Emergency Stop Switch – Building a Strong Safety Foundation for New Energy Equipment

Driven by the "dual carbon" strategy, the three major sectors of energy storage, EV charging piles, and energy equipment are developing rapidly. In 2025, China's newly installed capacity of new-type energy storage reached 66.43 GW, accounting for more than half of the global total. The number of EV charging piles exceeded 20 million units, with accelerated deployment to county and township areas. A large number of equipment are installed in harsh outdoor environments with salt mist, extreme temperatures, and dust, where ordinary switches are prone to failure. Metal push button switches and emergency stop switches, as core components for equipment start/stop and fault reset, have become an indispensable "safety line".

Energy storage containers, EV charging piles, and inverter cabinets widely adopt metal push button switches with IP67 or higher protection rating (such as the Sugami DS-428 series and Huanli metal switches), featuring full dust-tightness and resistance to temporary immersion. The housing is made of 304/316 stainless steel or anti-corrosion alloy, and passes the 96-hour neutral salt spray test, effectively resisting coastal salt mist, industrial dust, and wide temperature shocks (-40°C to +85°C).

The emergency stop switch prioritizes not convenience, but absolute safety, absolute reliability, and absolute controllability as its core principles. Energy storage cabinets and EV charging piles must be equipped with emergency stop buttons that feature forced opening and mechanical self-locking, ensuring that the main circuit is disconnected within milliseconds in case of thermal runaway or failure. For high safety level applications, dual-channel redundant contacts are used to meet SIL 3 / PL e requirements.

(1) Energy storage / inverter: Each cabinet is equipped with an IP67 metal button for start/stop and reset, and an emergency stop switch for rapid power cutoff.
(2) EV charging pile: The metal button is weather-resistant and anti-aging; the emergency stop switch cuts off the output within 100 ms to prevent accidents.
(3) Energy equipment: Photovoltaic inverters, combiner boxes, etc., rely on metal push button switches for reliable human-machine interaction.

Shanghai Yongxing Electronic Switch Co., Ltd. focuses on push button switches and emergency stop switches, with core advantages of high protection, high current rating, and corrosion resistance. We offer quick prototyping and stable delivery to support the safe operation of new energy equipment.