Automatic Transfer Switch

The fire pump automatic transfer switch shall be electrically operated - mechanically held on both the emergency and normal power source sides, and rated for continuous duty in an unventilated enclosure. The transfer switch shall be rated and listed for fire pump service and be UL 1008 listed and FM Approved, and shall be electronically controlled for automatic switching, and capable of manual operation.

The transfer switch logic shall monitor the emergency power source for all three phases before permitting transfer from the normal source. Transfer switches monitoring only two phases of either source are not acceptable. The fire pump automatic load transfer switch specified shall include the following features:

∙Full Phase Protection – the solid state phase monitor shall be a field adjustable, close differential type, with 85-100% pickup and 75- 98% dropout. A single adjustment shall set all phases.

∙Solid state, three phase voltage and frequency monitor on generator output to prevent transfer prior to proper output parameters, adjustable 85-100% of generator voltage and frequency, with adjustable dropout of 75-85% setting.

∙Adjustable 2 to 30 minutes on retransfer of load to normal.

∙Adjustable 2 to 30 minutes cool-down timer when the generator set runs unloaded after retransfer to line.

∙Motor load decay time delay, adjustable from 1.5 to 15 seconds and operating on transfer to either source.

∙Adjustable 0.5 seconds to 5 minutes time delay on transfer to emergency source after verification of emergency source voltage and frequency.

∙Test switch to simulate normal power failure.

∙Phase loss and phase reversal monitor to initiate transfer to emergency power.

∙“Normal” and “Emergency” position LED’s.

∙Engine start contacts for generator.

∙Aux. contacts for normal and emergency positions.

∙Emergency source isolating switch/motor circuit protector, as a means of disconnect. The switch shall include aux. contacts to inhibit engine starting when switch is open.

∙Audible and visual alarm to indicate isolating switch is open, with “Normal-Silence” selector switch and re-ring function.

∙Push button to bypass retransfer to normal time delay.

The following diagnostic LED indications shall be provided:

Normal Source Voltage O.K.

Green LED

Emergency Source Voltage O.K.

Red LED

Emergency Frequency O.K.

Green LED

Transfer to Emergency Timing

Red LED

Transfer to Normal Timing

Red LED

Engine Running Unloaded Timing

Red LED

The transfer switch shall be model LX450 as manufactured by Hubbell Industrial Controls.

Page 1 Page 2
Page 2
Image 2
Hubbell LXi 2800 specifications Automatic Transfer Switch
Page 1 Page 2

LXi 2800 specifications

The Hubbell LXi 2800 is a powerful and versatile lighting solution designed to meet the demands of various industrial and commercial environments. This robust luminaire blends advanced technology with high performance, providing exceptional illumination while ensuring energy efficiency and durability.

One of the standout features of the LXi 2800 is its impressive lumen output, which can reach up to 28,000 lumens. This high light output makes it ideal for large indoor and outdoor spaces, such as warehouses, manufacturing facilities, and sports arenas. The fixture's design incorporates advanced optical technologies that deliver uniform light distribution, minimizing shadows and enhancing visibility in work areas.

The LXi 2800 utilizes LED technology, which significantly reduces energy consumption compared to traditional lighting solutions. This not only helps lower operational costs but also contributes to a smaller carbon footprint, making it an environmentally friendly choice. The LED modules are designed for longevity, with lifetimes extending beyond 100,000 hours, reducing the need for frequent replacements and maintenance.

In addition to its energy-efficient design, the LXi 2800 features robust construction that is built to withstand harsh conditions. With an ingress protection rating of IP65, the luminaire is resistant to dust and water, making it suitable for both indoor and outdoor use. The rugged housing is made from high-quality materials that endure extreme temperatures and heavy impacts, ensuring lasting performance in demanding environments.

The Hubbell LXi 2800 incorporates smart technology that allows for seamless integration with building management systems. This includes dimming capabilities and various control options that enable users to customize light levels based on specific operational needs. The fixture also supports wireless controls, making it easy to manage lighting across multiple zones or areas from a single interface.

Furthermore, the LXi 2800 is designed with ease of installation and maintenance in mind. Its lightweight construction and flexible mounting options simplify the installation process, while accessible entry points facilitate quick and efficient servicing. This focus on user experience ensures that facilities can minimize downtime and maintain optimal lighting conditions.

In summary, the Hubbell LXi 2800 is a high-performing luminaire that excels in delivering powerful illumination while being energy efficient and durable. With its advanced LED technology, rugged construction, and smart control options, it represents an ideal lighting solution for a wide array of applications in both industrial and commercial settings.
Top Page Image Contents