LAY37-11ZS mushroom head emergency stop button opening 22mm $ 4.32 Product Type Emergency Stop Button button head diameter 15MM button color red green Installation size 22MM Front ring material nylon Rated insulation voltage 250V Contact rated operating current 15A Working voltage 250 (V) Operation mode Self-holding button Contact structure Composite button Protection method Working current 15 (A) Rated heating current 15(A) Contact resistance 0.1 () Insulation resistance 100 (M) Use temperature -25-85 (C) Product Certification ROHS Electrical life 5000 Mechanical life 10000 (times)