Emerson 610 Manuel D’Utilisation

Refer to the drawings in this manual and any other drawings provided by Liebert for this installation.
Make all of the following connections:
1. AC power cables from input power source circuit breaker (RIB) to each UPS Module Input. 

Observe phase rotation.

2. AC power cables from bypass power source circuit breaker (BIB) to UPS system bypass input at 

System Control Cabinet (SCC). Observe phase rotation.

3. AC power cables from each UPS module output to SCC or to switchgear for critical load bus. 

Observe phase rotation.

4. Each UPS module must have its output neutral connected to the SCC for parallel operation. A 

minimum of a parity-sized neutral wire is recommended on this circuit for optimum system 

performance, regardless of the load configuration.

5. AC power cables from UPS System Control Cabinet (SCC) Output to critical load or maintenance 

bypass panelboard or switchgear. Observe phase rotation.

Verify that all incoming high and low voltage power circuits are de-energized and locked out 

before installing cables or making electrical connections.
All power connections must be completed by a licensed electrician experienced in wiring UPS 

equipment and in accordance with all applicable national and local electrical codes.
Improper wiring may cause damage to the UPS or injury to personnel.

All shielded cables, non-shielded cables, non-shielded control wires, non-shielded battery 

breaker control wires and non-shielded remote control wires must be housed in individual, 

separate, steel conduits. Placing multiple cables in the same conduit with other control or 

power wiring may cause system failure.

NOTE
Use appropriately sized wire as a grounding conductor. Solid metal conduit is not a suitable 

If there are line-to-neutral loads connected to the UPS output, the bypass input source must 

be wye connected and have three phases plus neutral plus ground. If the specified input is not 

available, an isolation transformer is required. Refer to 6.1 - Preferred Grounding 

Configuration, Wye-Connected Service, 6.3 - Preferred Grounding Configuration 

With Isolated Bypass and 6.4 - Alternate Grounding Configuration, Non-Isolated.
See 6.0 - Configuring Your Neutral and Ground Connections for an explanation of 

proper grounding techniques.

NOTE
If your installation includes a Maintenance Bypass Panelboard or switchgear, some or all