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TeSys LRD thermal overload relays – 0.25…0.4 A – class 10A

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Description

TeSys LRD thermal overload relay, 0.4A/690V, thermal setting range 0.25-0.4A, tripping class 10A, for protection of 3-phase motors 0.09kW@400V. Differential device with phase failure and load unbalance detection. It provides a thermal adjustement dial, a manual-automatic reset selector, a test selector for simulation of a tripping, reset and stop buttons, 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 LC1D09-D38. Mounting on DIN rail or screw fixing, separated from the contactor, with use of a terminal block LAD7B106 (to be ordered separately). Multi standards certified (IEC, UL, CSA, CCC, EAC, ATEX, Marine), Green Premium compliant (RoHs/Reach).

Specification

Range TeSys
TeSys Deca
Product name TeSys LRD
TeSys Deca
Product or component type Differential thermal overload relay
Device short name LRD
Relay application Motor protection
Product compatibility LC1D25
LC1D18
LC1D38
LC1D12
LC1D32
LC1D09
Network type AC
DC
Thermal overload class Class 10A conforming to IEC 60947-4-1
Thermal protection adjustment range 0.25…0.4 A
[Ui] rated insulation voltage Power circuit: 600 V conforming to CSA
Power circuit: 600 V conforming to UL
Power circuit: 690 V conforming to IEC 60947-4-1
Complementary
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 3 A at 120 V AC-15 for signalling circuit
0.22 A at 125 V DC-13 for signalling circuit
[Ue] rated operational voltage 690 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
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 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
Power circuit: screw clamp terminals 1 cable(s) 1.5…10 mm² flexible without cable end
Power circuit: screw clamp terminals 1 cable(s) 1…4 mm² flexible with cable end
Power circuit: screw clamp terminals 1 cable(s) 1…6 mm² solid without cable end
Tightening torque Control circuit: 1.7 N.m – on screw clamp terminals
Power circuit: 1.7 N.m – on screw clamp terminals
height 66 mm
Width 45 mm
Depth 70 mm
Net weight 0.124 kg
Environment
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 1.89 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
RINA
DNV-GL
LROS (Lloyds register of shipping)
ATEX INERIS
UKCA
Packing Units
Unit Type of Package 1 PCE
Number of Units in Package 1 1
Package 1 Height 5.400 cm
Package 1 Width 7.100 cm
Package 1 Length 8.000 cm
Package 1 Weight 138.000 g
Unit Type of Package 2 S02
Number of Units in Package 2 24
Package 2 Height 15.000 cm
Package 2 Width 30.000 cm
Package 2 Length 40.000 cm
Package 2 Weight 3.624 kg

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