Features: _x000D_ 1. The mounting hole diameter is 22mm, easy to install and remove _x000D_ 2. This switch has self-locking knob function, not easy to damage and long service life. _x000D_ 3. The sliver alloy connecting part has good performance which can make sure the stable working _x000D_ 4. Suitable for the electromagnetic starter of AC 50Hz, voltage 380V and below, DC 220V and below, actor control in contactors, relays and other electrical circuits _x000D_ 5. Adopt 1 open 1 close contact form, easy to use _x000D_ _x000D_ Specification: _x000D_ Condition: 100% Brand new _x000D_ Model: BEM38-11X/21 _x000D_ Switch Rated Voltage: 440V _x000D_ Insulation Voltage (Ui): AC660V _x000D_ Working Current (Ith): 10A _x000D_ Number of Gears: 2 gears _x000D_ Function: Self-Locking knob _x000D_ Contact Form: 1 Open 1 Close _x000D_ Mounting Hole Diameter: 22mm _x000D_ Rated Heating Current: 15A _x000D_ Contact Material: Silver alloy _x000D_ Contact Resistance: 50 _x000D_ Insulation Resistance: 50M _x000D_ Mechanical Life: 5 Million times _x000D_ Electrical Life: 500,000 Times _x000D_ Product Size: Approx. 75 x 35 x 29mm / 3 x 1.4 x 1.1in _x000D_ _x000D_ Package List: _x000D_ 10 x Self-Locking Knob