Emerson 115-480, 115-120, 15-90KVA, 115-208, 115-50/60HZ, 115-600V

* External Overcurrent Protection by Others

Operation

10.7De-Energize Liebert® APM™ Without Maintenance Bypass Cabinet

! CAUTION

This procedure will remove power from the critical bus.

To de-energize the APM:

1.On the UPS control panel, press and hold the INVERTER OFF button for 2 seconds.

2.Open all battery circuit breakers(s) including internal battery breaker (if applicable).

! CAUTION

Performing the next step will shut down the critical load.

3.Open the UPS output circuit breaker(s).

4.Open the UPS input circuit breaker and bypass circuit breaker (dual input systems only).

5.Allow 5 minutes for all DC circuits and capacitors to fully discharge.

6.Use a digital multimeter to verify there is no AC or DC voltage present at the UPS input, output and bypass bus bars.

Figure 64 Typical configuration for single UPS

*System AC Input 4-Wire + GRD See Note 5

Static Bypass

UPS Cabinet

Battery

Output Busbar

AC Output

208V

4-Wire + GRD

Notes

1.Install in accordance with national and local electrical codes.

2.A neutral is required from the system AC input source.

A full-capacity neutral conductor and grounding conductors are recommended.

3.UPS system input and output cables must be run in separate conduits.

4.Control wiring must be run in separate conduits.

5.Customer must supply shunt trip breaker with 120V coil.

Field-Supplied Wiring

UAM01000

Rev. 2

10.8Switching the Liebert® APM™ from Parallel to Single UPS Operation

10.8.1Procedure to Take UPS1 Offline While Leaving UPS2 Online

The procedure below is used to switch the system from parallel to single UPS operation.

NOTICE

Risk of improper switching. Can cause damage to connected load.

115-600V, 115-208, 115-120, 115-50/60HZ, 115-480 specifications

The Emerson 15-90KVA series is a robust and versatile power solution designed for various applications including commercial, industrial, and data center operations. Operating at voltage ranging from 115 to 480 volts, and supporting frequencies of either 50 or 60 Hz, this series is engineered to meet diverse power requirements.

One of the standout features of the Emerson 15-90KVA is its exceptional reliability and performance under varying load conditions. This power system incorporates cutting-edge technologies that enhance operational efficiency while minimizing downtime. The robust design of the system enables it to maintain optimal performance even in harsh environmental conditions, providing power continuity and safeguarding critical operations.

The Emerson 15-90KVA is equipped with advanced protection mechanisms that ensure the safety of connected equipment. These include overload protection, short-circuit protection, and thermal protection systems, which work together to prevent potential damage from power surges or faults. Moreover, the unit features a user-friendly interface that facilitates easy monitoring and control, enabling operators to track performance metrics and manage power supply effectively.

Another significant characteristic of this power series is its modular design, allowing for scalability and flexibility. Users can easily add or remove capacity based on changing power demands without the need for extensive system overhauls. This scalability makes the Emerson 15-90KVA ideal for growing businesses that require adaptable power solutions.

Energy efficiency is a focal point for the Emerson power series. Utilizing advanced power electronics and intelligent control algorithms, the system minimizes energy losses, ensuring that more power is available for direct usage. This not only reduces operational costs but also aligns with growing sustainability initiatives by lowering the overall carbon footprint.

In summary, the Emerson 15-90KVA series is a high-performance power solution characterized by its reliability, advanced protection features, modular scalability, and energy efficiency. Its versatility across multiple voltage levels and frequency options makes it suitable for a wide range of applications, solidifying its position as a preferred choice in the industry. Whether for industrial facilities, data centers, or commercial spaces, the Emerson 15-90KVA is designed to meet and exceed power demands effectively and efficiently.

Emerson 115-480, 115-120, 15-90KVA De-Energize Liebert APM Without Maintenance Bypass Cabinet

Models: 115-600V 115-208 115-120 115-50/60HZ 115-480 15-90KVA