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D4B-4A71N

Safety Limit Switch

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General load, IP67, Slow action, 2NC, Top roller plunger, M20, Front mounting

Actuator Top roller plunger
Operating mechanism Slow action
Contact form 2NC
Degree of protection IP67

Item list of D4B-[]N

  • Ratings / Performance
Operating mechanismSlow action
ctuatorTop roller plunger 12.7 dia. x 4.8
Stainless steel roller
Frequency50/60 Hz
Contact form2NC
LoadGeneral load
Ratings (AC): Non-Inductive loadResistive load: 10 A at 125 VAC/10 A at 250 VAC/10 A at 400 VAC
Lamp load (NC): 3 A at 125 VAC/2 A at 250 VAC/1.5 A at 400 VAC
Lamp load (NO): 1.5 A at 125 VAC/1 A at 250 VAC/0.8 A at 400 VAC
Inductive load: 10 A at 125 VAC/10 A at 250 VAC/3 A at 400 VAC
Motor load (NC): 5 A at 125 VAC/3 A at 250 VAC/1.5 A at 400 VAC
Motor load (NO): 2.5 A at 125 VAC/1.5 A at 250 VAC/0.8 A at 400 VAC
Ratings (DC): Non-Inductive loadResistive load: 10 A at 8 VDC/10 A at 14 VDC/6 A at 30 VDC/0.8 A at 125 VDC/0.4 A at 250 VDC
Lamp load (NC): 6 A at 8 VDC/6 A at 14 VDC/4 A at 30 VDC/0.2 A at 125 VDC/0.1 A at 250 VDC
Lamp load (NO): 3 A at 8 VDC/3 A at 14 VDC/3 A at 30 VDC/0.2 A at 125 VDC/0.1 A at 250 VDC
Inductive load: 10 A at 8 VDC/10 A at 14 VDC/6 A at 30 VDC/0.8 A at 125 VDC/0.4 A at 250 VDC
Motor load: 6 A at 8 VDC/6 A at 14 VDC/4 A at 30 VDC/0.2 A at 125 VDC/0.1 A at 250 VDC
Inrush current30 A max.
ConduitM20
Earth terminalWith ground terminal
Ambient temperatureOperating: -40 to 80 ℃ (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)25 mΩ max.
Insulation resistanceBetween each terminal of the same polarities: 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: 4 kV
Between each terminaland ground: 4 kV
Between each terminal of the different polarities: 4 kV
DurabilityElectrical: 500,000 operations min. (10 A at 250 VAC)
Mechanical: 10 million operations min.
Vibration resistanceMalfunction: 10 to 55 Hz, 0.75 mm single amplitude
Shock resistanceDestruction: 1000 m/s**2 min.
Malfunction: 300 m/s**2 min.
Pollution degree3 (EN60947-5-1)
Degree of protectionIP67
Classification of protection against electric shockClass I (with ground terminal)
Operating Force (OF)Standard value 18.63 N max.
Release Force (RF)Standard value 1.96 N min.
Pre-Travel (PT)Standard value 2 mm max.
Over-Travel (OT)Standard value 5 mm min.
Operating Position (OP)Standard value 48±1 mm
Total Travel (TT)Reference value 7 mm
Free Position (FP)Standard value 51 mm max.
Direct Opening ForceStandard value 49.03 N min.
Direct Opening TravelStandard value 3.2 mm min.
  • Dimensions

Mounting hole dimensions

  • Circuits configuration

Series

Safety Limit Switch

D4B-[]N