Limit Switch for Door
Limit switch for door is used to provide feedback when a motorized door closes to a certain position to interrupt the current action or to give feedback on closing in place for other controls to ensure the safety of the process. Door limit switches are particularly useful when implementing circuit boards to simulate the closing of a door.
Safety limit switch for door is available with different drive heads and contact blocks to meet all installation requirements. Welcome to contact us!
Model Designations: Limit Switch for Door
Item
Code
Description
①Conduit / connector size
1
Pg13.5 (1 conduits type)
2
G1/2 (1 conduits type)
4
M20 (1 conduits type) (Default)
② Built-in switch
A
1NC/1NO (slow-action type)
B
2NC (slow-action type)
③Head Mounting
Direction
F
Four mounting directions possible
(Front-side mounting at shipping)/plastic
D
Four mounting directions possible
(Front-side mounting at shipping)/metal
Door limit switch characteristics
Rating
3A 240VAC (A300)
Operating speed
0.1m ~0.5m/s
Contact resistance
25mΩ max. (initial).
Insulation resistance
100mΩ min. (at 500VDC)
Dielectric strength
AC2500V/Umip 4KV
Vibration
10-55HZ，1.5mm double-amplitude
Shock
Mechanical: Approx. 1000m/s2 (Approx. 100G’S)Electrical: Approx. 300m/s2 (Approx. 30G’S)
Ambient temperature
-10℃ ~+70℃ ( With no icing)
Ambient Humidity
< 95% RH
Life
Above 300,000
Operating frequency
30 operations/min.
Weight
About 96g(T4N-4AF-K1)
About 104G(with M20 gland)
Degree of protection
IP66 (initial)
Operating Characteristics
Key plug in force
Max.
14.7N(1,500gf)
Key pull out force
Max.
29.42N(3,000gf)
Pretravel
6±3mm
Total travel
(28mm)
Force required to have positive
Min.
58.84N(6,000gf)
Positive opening travel
Min.
10mm
Ratings Sheet
Rated voltage
Noninductive Load (A)
Inductive Load (A)
Rated voltage
Lamp Load
Inductive Load
Motor Load
NC
NO
NC
NO
NC
NO
NC
NO
125 VAC
5 (0.1)
1.5
1
0.7 0.5
3
2
2.5 1.5
1.3 0.8
250 VAC
3
8 VDC
5 (0.1)
2
5
4
3
14 VDC
5 (0.1)
2
4
4
3
30 VDC
4 (0.1)
2
3
3
3
125 VDC
0.4
0.05
0.4
0.4
0.05
250 VDC
0.2
0.03
0.2
0.2
0.03
