Edwards Signaling 51XBRF User Manual

51XBRF Series Flashing LED Signal
Installation Sheet

Installation

Install this unit in accordance with the latest edition of the

NFPA 70 National Electrical Code and local codes. Prior to

mounting the signal base, the signal must be removed from the
base. The base can be mounted using one of the following
methods:

• Direct surface mount

• Mounted on 1/2 in. NPT conduit

• Mounted on a 4 in. octagon box

Description

The 51XBRF Series Flashing LED Signals are AC and DC
operated combination flashing LEDs with horns. They feature
optically designed polycarbonate lenses. These signals are
suitable for installation in a permanent outdoor or indoor
application. Their base allows direct surface mounting,
mounting on 1/2 in. NPT conduit, or mounting on a 4 in.
(102 mm) octagon box. A hardware kit is included with the
signals for direct surface mounting applications.

Replacement horns, flasher modules, and lenses are available
for the signals. Refer to the table at the end of these
instructions for details.

PLC compatibility

The electrical input load requirements for PLC compatible
signaling devices are listed in Table 1. Signaling devices may
be directly connected to output cards that meet the input load
requirements.

Table 1: PLC compatibility

Catalog number 51XBRF*120A 51XBRF*24D

Operating voltage 120 VAC 24 VDC

Off state leakage current 10 mA max. 10 mA max.
Continuous on current 175 mA 275 mA
Surge (inrush/duration) 50 A / 260 µs 10 A / 120 µs

The letter in this position signifies lens and LED color: A = amber, B =
blue, W = white, G = green or R = red

WARNINGS

• To prevent electrical shock, ensure that power is
disconnected before installing the signals.

• To prevent leakage and potential electrical shock, use
care when disassembling the signal to prevent tearing of
the permanently affixed gaskets provided for
weatherproofing.

To remove the signal from the base:

1. Remove the screw in the clamp ring, and then remove the
ring. See Figure 1.

2. Carefully lift the lens/lamp assembly off the base.

3. Install the signal base using one of the following mounting
procedures.

Figure 1: 51XBRF series flashing light with horn

© 2012 UTC Fire & Security. All rights reserved. 1 / 4 P/N 3101648 • REV 1.0 • ISS 03JAN12

To direct surface mount the base:

1. Remove the two knockouts for mounting screws from the
signal base bottom. See Figure 1 for the location of the
knockouts.

2. Place the mounting gasket provided in the hardware kit on
the mounting surface, and mark the center of the three
holes in the gasket onto the mounting surface. Remove
the gasket, and then drill a 3/8 in. (9.5 mm) hole at each of
the marked positions. See Figure 2.

3. Install the two rubber expansion plugs provided in the
hardware kit into the two outer holes in the mounting
surface as shown in Figure 2.

4. Route the field wiring from the required power source for
the signal (refer to its label for the voltage rating) through
the center holes in the mounting surface, mounting gasket,
and signal base.

5. Align the holes in the mounting gasket with the holes in
the signal base. Insert the two screws with lock washers
provided in the hardware kit through the mounting holes
inside the base and align the screws with the rubber
expansion plugs as shown in Figure 2.

6. Press the base firmly against the mounting surface and
tighten the screws.

To mount on a 4 in. (102 mm) octagon box (indoor
installation only):

1. Remove the two knockouts for mounting screws from the
signal base bottom. See Figure 1 for the location of the
knockouts.

2. Route the field wiring from the required power source for
the signal (refer to its label for the voltage rating) through
the center hole in the base.

3. Fasten the base to the octagon box (not supplied) by
installing the screws supplied with the box through the
holes in the base.

4. Proceed to “Wiring” below for wiring connections.

Wiring

To wire 24 VDC models:

1. Using wire nuts (not supplied), connect the signal's red
wire to the positive (+) power source lead and connect the
black wire lead to the negative (−) power source wire.

2. Neatly place the connected wires inside the base, and
then carefully position the lens/lamp assembly onto the
base.

7. Proceed to “Wiring” below for wiring connections.

Figure 2: Direct surface mounting

Note: For direct surface mounting, the 51XBRF series signals

may be installed in any position.

WARNING: To prevent leakage and a potential shock hazard,

when mounting outdoors the signal must be installed with the
lens or dome facing directly up.

To mount on ½ in. NPT conduit:

1. Route the field wiring from the required power source for
the signal (refer to its label for the voltage rating) through a
½ in. NPT conduit (not supplied) and through the center
hole in the signal base.

2. Install the base on the conduit.

3. Proceed to “Wiring” below for wiring connections.

3. Turn on the power, and then verify that the signal operates
properly.

To wire 120 VAC models:

1. Using wire nuts (not supplied), connect the signal's black
wire to hot power source lead and connect the white wire
lead to the neutral power source wire.

2. Connect the green wire to the earth ground connection.

3. Neatly place the connected wires inside the base, and
then carefully position the lens/lamp assembly onto the
base.

4. Turn on the power, and then verify that the signal operates
properly.

2 / 4 P/N 3101648 • REV 1.0 • ISS 03JAN12