The CHINT NP2 Series Push Buttons are a range of industrial control components designed for various applications, offering configurations like normally open (NO) and normally closed (NC) contacts.  Most models have a standard 22mm mounting size, are color-coded (Green, Red), and some include illumination for better visibility.  A mushroom head option is available for emergency stops.  These durable buttons are built for industrial use, feature a modular design for combining contact blocks, and ensure reliable electrical contacting Features of CHINT NP2 Series Push Button: Variety of Configurations: Offers a range of contact configurations (NO, NC). Standard Mounting Size: 22mm mounting diameter (most models). Color-Coded: Different colors (Green, Red) for easy identification and function differentiation. Illuminated Options: Some models offer illumination for better visibility. Mushroom Head Option: Provides a larger surface area for easier operation, especially in emergency situations. Durable Construction: Designed for industrial use. Modular Design: Contact blocks can be combined. Reliable Contacting: Designed for consistent electrical contact. Specifications of CHINT NP2 Series Push Button: Series: CHINT NP2 Mounting Hole Diameter: 22mm (standard), 40mm (NP2-BS542) Contact Types: NO (Normally Open) NC (Normally Closed) Colors: Green, Red Illumination: Available in some models (LED) Standards Compliance: IEC/EN 60947-5-1 (or equivalent) Rated Insulation Voltage (Ui): 690V Conventional Thermal Current (Ith): 10A Electrical Life: AC 5 x 10^5 operation cycles, DC 2 x 10^5 operation cycles Mechanical Life: 1 million operation cycles. Wiring: Screw-type terminals. Model: NP2-BA31: Green, 22mm, 1NO (Non-Illuminated) NP2-BA41: Red, 22mm, 1NC (Non-Illuminated) NP2-BW3361: Green, 22mm, 1NO (Illuminated) NP2-BW3462: Red, 22mm, 1NC (Illuminated) NP2-BS542: NP2-BE101: Contact block, 1NO NP2-BE102: Contact block, 1NO Uses: Industrial Control Panels: Starting/stopping machinery, signaling. Operator Interfaces: Machine control, system monitoring. Emergency Stops: Providing a large, easy-to-operate button for safety. Pilot Devices: In control circuits to activate other components. General Circuit Control: Switching electrical circuits. Benefits: Reliable Control: Provides dependable switching functionality. Easy Identification: Color-coded buttons prevent errors. Clear Indication: Illuminated versions provide visual status. Increased Safety: Mushroom head buttons for emergency stops. Versatile Application: Suitable for a wide range of industrial uses. Easy Installation: Standard mounting simplifies panel assembly. Durable Design: Withstands harsh industrial environments. Package includes: 1x CHINT ND9-22D/4 or ND16-22D/4 Indication Lights