Range

TeSys

Product name

TeSys LRK

Product or component type

Differential thermal overload relay

Device short name

LR2K

Relay application

Motor protection

Product compatibility

LC7K LP1K LC1K LP4K

Network type

DC AC

Thermal overload class

Class 10A conforming to IEC 60947-4-1

Thermal protection adjustment range

8…11.5 A

[Ui] rated insulation voltage

Power circuit: 690 V conforming to BS 4941 Power circuit: 690 V conforming to IEC 60947 Power circuit: 750 V conforming to VDE 0110 group C Power circuit: 600 V conforming to CSA C22.2 No 14

Network frequency

<= 400 Hz

Mounting support

Under contactor Plate, with specific accessories Rail, with specific accessories

Auxiliary contact composition

1 NO + 1 NC

[Ith] conventional free air thermal current

6 A for signalling circuit

[Ue] rated operational voltage

<= 690 V for power circuit 690 V AC AC-15 for signalling circuit 250 V DC DC-13 for signalling circuit

Associated fuse rating

6 A gG for signalling circuit conforming to VDE 0660 6 A gG for signalling circuit conforming to IEC 60947

[Uimp] rated impulse withstand voltage

6 kV

Power dissipation per pole

2 W

Phase failure sensitivity

Yes conforming to IEC 60947-4-1

Local signalling

Trip indicator (yellow)

Control type

Red push-button: trip test function Blue push-button: stop and manual reset selector switch: manual or automatic reset

Connections - terminals

Screw clamp terminals 1 cable(s) 1.5…4 mm²solid Screw clamp terminals 2 cable(s) 1.5…4 mm²solid Screw clamp terminals 1 cable(s) 0.75…4 mm²flexible without cable end Screw clamp terminals 2 cable(s) 0.75…4 mm²flexible without cable end Screw clamp terminals 1 cable(s) 0.34…2.5 mm²flexible with cable end Screw clamp terminals 2 cable(s) 0.34…1.5 mm²flexible with cable end

Tightening torque

1.3 N.m - on screw clamp terminals - with screwdriver Philips No 2 1.3 N.m - on screw clamp terminals - with screwdriver flat Ø 6 mm 1.3 N.m - on screw clamp terminals - with screwdriver pozidriv No 2

height

58 mm

Width

45 mm

Depth

65 mm

Net weight

0.145 kg

standards

IEC 60947 VDE 0660 BS 4941 NF C 63-650

product certifications

UL CSA UKCA

Protective treatment

TC conforming to IEC 60068 TC conforming to DIN 50016

IP degree of protection

IP2X conforming to IEC 60529

Ambient air temperature for operation

-20…55 °C without derating conforming to IEC 60947 -30…60 °C with derating conforming to IEC 60947

Ambient air temperature for storage

-40…70 °C

Operating altitude

2000 m without derating

Fire resistance

850 °C conforming to IEC 60695-2-1

Flame retardance

V1 conforming to UL 94 Requirement 2 conforming to NF F 16-101 Requirement 2 conforming to NF F 16-102

Mechanical robustness

Shocks NO contact: 10 Gn for 11 ms conforming to IEC 60068-2-27 Shocks NC contact: 10 Gn for 11 ms conforming to IEC 60068-2-27 Vibrations NO contact: 2 Gn, 5...300 Hz conforming to IEC 60068-2-6 Vibrations NC contact: 2 Gn, 5...300 Hz conforming to IEC 60068-2-6

Unit Type of Package 1

PCE

Number of Units in Package 1

1

Package 1 Height

7.200 cm

Package 1 Width

4.800 cm

Package 1 Length

8.500 cm

Package 1 Weight

157.000 g

Unit Type of Package 2

S02

Number of Units in Package 2

41

Package 2 Height

15.000 cm

Package 2 Width

30.000 cm

Package 2 Length

40.000 cm

Package 2 Weight

6.855 kg

Warranty

18 months