Brushless Alternator

Posted on June 28, 2012

Remy International, Inc. has released its most powerful and efficient alternator yet targeting OE specialty vehicle and aftermarket applications. The Delco Remy 55SI alternator incorporates a brushless design and is available in ratings of 420 amps at 12 V to 275 amps at 24 V.

The 12 V, 420 amp model is commonly used in the aftermarket on fire and rescue trucks due to its desirable compact design and high output performance at engine idle, the company said. The 55SI is available on new fire trucks at all original equipment manufacturers (OEMs). Other applications include utility and work trucks, where it can power inverters and plug-in power tools, lights and other electrical equipment.

Delco Remy said 24 V models rated at 250 and 275 amps can also meet high electrical load demands of transit buses, mining equipment and other off-highway vehicles. The 55SI high output alternator is currently standard equipment on wheel loader and grader applications with a major off highway OEM, the company said.

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