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.

LXi-2400 specifications

The Hubbell LXi-2400 is a premier lighting control solution designed to meet the evolving needs of both commercial and industrial environments. With its focus on energy efficiency, flexibility, and advanced technology, the LXi-2400 offers a range of features that cater to the demands of modern lighting applications.

One of the standout features of the LXi-2400 is its ability to seamlessly integrate with a variety of lighting fixtures and systems. The device is compatible with both LED and traditional lighting technologies, ensuring that it can be implemented in existing setups without requiring extensive rewiring or retrofitting. This versatility makes the LXi-2400 an ideal choice for retrofitting projects, allowing businesses to update their lighting controls while capitalizing on their current investments.

The LXi-2400 utilizes advanced wireless communication technologies, which enable it to function efficiently in a connected environment. This wireless capability allows for easy installation and configuration, minimizing downtime and disruption during the integration process. Moreover, the wireless design simplifies the control of multiple lighting fixtures, enabling users to adjust lighting levels and settings from a central location.

Energy efficiency is another critical characteristic of the Hubbell LXi-2400. The unit is designed with energy conservation in mind, employing advanced algorithms to optimize lighting schedules based on occupancy and ambient conditions. This not only results in reduced energy consumption but also leads to significant cost savings for businesses over time.

The LXi-2400 is equipped with user-friendly interfaces, allowing for intuitive control over lighting settings. Whether through mobile apps or web-based dashboards, users can easily monitor and adjust their lighting configurations. This level of control enhances user experience and contributes to better overall management of lighting resources.

In summary, the Hubbell LXi-2400 represents a cutting-edge solution for lighting control, combining compatibility, wireless capabilities, energy efficiency, and user-friendly interfaces. It is designed to adapt to the unique demands of various applications, making it a valuable investment for businesses looking to enhance their lighting systems while reducing operational costs. With the LXi-2400, users can experience a smarter, more efficient approach to lighting control.