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Allen Bradley Bulletin 816 816-DOV4

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816-DOV4

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The 816-DOV4 overload relay by Allen Bradley is designed for effective motor protection. It features a manual and automatic trip reset system, suitable for NEMA Size 3 applications.

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Rockwell Disclaimer: The product is used surplus. DO Supply is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because DO Supply is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Technical specifications for 816-DOV4

ManufacturerAllen Bradley
Product TypeOverload Relay
Product LineBulletin 816
Part Number816-DOV4
Weight0.63 lbs (0.28 kg)
NEMA SizeSize 3
Reset TypeManual / Auto Trip
ConstructionOpen Style
HousingOpen Frame
Voltage Rating600 VAC max
TerminalsCompression Lugs
Frequency50/60 Hz
MountingPanel / Base Mount
Trip ModeOverload Trip
Overload TypeThermal
WiringHeavy-Duty Copper Lugs
Poles3-Pole
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The Allen Bradley 816-DOV4 serves as a crucial overload relay aimed at safeguarding motor circuits. This component is rated for a maximum voltage of 600 VAC, positioning it for various industrial applications. It operates efficiently at standard frequencies of 50 or 60 Hz.

This relay is designed with thermal overload protection, which triggers the trip mode to prevent motor damage under excessive load conditions. It features a reset type that supports both manual and automatic functions, ensuring that it can be utilized in diverse operational settings.

Constructed in an open style, the relay's open frame housing allows for improved ventilation, promoting efficient heat dissipation during operation. This design is complemented by compression lug terminals, allowing heavy-duty copper wiring for robust connectivity. The 816-DOV4 is classified as a 3-pole relay, enabling it to manage three-phase systems.

For installation, it can be panel or base mounted, providing flexibility to fit various setups. The combination of these features makes the 816-DOV4 an integral part of any motor control strategy, ensuring both performance and safety.