60 °C
Connections - terminals
Power circuit: screw clamp terminals 1 cable(s) 4…35 mm² flexible without cable end Power circuit: screw clamp terminals 1 cable(s) 4…35 mm² flexible with cable end Power circuit: screw clamp terminals 1 cable(s) 4…35 mm² solid without cable end Control circuit: screw clamp terminals 2 cable(s) 1…2.5 mm² flexible without cable end Control circuit: screw clamp terminals 2 cable(s) 1…2.5 mm² flexible with cable end Control circuit: screw clamp terminals 2 cable(s) 1…2.5 mm² solid without cable end
Tightening torque
Control circuit: 1.7 N.m - on screw clamp terminals Power circuit: 9 N.m - on screw clamp terminals
height
81 mm
Width
70 mm
Depth
115 mm
Net weight
0.51 kg
Climatic withstand
conforming to IACS E10
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
Ambient air temperature for storage
-60…70 °C
Flame retardance
V1 conforming to UL 94
Mechanical robustness
Vibrations: 6 Gn conforming to IEC 60068-2-6 Shocks: 15 Gn for 11 ms conforming to IEC 60068-2-7
Dielectric strength
2.2 kV at 50 Hz conforming to IEC 60947-1
Standards
EN/IEC 60947-4-1 EN/IEC 60947-5-1 UL 60947-4-1 UL 60947-5-1 CSA C22.2 No 60947-4-1 CSA C22.2 No 60947-5-1 GB/T 14048.4 GB/T 14048.5 EN 50495
product certifications
IEC UL CSA CCC EAC BV DNV-GL LROS (Lloyds register of shipping) ATEX INERIS UKCA
Unit Type of Package 1
PCE
Number of Units in Package 1
1
Package 1 Height
7.8 cm
Package 1 Width
12.0 cm
Package 1 Length
8.7 cm
Package 1 Weight
522.0 g
Warranty
18 months
Document Links
Datasheet
Technical Data