LK1

Power class: 1.6 A to 7.5 A
Series: K1

  • normally closed
  • resets automatically
  • fully insulated in a screw on housing
  • with epoxy
  • with connector cables
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Thermal protectors LK1Thermal protectors LK1

Technical specifications

Nominal switching temperature (NST) in 5 °C 60 °C - 200 °C
Tolerance (standard) ±5 K
Reverse switch temperature (RST) below NST UL ≥ 35° C (≤ 80° C NST)#-35 K ± 15 K (≥ 85°C ≤ 180° C NST)#-65 K ± 15 K (≥ 185° C ≤ 200° C NST)
Reverse switch temperature (RST) below NST VDE ≥ 35 °C
Housing height from 7.0 mm
Diameter 10.0 mm
Thread/Length M4 x 5.0 mm
Width across flats/Max. torque 10.0 mm / 2 Nm
Resistance to impregnation suitable
Suitable for installation in protection class I + II
Pressure resistance to the switch housing 450 N
Standard connection Lead wire 0.25 mm² / AWG22
Operational voltage range AC/DCup until 500 V AC / 14 V DC
Rated voltage AC250 V (VDE) 277 V (UL)
Rated current AC cos ϕ = 1.0/cycles2.5 A / 10,000
Rated current AC cos ϕ = 0.6/cycles1.6 A / 10,000
Max. switching current AC cos ϕ = 1.0/cycles6.3 A / 3,000
Max. switching current AC cos ϕ = 1.0/cycles7.5 A / 300
Rated current AC cos ϕ = 0.4/cycles1.8 A / 10,000
Max. switching current AC cos ϕ = 0.4/cycles7.2 A / 1,000
Rated voltage DC12 V
Max. switching current DC/cycles40.0 A / 5,000
High voltage resistance2.0 kV
Total bounce time< 1 ms
Contact resistance (according to MIL-STD. R5757)≤ 50 mΩ
Vibration resistance at 10 ... 60 Hz100 m/s²

Approbation

IECENECVDEULCQC
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