SH4140-RL-TAF Heavy-duty Limit Switch – Special

Small size Heavy-duty use Limit Switch – Special

  • Protection sturucture :
  • Contact resistance :
    Roller Lever
  • Aluminum die cast housing with a strong alumite coating  provides long mechanical lifespan and
    excellent corrosion.
  • A wide variety of actuators for a wide scope of application.
  • Excellent mechanical durability, precise operating characteristic.
  • Exposed screws and nuts are made of stainless steel.
  • Water-proof type, Dust-proof type(IP56)
  • Suitable for the places such as harbor loading and unloading facilities, ship deck machine, construction equipments
  • Custom-made for cold-proof type(-40℃~+40℃), heat-resisting type(+50℃~+120℃)


Product Specification

Protection Class IP56
Mechanical Lifespan over 300,000 times
Electrical Lifespan over 100,000 times
Allowable Operating Frequency Mechanical 120 times/min
Electrical 30 times/min
Insulation Resistance over 100MΩ (DC 500V)
Contact Resistance under 50mΩ
withstand voltage between non-continuous terminal AC1000V (50/60Hz per 1 min)
between each terminal and non-conducting metal part AC2000V (50/60Hz per 1 min)
shock resistance durability about 1000m/s²(100G)
malfunction about 250m/s²(25G)
vibration 10-55Hz double amplitude 1.5mm
ambient operating-temperature range – 10~+55℃
ambient operating-humidity range 45~85%RH
Operating Characteristics

OF max.g : 1,400
RF min.g : 165
PT : 20˚ ± 5˚
MD max : 5˚
TT min : 70˚
ACTUTOR : undefined
형번 : undefined
O.F max.N : undefined
SH4140-RL-TAF about 0.60 Kg  (KEPCO)
External View 
  • 1.The size allowance not indicated on the above is ±0.4mm.
  • 2.In case the product is installed outdoor or for water-proof use, please use water-proof connector or cable gland.
  • 3.Keep the cable entry airtight by using water-proof cap in case it is contemporary installed outdoor without using water-proof connector or cable gland.
  • 4.Power entry standard: PF1/2
rated voltage
non-inductive load
inductive load(A)
resistance load lamp load inductive load motor load
normal shut normal open normal shut normal open normal shut normal open normal shut normal open
AC 125 10 3 1.5 10 5 2.5
250 6 2 1 10 3 1.5
480 2 1.5 0.8 3 1.5 0.8
DC 8 10 6 3 6 6
Circuit System
Contact Point 2CKT-DB(double 2 circuits)
Inrush Current normal shut
normal shut
Ambient Operating-temperature Range
Ambient Operating-humidity Range

1.Upper cost is based on the normal current.
2.inductive load rate is over 0.4(an alternating current),under 7ms(a direct current)
3.lamp load has 10 times inrush current.
4.motor load current has 6 times inrush current.



There are no reviews yet.

Be the first to review “SH4140-RL-TAF Heavy-duty Limit Switch – Special”

Your email address will not be published. Required fields are marked *