Alpha Technologies Micro, Micro XL, Micro XL3 UPS - Manual (Page 23)

21 017-237-B0 Rev A
5.4 Wiring the Alpha Micro
5.4.1 Tools and Materials Required
• Hammer for removing the knockouts.
• A slot head screwdriver to fit the front panel dry contact terminal blocks and a slot head screwdriver for
removing the knockouts.
• DC voltmeter.
• High strength, water-resistant tape such as duct tape.
• Battery terminal corrosion inhibitor such as NOCO Company’s NCP-2 or Sanchem Inc.’s No-Ox ID Grease
“A”.
• Maximum of 12 AWG wire for wiring the input and output terminal blocks.
• If used, 1/2" conduit connectors to fit the knockouts (7/8" diameter) and armored conduit to fit.
• Optional battery heater mats.
Procedure
1. Remove the front cover of the enclosure. Lift it up and then pull out at the bottom.
2. If necessary, remove the knockouts using a hammer and screwdriver. If you have more than one battery
cabinet installed, you will have to remove the knockouts on each shelf.
3. If used, install conduits into the openings.
4. Install the wires into the cabinet.
5. Strip the ends of the wires by 7/16" (11 mm).
Before starting, disconnect the Line power and turn off BOTH the Alpha Micro’s Battery
AND AC input circuit breakers.
If stranded wires are used for connection at the input and output terminal blocks, fer-
rules or equivalent crimping terminals must be used.
Separate the AC input power cables from the output power cables within the
Alpha Micro enclosure. Route them through separate conduit openings in the enclo-
sure.
Separate the DC Battery cable from the AC Input and Output power cables. Route the
cable through its own opening.
WARNING!