Reliance Controls PBN20 User Manual

POWER INLET BOX
CAT. NO. PBN30

30Amps, 120/240 VAC

INSTALLATION INSTRUCTIONS

IMPORTANT: Installation of this power inlet box and related wiring must be done by a qualified electrician
in compliance with all applicable electrical codes.

INSTALLING A REMOTELY LOCATED POWER INLET BOX FOR SUPPLYING
POWER TO THE POWER INLET OF A TRANSFER SWITCH OR PANEL

Installing the Power Inlet Box

Mount the power inlet box on the outside of the building in a convenient location, using the three holes
provided in the back of the cabinet. Using copper wire only and approved wiring methods run the wiring
through one of the knockouts in the cabinet to a junction box located near the transfer switch. REMOVE
KNOCKOUT FROM THE INSIDE OF THE ENCLOSURE. If using conduit, pull four color-coded
wires (AWG #10 minimum, AWG #8 maximum) -- use green for groung, white for neutral, and two other
distinguishing colors (typically black and red) for the 240V line.

Strip the wire insulation 5/8" and connect the wires in the power inlet box as follows making sure there is no
wire insulation in any terminal and the inlet terminal screws are tightened to 20 inch-pounds torque:
Hot wires to the brass terminals marked "X" and "Y".
Neutral wire to the nickel-plated neutral terminal marked "W".
Ground inlet wire to green screw terminal marked “G.”

PREPARING A CORD FROM THE GENERATOR TO THE POWER INLET BOX:

Using a 4-conductor 30 Amp. portable cord suitable for the purpose, attach a male plug matching the
configuration of the generator outlet (typically a NEMA Type L14-30P) to one end, and a NEMA Type L14-
30C connector (which will mate with the power inlet in the power inlet box) to the opposite end.

Following the wiring device manufacturer's instructions, wire the generator plug and the L14-30C
connector as follows:
Red and black wires to the brass terminals marked "X" and "Y".
White wire to the nickel-plated neutral terminal marked "W".
Green wire to the green ground terminal marked "G".

RELIANCE CONTROLS CORPORATION

2001 YOUNG COURT

RACINE, WI 53404

800-634-6155

8/13/09