Home/Accessories/Consumables/Electrical/NP2-BD21 Normally Open Knob Switch/
Zhejiang CHINT Electrics Co., Ltd.
, China
The NP2 series pushbuttons are suitable for industrial control circuits with an AC frequency of 50Hz or 60Hz, a rated working voltage up to 415V and a DC working voltage up to 250V. They are used for controlling electromagnetic starters, contactors, relays and other electrical circuits. Pushbuttons with indicator lights are also applicable for indicating light signals.
Rated insulation voltage Ui (V)
415
Agreed free air heating current Ith (A)
10
Rated operating voltage Ue (V)
415
Rated working current Ie (A)
AC-15 1.9
Contact resistance
50 mΩ (initial value)
Mechanical life
Flat-top type, mushroom type, and lamp-equipped type: 1 million times; others: 100,000 times.
Electrical life
Flat head type, mushroom head type, AC 500,000 times, DC 200,000 times, the rest 100,000 times.
Degree of protection
IP40、IP65
Flat head type, mushroom head type, AC 500,000 times, DC 200,000 times, the rest 100,000 times.
2026
