Electromagnetic Switch YH01A DZ04 Start Stop Button Compatible with CK21 KJD17 KLD28A Product overview This electromagnetic start stop switch provides a straightforward and reliable way to control power circuits. Designed for compatibility with CK21, KJD17, and KLD28A control devices, the unit performs the essential start and stop functions required in industrial and equipment control panels. Key benefits Reliable switching: Electromagnetic operation delivers consistent contact action for predictable start and stop control. Direct compatibility: Works with CK21, KJD17, and KLD28A systems, simplifying replacement and retrofit tasks. Easy integration: Designed for common control panel use to streamline installation and reduce setup time. Durable operation: Built to handle frequent switching cycles typical of control and automation applications. Clear function: Dedicated start and stop control reduces wiring complexity and makes system operation intuitive. Important attributes Function: Electromagnetic start stop pushbutton for control circuits. Compatibility: Suitable for use with CK21, KJD17, and KLD28A control modules and panels. Size and fit: Compact form factor intended for panel mounting and common cutout arrangements. Construction and performance: Engineered for dependable electrical contact performance and consistent actuation in industrial environments. Application scope: Suitable for control panels, equipment starter boxes, and retrofit replacements where start stop control is needed. Typical use scenarios Motor control panels: Use as the main start stop interface in control cabinets for small to medium motors, enabling straightforward manual operation and circuit control. Pump and compressor control: Install in equipment starter boxes to provide reliable on off control for pumps and compressors in industrial or commercial systems. Control system maintenance and retrofit: worn or incompatible pushbuttons in CK21, KJD17, or KLD28A based control units to restore reliable start stop function without major rewiring. Models and functions Model references: YH01A, DZ04 Primary function: Electromagnetic start stop pushbutton compatible with CK21 KJD17 KLD28A control systems This switch is intended for electrical control use where a dependable start and stop interface is required.