Page top


Pull-reset Safety Limit Switch


General load/Micro load, IP67, Slow action, 1NC/1NO, Adjustable roller lever, Pg13.5, Number of conduit: 1, Front mounting

Actuator Adjustable roller lever
Operating mechanism Slow action
Contact form 1NC/1NO
Degree of protection IP67

Item list of D4N-[]R

  • Ratings / Performance
Operating mechanismSlow action
ctuatorAdjustable roller lever 17.5 dia. x 6.8
Metal lever, Resin roller
R20 to 66
Form lock type
Frequency50/60 Hz
Contact form1NC/1NO
LoadGeneral load/Micro load
Number of conduit: 1
Ambient temperatureOperating: -30 to 70 ℃ (with no icing)
Ambient humidity95% RH max.
Permissible operating frequency30 operations / 1 minute max.
Contact resistance (Initial value)25 mΩ max.
Insulation resistance100 MΩ min.
Impulse withstand voltageBetween each terminal of the same polarities: 2.5 kV
Between each terminal of the different polarities: 4 kV
Between each terminal and non-live-metallic part: 6 kV
DurabilityElectrical: 300,000 operations min. (10 A at 250 VAC), 500,000 operations min. (3 A at 250 VAC)
Mechanical: 1,000,000 operations min.
Vibration resistanceMalfunction: 10 to 55 Hz, 0.75 mm single amplitude
Shock resistanceDestruction: 1000 m/s2
Malfunction: 300 m/s2
Pollution degree3 (EN60947-5-1)
Degree of protectionIP67
Classification of protection against electric shockClass II (Double insulation)
Locking Force (LF)Standard value 5.6 N max.
Locking Travel (LT)Standard value 55 ° max.
Pre-Travel (PT)NC contacts are open: 18 to 27 °
NO contacts are closed: Reference value 44 °
Total Travel (TT)Reference value 80 °
Direct Opening ForceStandard value 20 N min.
Direct Opening TravelStandard value 50 ° min.
Condition of operating characteristicsWhen the lever length is 32 mm
  • Dimensions

Mounting hole dimensions

  • Circuits configuration


Pull-reset Safety Limit Switch