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B+B SmartWorx 485 Surpro w TB RS-485 High Energy Surge Protector

NOTE: Images may not be exact; please check specifications.
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Ordering Information
$163.78 
IEEE 1000-4-5: 1995 and IEEE C62.41-1991 are the recognized standards for top quality surge protectors. B&B Electronics' heavy duty units meet these specifications with three stage protection for maximum safety: a gas discharge tube feeds to a series resistor and a TVS (Transient Voltage Suppressor) for each supported line.
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