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
Image 2
Hubbell LXi-2700 specifications Automatic Transfer Switch
Page 1

LXi-2700 specifications

The Hubbell LXi-2700 represents a significant innovation in the landscape of industrial and commercial lighting solutions. As part of Hubbell's commitment to providing efficient and sustainable lighting technologies, the LXi-2700 series is designed to meet the diverse needs of modern facilities while ensuring optimal energy performance.

One of the main features of the LXi-2700 is its exceptional energy efficiency. With advanced LED technology, it offers superior lumen output while consuming significantly less power compared to traditional lighting systems. This not only reduces greenhouse gas emissions but also translates into substantial cost savings for users by lowering energy bills.

Another key characteristic of the LXi-2700 is its versatility. The fixture is available in various configurations, enabling it to adapt to different applications ranging from warehouses and manufacturing floors to retail spaces and parking lots. Its modular design allows for easy installation in both new builds and retrofitting scenarios.

The LXi-2700 is equipped with robust durability features, including weather-resistant materials and a high IP rating, making it suitable for both indoor and outdoor environments. This resilience ensures that it can withstand the rigors of demanding industrial settings while maintaining high performance over time.

In addition to its physical characteristics, the LXi-2700 incorporates advanced control technologies. Dimming capabilities and wireless control options allow users to tailor lighting levels according to specific needs, enhancing both comfort and functionality. This flexibility is particularly beneficial in environments where lighting requirements may change throughout the day.

Furthermore, the LXi-2700 supports smart lighting integration, enabling it to be part of a larger building automation system. This connectivity facilitates data collection and analysis, providing insights into energy usage patterns that can inform future decisions about facility management.

In conclusion, the Hubbell LXi-2700 exemplifies a forward-thinking approach to lighting design, merging efficiency, adaptability, and smart technologies in one cohesive product. With its array of features tailored to meet the demands of various industries, it stands out as a reliable solution for those looking to enhance their lighting systems while reducing environmental impact and operational costs.
Top Page Image Contents