Alpha Technologies APX Series Návod k obsluze stáhnout pdf (Strana 25)

2.7 Connecting Utility Power

CAUTION: THE FOLLOWING SHOULD BE PERFORMED ONLY BY QUALIFIED

SERVICE PERSONNEL AND IN COMPLIANCE WITH LOCAL ELECTRICAL

CODES. CONNECTION TO UTILITY POWER MUST BE APPROVED BY THE

LOCAL UTILITY BEFORE INSTALLING THE POWER SUPPLY.

NOTE: UL AND NEC REQUIRE THAT A SERVICE DISCONNECT SWITCH (UL

LISTED) BE PROVIDED BY THE INSTALLER AND BE CONNECTED BE-

TWEEN THE POWER SOURCE AND THE ALPHA POWER SUPPLY.

2.7.1 Wiring the Enclosure’s Utility Service: Photos 2.7.1.a, .b

The following does not apply to the rack-mount model (RM) or the shelf-mount

model (SM) which plug into a receptacle in the rack or enclosure. The APL model is

connected to the utility power via the APL’s terminal block (Photo 2.7.1.b).

Utility power enters the enclosure through a 0.875” diameter opening at the bottom

of the APC enclosure (Photo 2.7.1.c). The enclosure accepts a standard conduit

fitting. When used in conjunction with the PED-M metered, ground-mount

enclosure, utility power enters through a dedicated raceway.

2. INSTALLATION

NOTE: BEFORE PROCEEDING, VERIFY THAT THE UTILITY POWER IS NOT

ENERGIZED! DO NOT PLUG THE APC INTO THE AC RECEPTACLE AT THIS

TIME.

2.7.1.1 Procedure: (120VAC, 60 HZ) Photo 2.7.1.1

If the Modular Transformer Assembly (MTA) is installed it must be completely

removed during utility wiring. To remove the transformer assembly, loosen the

captive screw on the bottom of the baseplate and remove the transformer assembly.

1. Loosen the two captive screws securing the receptacle box. Turn the

receptacle box over to expose the internal wiring.

2. Route the utility conduit through the 0.875” diameter opening located at the

bottom of the APC. Secure the fitting with a locknut.

3. Connect the utility BLACK-HOT wire (120 VAC; 60 Hz) to the BLACK wire

inside the receptacle box using the existing wire nut.

4. Connect the WHITE-NEUTRAL wire to the WHITE wire inside the

receptacle box using the existing wire nut.

Ground lug for

grounding rod

Utility input

SIL-C option

60 VAC output

VSF connector

Photo 2.7.1.a

APC Bottom View

Photo 2.7.1.b

APL Wiring

NEUTRAL

wire

GROUND

wire

HOT

wire

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