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propelled by increasing airport emissions regulations. A recent study by the International Air Transport Association found that switching to electric ground support equipment reduced carbon dioxide emissions by 35% to 52% per aircraft turnaround. • The construction industry is also beginning to integrate electric excavators, cranes, and other machinery. Improvements in battery energy density are fueling the growth, ensuring the equipment lasts longer and charges faster for rugged, all-day construction operations. In the past, battery-powered technology has lacked the weatherproof durability required to charge on exposed airport tarmacs or dusty construction sites. Now, as more equipment charges outdoors, design engineers need innovative battery connectors that can keep pace with durability demands. Simply selecting a connector rated for the proper amperage and voltage is just the first step. Engineers must specify ruggedized components that ensure that every stage of a connector’s day-to-day operation (while charging and while in service) is protected against environmental exposure. How to protect a connector while equipment is charging Outdoor charging introduces new concerns. Connectors must withstand weather conditions such as rain and snow, and also dust and debris. Moisture ingress can cause short circuits and safety hazards. Dust accumulation increases wear on power contacts, which can remove plating, expose copper to air, and cause poor conductivity. To ensure optimal electrical performance and a long service lifespan, outdoor connectors need to remain sealed against these hazards. “ Simply selecting a connector rated for the proper amperage and voltage is just the first step
A typical battery connector has three potential points of failure where moisture or dust can intrude. The first occurs when two connectors are mated and the equipment is charging. The point of contact between the battery-side connector and the equipment-side connector must remain tightly sealed to ensure power and signaling contacts are not exposed to the elements.
The Industrial Battery Connector from Anderson Power is one example of a DIN-compliant connector with an IP68 sealing kit. A connector’s sealing capability while mated is indicated by its Ingress Protection (IP) rating. IP ratings are an industry standard developed by the International Electrotechnical Commission (IEC) that classifies resistance to moisture or dust intrusion. IP68 is one of the highest ratings, indicating the connector is fully dust- tight and can withstand complete water submersion for up to 30 minutes at a depth of six feet while mated. For outdoor battery-powered equipment such as airport belt loaders or construction-site excavators, an IP68 rating indicates the connector provides robust protection against environmental exposure. However, this level of sealing is uncommon among the DIN VDE 0623-589-compliant connectors widely used in battery- powered material handling, construction, and ground support equipment in Europe. IP68 sealing can be achieved through kits that combine multiple sealing elements, including: • A clear voltage cover and O-ring that seals the voltage key area • A specialized receptacle shroud that seals with the plug-side O-ring • A rubber (EPDM) grommet that seals the back of the connector where the cables exit the housing Together, these components deliver IP68-rated protection while charging, reducing the risk of moisture intrusion, dust buildup, and premature contact wear while mated in outdoor environments.
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