PERKO 8512 - Manual

Cat No. 8511 Series Basic Switch
Cat No. 8512 Series with Key Lock
BATTERY SWITCHES
INSTALLATION AND OPERATING INSTRUCTIONS
For use with alternators and generators rated 6-32 V.D.C.
Switch rating: 315 amperes continuous, 450 amperes intermittent.
All wiring to the switch shall be performed by a QUALIFIED MARINE ELECTRICIAN, and in accordance
with the “Fire Protection Standard For Motor Craft”, N.F.P.A.* No. 302, The Standards of the American Boat
and Yacht Council, Inc.*, and the U.S.C.G.* Safety Standards for Boat Electrical Systems (33 CFR 183).
CAUTION: (1) Make sure connections at terminals No. 1 and No. 2 are of the same polarity.
(2) Always STOP engines before switching to “OFF” position. Make-Before-Break feature
allows switching between 1-all-2 positions with running engines.
Erratic operation, particularly after very long periods of idleness, can be cleared by
rapidly switching back and forth briskly several times without any load connected.
NOTE: (1) Locate switch to keep battery cables as short as possible.
(2)
If switch is to be mounted in an area subject to corrosion, it is recommended that a
liquid electrical coating be applied to the terminal connections.
(3) Mounting screw size #10 pan head or round head. Mount on a flat surface and do not
over-tighten screws to prevent deforming the switch body.
(4) Protective skirt panels can be removed as required for cable positioning when installing
the switch.
(5) Terminal stud size is 3/8 inch.
OPTIONAL ACCESSORY
Key Lock - Switch can be locked only in the “OFF” position. Key can be removed in either the locked or
unlocked position.
The following diagrams illustrate typical installations.
SEE OTHER SIDE
+
-
+
-
1 2
COM
1 2
COM
1 2
COM
Starter
DIAGRAM #1
Single Engine
2 Batteries
Switch Position
Indicates which battery
(#1, All, #2) is connected
to engine
Battery #1 Battery #2
Engine
Ground
+
-
+
-
1 2
COM
Port
Starter
DIAGRAM #2
2 Batteries
2 Engines
2 Switches
This allows either engine to
be started by either battery.
Port switch indicates which
battery(#1, All, #2) is connected
to port engine and starboard
switch indicates which
battery(#1, All, #2) is connected
to starboard engine.
Battery #1 Battery #2
Engine
Ground
1 2
COM
STBD
Starter
+
-
+
-
+
-
Port
Battery
Engine
Ground
Starboard
Battery Lighting
Battery
Port
Starter
STBD
Starter
DIAGRAM #3
2 Switches
2 Engines
2 Engine Batteries and separate
bank of lighting batteries
This allows both engines to be used
to charge lighting batteries.
Port switch indicates which battery
(Port only, Port and Lighting,
Lighting only) is connected to port
engine and the starboard switch
indicates which battery (Starboard
only, Starboard and Lighting,
Lighting only) is connected to
starboard engine.
8511INS1 1/08
* Above referenced standards can be obtained from:
1.
American Boat & Yacht Council, Inc. 2. U.S. Coast Guard 3. N.F.P.A.
613 Third Street, Suite 10 Washington, D.C. 20593 1 Batterymarch Park
Annapolis, MD 21403 (or your local C.G. office) Quincy, MA 02169
16490 N.W. 13th Avenue
Miami, Florida 33169-5707
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