ELECTRONICS: Cole Hersee Co.’s new Master Battery Disconnect Switch is ideal for all vehicle electrical systems, including heavy truck, off-road, construction, emergency vehicles, material handling, refuse collection, mining, agricultural and marine. The 75920 Master Battery Disconnect Switch cuts off all battery power from the vehicle electrical system.Cole Hersee’s Master Battery Disconnect Switch also provides an effective emergency power cutoff, protecting vehicles from tampering, theft and battery drain. The Switch also provides service personnel with an extra level of safety, protecting them from hazards, and can be locked-out or tagged-out to satisfy OSHA requirements for energy isolation.
Even when mounted in exposed locations, the 75920 Master Battery Disconnect Switch’s composite engineered polymer housing will not rust or corrode. The switch has been tested per SAE 1455 for road salt, calcium chloride and magnesium chloride, and it is waterproof to IP67. The 75920 Master Battery Disconnect Switch has a high amperage capacity of 300A at 12V dc, can be used in high side or low side applications, and fits the standard Master Disconnect Switch mounting pattern. The switch’s large red knob allows for easy operation with gloved hands, and 90-degree switch travel makes it easy to identify the switch position.
During a teardown of the iPad Air and Microsoft Surface Pro 3 at the Medical Design & Manufacturing Show in Schaumburg, Ill., an engineer showed this "inflammatory" video about the dangers of maliciously mishandling lithium-ion batteries.
Science fiction author Isaac Asimov may have the best rules for effective brainstorming and creativity. His never-before-published essay, "On Creativity," recently made it to the Web pages of MIT Technology Review.
Much has been made over the potentially dangerous flammability of lithium-ion batteries after major companies like Boeing, Sony, and Tesla have grappled with well-publicized battery fires. Researchers at Stanford University may have come up with a solution to this problem with a smart sensor for lithium-ion batteries that provides a warning if the battery is about to overheat or catch fire.
In this new Design News feature, "How it Works," we’re starting off by examining the inner workings of the electronic cigarette. While e-cigarettes seemed like a gimmick just two or three years ago, they’re catching fire -- so to speak. Sales topped $1 billion last year and are set to hit $10 billion by 2017. Cigarette companies are fighting back by buying up e-cigarette manufacturers.
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