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Battery Switch Technical Information - How to Use PERKO Battery Switches

Using Perko Battery On-Off Switches New Concept Disconnect Switches.
There are many ways to use a Perko Battery On-Off Switch. The Fig. 9621 Series:
most obvious (and most common) is simply to use it to turn off These on-off switches offer a completely new approach to
your battery when in storage so that your battery does not drain battery switches for small boats not normally equipped with the
as quickly and is ready to go when you are. Like all Perko ability to shut off the electrical system. Their primary purpose is
products, these time-proven switches are made in the USA . All to prevent battery drain during regular periods of normal non-
switches are ignition protected. use.
But for boats with multiple engines and multiple batteries, using An entirely new mounting system (designed specifically for
multiple on-off switches (sometimes in conjunction with a small boats) makes these switches simple to install and to access
selector switch) can provide different benefits. on boats with limited space and low amperage draws. Simply
cut a 3" hole, install the cup mounted switch with 4 screws,
Example 1: Running with a selector switch in the both position attach the cables and you're off. The integral lid closes flush to
(see selector switches) may not fully charge all batteries. But the mounting surface, protects the switch from the elements
adding on-off switches to the circuit you can force the alternator and provides a clean, professional look. To turn on or off, simply
to charge the battery you want charged. open the lid, turn the easy to hold key, and close the lid. No more
If you have any questions or doubt about how to use, install or dead battery.
wire any battery switch, consult a certified marine electrician. Other series features include ignition protection, white or black
Battery disconnect switches help manage the overall use of mounting cups, panel and bulkhead mount options and a large
electrical power onboard. They are used to connect or plastic key that is retained or can be easily removed to prevent
disconnect electrical devices from the electrical system. They accidental actuation. A selector version (8521DP) is also
help to prevent battery drain during periods of inactivity. They available.
5 allow for a quick and easy way to shut down the entire electrical Heavy Duty Disconnect Switches
system in an emergency. An optional key lock helps to prevent
unauthorized use of the vessel. Fig. 9703 Series:
On-off switches are among the most popular heavy duty battery
Battery Switches and Electrical Components
Perko battery switches are designed for surface mounting. switches ever produced. Their use of the traditional Perko bolt
Standard duty disconnect switches have bright red circle makes for easy installation, whether new or as a
polycarbonate reinforced housings for safety with large easy-to- replacement. These switches can be mounted in numerous
turn black knobs. The housing of the heavy duty switches are locations, and as ignition protected switches, they can be
red fiber-reinforced polycarbonate. installed in the engine rooms of gasoline powered boats.
Models with an “Alternator Field Disconnect” feature offer These heavy duty switches are rated at up to 450 amps
protection for Non-Unitized Alternators should the switch continuous and 1,200 amps intermittent (see specifications). An
accidentally be turned to the “OFF” position with the engine alternator field disconnect feature is standard.
running.
High conductivity studs are long enough to handle more than
High conductivity studs are long enough to handle more than 1 cable and strong enough for torque needed for secure
1 cable and strong enough for torque needed for secure connections.
connections. Optional spacer ring (PN 0462DP0RED) allows for
the use of larger cables.
Medium Duty Disconnect Switches. Using Perko Battery Selector Switches.
Figs. 9601-9604 Series: There are many ways to use a Perko battery selector switch. Here
On-off switches are among the most popular battery switches is a simple way to think of the most common use.
ever produced. Their traditional Perko bolt circle makes for easy Perko battery switches are designed for surface mounting and
installation. These switches can be mounted in numerous have bright red polycarbonate reinforced housings for safety
locations, and as ignition protected switches, they can be with large easy-to-turn black knobs. Selector switches are
installed in the engine rooms of gasoline powered boats. designed with a "make before break" feature. This allows
Versions of this series of switches offer additional features such switching between the "1", the "ALL" and the "2" positions while
as alternator disconnect and key lock security. the engine is running and the switches are ignition protected.
Compact Disconnect Switches. You always want to have enough power to start your engine to
go back to shore. This begins by never leaving the dock without
Figs. 9611 and 9612 Series:
These on-off switches use the same traditional Perko footprint 2 fully charged batteries. For each trip, select one battery that
as the 9601-9604 Series. This makes for easy installation. These you will use for your engine only for that day. Set the switch to
switches can be mounted in numerous locations. And as ignition that position (either “1” or “2”), start your engine and head out.
protected switches, they can be installed in the engine rooms Once there, shut off your engine and change the switch to the
of gasoline powered boats. other position to run your accessories off the other battery. You
can start and stop your engine as need be as you spend the day
Versions of the 9611 series of switches offer additional features on the water.
such as alternator disconnect and key lock security.
Battery selector switches allow you to do everything a battery
Four removable skirt panels allow for easy cable connection disconnect switch does and in addition they permit battery
from different directions. High conductivity studs are long selection (of two or more batteries) for specific purposes
enough to handle more than 1 cable and strong enough for including starting engines, running accessories or even
torque needed for secure connections. recharging. They allow for the use of one or more batteries in

76 Visit www.perko.com for installation instructions and technical drawings on most PERKO products.
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