Common Input Connections

Electrical Connections

4. Identify and make power connections with incoming cables according to Steps 5 through 10.

Common Input Connections

5.For common bypass and rectifier inputs, connect the AC input supply cables between the power distribution panel and the UPS input busbars (A-B-C terminals) and tighten the connections to 88 lb-in. (10 N-m) using the M8 bolt provided.

Dual Input Connections

6.Remove the internal links installed between the Input circuit breaker (CB1) busbars and Bypass Input busbars as shown in Figure 4.

7.For the bypass, connect the AC input supply cables between the power distribution panel and the UPS input busbars (A-B-C terminals) and tighten the connections to 88 lb-in. (10 N-m) using the M8 bolt provided.

8.For the Rectifier Input, connect AC input supply cables between the power distribution panel and the UPS input circuit breaker (A-B-C terminals).

NOTE

Both the rectifier and bypass feeds MUST come from the same utility source.

Output System Connections—Ensure Correct Phase Rotation

9.Connect the system output cables between the UPS output busbars (A-B-C terminals) and the critical load and tighten the connections to 88 lb-in. (10 N-m) (M8 bolt).

! WARNING

If the load equipment will not be ready to accept power on the arrival of the commissioning engineer, then ensure that the system output cables are safely isolated.

Observe the battery cable polarity. Be sure that the battery connector is made with the cor- rect polarity.

10. Refit all protective covers removed for cable installation

Frequency Converter Mode

If a frequency converter configuration is used, connect the AC input supply cables to the rectifier input busbars (A-B-C terminals). Torque to 88 lb-in (10N-m) for M8 bolts. Ensure correct phase rota- tion. There will not be any AC bypass supply cables to the bypass input (A-B-C terminals) and tighten the connections.

NOTE

The operations described in this section must be performed by authorized electricians or qualified technical personnel. If any difficulties arise, contact Liebert at 1-800-LIEBERT.

NOTE

For frequency converter operation, ensure that the linking busbars between the bypass and the rectifier input are removed.

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Emerson 480V, 60HZ Common Input Connections, Dual Input Connections, Frequency Converter Mode, Electrical Connections
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60HZ, 480V specifications

The Emerson 40-120KVA UPS is a high-performing uninterruptible power supply designed to ensure the reliability and continuity of critical operations across various industries. This UPS operates at 480VAC and 60Hz, making it suitable for environments where high-power demands are common.

One of the standout features of this UPS system is its modular design, which allows for easy scalability. Organizations can expand their power capacity as their needs grow, making the Emerson 40-120KVA UPS a future-proof investment. The system operates with high efficiency, minimizing energy consumption and operational costs. This is vital for data centers and industrial applications where energy management is increasingly important.

The Emerson UPS incorporates advanced digital signal processing technology, delivering real-time monitoring and control. This enhances the overall performance and reliability of the system, providing seamless power protection against voltage fluctuations, surges, and interruptions. With a total harmonic distortion of less than 5%, the UPS ensures a clean and stable power output, preserving the integrity of sensitive electronic equipment.

Another noteworthy characteristic of the Emerson 40-120KVA is its redundancy features. The system supports N+1 redundancy, allowing for one extra module to ensure uninterrupted service in case of a failure. This design offers peace of mind for critical applications, ensuring that there is no single point of failure.

User-friendliness is also a significant aspect of the Emerson UPS. The intuitive graphical user interface simplifies monitoring and management, allowing operators to assess system performance and status at a glance. Additionally, remote monitoring capabilities enable real-time tracking of system health and performance from anywhere, providing flexibility and oversight for facility managers.

The Emerson 40-120KVA UPS also meets stringent safety and compliance standards, ensuring reliable operation in demanding environments. Its robust design is suitable for a variety of applications, including information technology, telecommunications, and industrial processes. Overall, the Emerson 40-120KVA UPS stands out as a reliable, efficient, and versatile solution for businesses aiming to safeguard their critical power supply against any disruption.
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