T4NS-4AF Safety-Door Switch K1

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

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