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Help CenterT4NS-4AF Safety-Door Switch K1
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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) |
Ambient temperature |
-10℃ ~+70℃ ( With no icing) |
Ambient Humidity |
|
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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