AF0100 Arc-Flash Relay
GENERATOR APPLICATION GUIDE
10
Littelfuse.com/ArcFlash
© 2017 Littelfuse Products
BENEFITS TO ADDING ARC-FLASH RELAYS
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Minimize damage to generator sets and reduce time to repair
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Save thousands of dollars on replacement costs when unit is completely destroyed (ROI on first arc flash
can be enough to outfit a large generator fleet with arc-flash relays)
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Add value to end users because their personnel are safer and outage occurrences are reduced
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Meet regulatory requirements
WHY CHOOSE LITTELFUSE?
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Right product for the right application—AF0100 is purpose-built for needs of generators
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Easily added as a retrofit to existing generators or to new units
– Our unique sensor design includes cabling that can be put through tight corners with no concern of
loss of signal
– Plug and play installation approach is unmatched in industry
– Fast installation and automatic configuration minimize labor costs
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Seamless to your customer (no customer interaction required with arc-flash relay)
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We are a global partner for your global business
– Global certifications
– Global distribution and fulfillment, sell in various currencies
– Global support personnel/office locations
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Isolated outputs allow for completely separate trip circuits
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Form C contacts give flexibility in connecting to any type of trip circuit, indication, etc.
Challenge
Littelfuse AF0100 Benefit
Available space limitations
AF0100 measures 90 mm (3.5”) x 128 mm (5.0”) x 60 mm (2.4”)
Two sources of energy must be disconnected:
1.
The generator
2.
Bus connecting to parallel generators or utility
Two isolated Form-C Trip outputs:
1.
Trip the generator breaker and disconnect from bus
2.
Trip the AVR to shut down the generator
Vibration from generator operation and transport to and
from jobsites
Extensive vibration proofing to ensure quality backed by
2-year warranty
Harsh environments with extreme heat and humidity
Conformally coated options available to protect circuitry from
harsh environments
