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Small Safety Limit Switch


Small safety limit switch, Roller plunger, 1NC/1NO, Cable (left-hand), 5 m

Actuator Roller plunger
Operating mechanism Slow action
Contact form 1NC/1NO
Cable specifications UL Style 2464, 5 m
Degree of protection IP67

Item list of D4F

  • Ratings / Performance
Operating mechanismSlow action
ctuatorRoller plunger 12 dia. x 4.4
Sintered stainless steel roller
Frequency50/60 Hz
Contact form1NC/1NO
LoadGeneral load/Micro load
Earth terminalWith earth wire
Cable specificationsUL Style 2464, 5 m
Diameter: 8.3 mm
Location of lead output: Underside
Ambient temperatureOperating: -30 to 70 ℃ (with no icing)
Ambient humidity95 %RH max.
Permissible operating speed1 mm/s to 0.5 m/s
Permissible operating frequencyElectrical: 30 operations / 1 minute max.
Mechanical: 120 operations / 1 minute max.
Contact resistance (Initial value)700 mΩ max.
Insulation resistanceBetween each terminal of the same polarities: 100 MΩ min.
Between each terminal of the different polarities: 100 MΩ min.
Between live-metallic part and ground: 100 MΩ min.
Between each terminal and non-live-metallic part: 100 MΩ min.
at 500 VDC
Impulse withstand voltageBetween each terminal of the same polarities: 2.5 kV
Between each terminal of the different polarities: 4 kV
Between each terminaland ground: 4 kV
DurabilityMechanical: 10 million operations min.
Vibration resistanceMalfunction: 10 to 55 Hz, 0.75 mm single amplitude
Shock resistanceDestruction: 1000 m/s2 min.
Malfunction: 300 m/s2 min.
Degree of protectionIP67
Classification of protection against electric shockClass I (with earth wire)
Operating Force (OF)Standard value 12 N max.
Release Force (RF)Standard value 1.5 N min.
Pre-Travel (PT)PT1 (11-12, 21-22): 1 mm max. (NC)
PT1 (31-32, 41-42): 1.3 mm max. (NC)
PT2: Reference value 1.2 mm (NO)
Over-Travel (OT)Standard value 3.2 mm min.
Operating Position (OP)29.4±1 mm
Total Travel (TT)Reference value 4.5 mm
Direct Opening ForceStandard value 20 N min.
Direct Opening TravelStandard value 1.8 mm min.
  • Dimensions

Mounting hole dimensions

  • Circuits configuration


Small Safety Limit Switch