American Power Conversion SYMSTRF-PD, SYMINIF Output Wiring Installation, Output Wiring Procedure

Chapter 4 - Electrical Requirements and Procedures

Output Wiring Installation

νVerify that all incoming line voltage (utility power) and low voltage (control) circuits are de-energized, and locked out before installing cables or making connec- tions, whether in the junction box or to the SymmetraTM Power Array.

νAlways verify that all battery modules are removed and all battery extension frames are disconnected from the Power Array before installing any wiring to the Power Array.

νRead this chapter completely before installing any wir- ing to the Power Array.

Output Wiring Procedure

1.Refer to Fig 4-10. Remove the four screws holding the output wiring entry panels to the rear of the Power Array. Remove only the screws indicated in the illustration. Set the screws and both panels aside temporarily.

Fig. 4-10Removal of Output Hardwiring Panels

2.Pull wire through conduit, leaving about 20” of wiring extending from the end. Install a flexible metal conduit con- nector to the end of the conduit. Using appropriate tools, remove the knockout in the entry panel. Feed the wires through the entry panel, and attach the flexible metal con- duit connector to the panel. Strip 1/2” of insulation from the end of each of the incoming wires.

3.Use the output wiring configuration that corresponds to the output load voltage. See figures 4-8 and 4-9. Connect

output wiring to the output terminal connections. Make sure there are no loose strands and that the terminal connection screws are sufficiently tightened.

Grounding Electrode (Optional)

If installing an optional grounding electrode, use the 1/2” knockout in the output wiring panel, and attach the ground- ing electrode to the output terminal block ground connec- tion. (Use a strain relief clamp, or a flexible metal conduit connector.) Connect the local grounding electrode to the nearest effective ground, such as building steel, a metal water pipe, or other appropriate grounding structure.

See NEC code 250-26 and Table 310-16.

4.Carefully fold excess output wiring into the terminal com- partment. After the electrical wiring test/checklist is com- pleted (end of this chapter), replace the output wiring access panels.

Power Distribution Units (Optional)

An optional power distribution unit provides output power receptacles and corresponding circuit breakers. The MiniFrame PDU provides one L6-30R receptacle (208V), two 5-15R receptacles (120V), and two L14-30R receptacles (120V/240V). The MasterFrame PDU provides three L6-30R receptacles, four 5-15R receptacles, and three L14-30R re- ceptacles. The PDU panel for both frame sizes are equipped with a panel circuit breaker.

L14-30R	5-15R
	Receptacles
Receptacles
L6-30R	Panel Circuit
Receptacles
	Breaker
	Fig. 4-11MiniFrame PDU Panel

L14-30R

Receptacles

5-15R

Receptacles

L6-30R

Receptacles

Panel

Circuit

Breaker

Fig. 4-12MasterFrame PDU Panel

4-6