Safety Sentry
™
Electronic Breakaway Switch
P-616
819-0454
Installation Instructions
Parts List
Introduction
Mounting hardware included with the Safety Sentry
Breakaway Switch kit:
Qty Part
1 Chain/lanyard with snap hook
1 2-1/2" Bolt
1 1-5/8" Sleeve
2 Eyebolts
5 Lockwashers
5 Nuts
Failure to follow these
instructions may result in product damage,
equipment damage, and fatal injury to
personnel.
The main purpose of any trailer breakaway switch is
to automatically engage the electric trailer brakes
should the trailer become detached from the towing
vehicle. In addition to this basic function, your Safety
Sentry Breakaway Switch will:
1. Test the battery under load for approximately 10
volts minimum.
2. Illuminate its green light to indicate that the trailer
battery and breakaway switch are
operating properly.
Warner Electric • 800-825-9050 P-616 • 819-0454
2
Mounting
Figure 1 - Typical Layout
Note the general layout in Figure 1 as you proceed
through the mounting instructions. Refer to the
parts list, page 2.
1. Drill a 9/32-inch hole for an eyebolt in a
convenient structural member on your towing
vehicle chassis near the hitch (not on the hitch
assembly).
Mount the eyebolt, with the eyebolt pointing
toward the breakaway switch, using two
1/4-inch nuts with lockwashers. Tighten
securely. See Figure 2.
2. Position the breakaway switch on a horizontal
or vertical surface of the trailer tongue or Aframe. The pin in the switch must point
towards the towing vehicle.
The switch must be positioned far enough
forward so the lanyard will reach the towing
vehicle.
It must also be set back far enough to allow an
eyebolt to be mounted to the tongue in front of
the switch.
3. Drill a 9/32-inch hole through the tongue for
mounting the switch.
Insert the furnished metal sleeve into the
mounting hole in the switch. The sleeve allows
the switch to pivot so the lanyard stays aligned
with the towing vehicle.
Bolt the switch to the tongue using the bolt,
nut, and lockwasher provided.
Figure 2
Towing Vehicle Eyebolt Mounting
Warner Electric • 800-825-9050 P-616 • 819-0454
3