Micro
ARE-M Series 24V Chargers, Single Phase
Installation
PM990-1070-24, Issue 12
2-10
breakers are provided in the unit, the upstream protection shall not exceed 4 times the rating of the input
breaker and shall not exceed 225A. The available fault current shall not exceed the interrupt rating list in
section 1.3.2 for the model being installed. For locations with fault currents in excess of the standard
capacity, optional high interrupting circuit breakers are required. Refer to the National Electrical Code
(NEC) to select cable sizes.
*Note: 24 inch cabinets require wire rated 75°C or greater.
2.4.3
Connecting AC Input Cables
1.
Confirm the required AC input voltage. Refer to the model number on the charger nameplate and to
the Model Designation table 1-1. See the Specifications section 1-3 for AC voltage and current
requirements.
A tag in the unit tells the factory voltage setting. If the AC input voltage must be changed, refer to the
voltage changeover instructions. Go to Chapter 6 Maintenance and locate the cabinet assembly and
schematic for the model at hand. Each schematic has a table and a connector detail drawing showing
the needed connections.
2.
Determine the AC input cable wire size. Refer to the National Electrical Code and local codes as
necessary. The 24 inch cabinets require wire rated 75°C or greater.
3.
At the charger, switch the AC input breaker to off.
4.
Locate the conduit entrance hole and install conduit as necessary.
5.
Route the AC cable from the user’s AC electrical service panel and into the charger cabinet. Strip the
cable ends and install cable lugs, as desired.
6.
Connect the cable to the AC input terminal block. See Figure 2-5 for connections. The power supply
electrical circuits are isolated from ground so the AC supply must be connected to terminals TB1-1
and TB1-2 on all models.
7.
At the user’s AC electrical service panel, set the circuit breaker to off. Connect the AC cable at the
service panel.
2.4.4
Connecting the Battery String
Routing stiff, heavy gauge battery cables can be difficult. Two people may be needed. Exercise
extreme
caution
to avoid a short circuit across the battery terminals.
WARNING
Arcing hazard
Arcing can cause equipment damage, load
interruptions, and personal injury.
Remove watch and jewelry. Use insulated tools,
appropriate arc flash personal protective
equipment, and extreme caution when working
with a battery string.
Carefully insulate unterminated battery cable
ends.
Carefully check connection polarity.
AVERTISSEMENT
Risque d'arc
Un arc électrique peut causer des dommages sur
les équipements, des interruptions de charge, et des
blessures.
Retirez vos montres et bijoux. Utiliser des outils
isolés, équipement de protection individuelle
approprié contre les arc éléctrique, et une prudence
extrême lorsque vous travaillez avec des batteries.
Isoler les extrémités des câbles de batterie.
Vérifiez la polarité de connexion.
