General-purpose Limit Switch


General-purpose Limit switches, General load, IP67, Snap action, 4-circuit double break type, DPST-NO/DPST-NC, Rotary action, LED

Shape/Structure General-purpose Limit switches
Actuator Rotary action
Operation type Simultaneous operation type
Contact form DPST-NO/DPST-NC
Degree of protection IP67

Item list of D4A-[]N

  • Ratings / Performance
Shape/Structure4-circuit double break type
Service lifeGeneral type
Operating mechanismSnap action
ctuatorRotary action
Operation typeSimultaneous operation type
Frequency50/60 Hz
Contact configuration4-circuit double break type
Contact formDPST-NO/DPST-NC
LoadGeneral load
Ratings (DC): Non-Inductive loadResistive load (NC): 5 A at 12 VDC、3 A at 24 VDC、1 A at 48 VDC
Inrush currentNC: 30 A
NO: 20 A
IndicatorLED、Possible to change between Light when operating and Light when not operating.
48 VDC
漏れ電流: Approx. 1.4 mA
Ambient temperature使用時: -10 to 80℃
Ambient humidity35 to 95%
Permissible operating frequencyElectrical: 30 operations / 1 minute max.
Mechanical: 300 operations / 1 minute max.
Contact resistance (Initial value)25 mΩ max.
Insulation resistanceBetween each terminal of the same 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
Dielectric strengthBetween each terminal of the same polarities: 1000 VAC 50/60 Hz 1 min
Between live-metallic part and ground: 1,500 VAC 50/60 Hz for 1 min
Between each terminal and non-live-metallic part: 1,500 VAC 50/60 Hz for 1 min
DurabilityElectrical: 750,000 operations min. (5 A at 125 VAC)
Mechanical: 30,000,000 operations min.
Vibration resistanceMalfunction: 10 to 55 Hz, 1.5 mm double amplitude
Shock resistanceDestruction: Max. 1000 m/s**2
Malfunction: 300 m/s**2 max.
Pollution degree3
Degree of protectionIP67
: NEMA Type1, 2, 3, 4, 4X, 5, 6P, 12, 13
Classification of protection against electric shockClass I (with ground terminal)
Operating Force (OF)Standard value 0.39 N・m max.
Release Force (RF)Standard value 0.05 N・m min.
Pre-Travel (PT)Standard value 15°max./ Average value 12°max.
Movement Differential (MD)Standard value 7°max./ Average value 6°max.
Over-Travel (OT)Standard value 70 ° min.
  • Circuits configuration

  • Characteristic chart

Durability curve



General-purpose Limit Switch


about this Product