ELECTRICAL Switches & Plugs 9
SWITCHES — TOGGLE
DEFINITIONS Lamp Load -- The amount of current (amperes) demanded or required by one or more lamp filaments for illumination. Inductive Load -- The amount of current (amperes) demanded or required by any device having an integral wire wound coil with a steel core that produces a magnetic force, e.g., operation of motors and solenoids. Poles and Throws The letters SPST , SPDT , DPST , or DPDT describe what the switch is capable of doing. SP Single Pole -- A switch device that opens, closes or changes connection in a single conductor of an electrical circuit. DP Double Pole -- A switch device that opens, closes or changes connection in two conductors of an electrical circuit. ST Single Throw -- A switch that opens, closes or completes a circuit at only one of the extreme positions of its actuator. DT Double Throw -- A switch that opens, closes or completes a circuit at both extreme positions of its actuator. An SPST (single pole, single throw) switch has one closed contact position (ON) and turns on one circuit -- the basic OFF-ON switch. A DPST (double pole, single throw) switch has two closed contact positions energizing two circuits at the same time. The circuits must be from separate sources. Because it is single throw, it has one ON position, an OFF-ON switch. An SPDT (single pole, double throw) switch has one closed contact position at one time. Because it is double throw, it can turn on two different circuits from one source, but not at the same time. It could be an ON-OFF-ON switch or an ON-ON switch. A DPDT (double pole, double throw) switch has two closed contact positions energizing two separate circuits at the same time. Because it is double throw it has two ON positions, an ON-OFF-ON or ON-ON switch.
2
TOGGLE SWITCHES — HEAVY DUTY
Cole Hersee Part No.
Center Position Function
Down Position Function
Number of Terminals 2 Screw ***
Pollak Part No.
Type Up Position Function SPST ON SPST ON SPST ON SPST ON SPST ON SPST MOM. ON SPDT ON SPDT ON SPDT MOM. ON SPDT ON SPDT ON SPDT ON SPDT MOM. ON SPST MOM. ON DPST ON DPST ON DPDT ON DPDT ON DPDT ON DPDT MOM. ON DPDT MOM. ON DPDT MOM. ON DPDT MOM. ON
Part No.
Conservative Electrical Ratings 12V (DC) - 25 amps, lamp load 12V (dc) - 35 amps, inductive load
777.0.1 777.0.2 777.1.1
OFF OFF OFF OFF OFF ON OFF ON ON OFF OFF OFF ON
34-500
125V (AC) - 15 amps 250V (AC) - 10 amps mom. = momentary
2 Screw 33-300 2 Screw 34-571 5582
2 Blade 34-579 55052-01 777.1.2 2 Blade 34-571Q 55014 777.1.3 2 Blade 34-570Q 55037 777.1.4 3 Screw 34-572 5584 777.1.5 3 Blade 34-572Q 55015 777.1.8 3 Screw 34-573 5586 777.1.10 3 Blade 34-573Q 55016 777.1.11 2 Screw 34-570 55020 777.1.13 4 Screw 34-574 5588 777.1.15 4 Blade 34-574Q 55017 777.1.16 6 Blade 34-577Q 55019 777.1.26 6 Blade 34-578Q 55018 777.1.27 6 Screw 34-578 55054-04 777.1.29 6 Screw 34-576 5590 6 Screw 34-577 5592 777.1.20 777.1.25
MOM. OFF
MOM. ON 3 Screw 34-596 55088 777.1.6 MOM. ON 3 Screw 34-575 55021 777.1.7.0
• Plastic housing with plated steel cap. • Nickel plated brass stem and mounting hardware. • Mounting stem 15/32”-32 thd. 15/32” (11.90mm) long with keyway. • Nickle plated brass handles, 11/16” (17.46mm) long, except for 777.1.2 which has a 1 - 1/2” handle • Fits panels up to 1/4” (6.35mm) thick. • Silver contacts for dependable electrical operations.
OFF
OFF OFF
MOM. ON 3 Blade 34-575Q 55033-01 777.1.12
OFF OFF OFF OFF OFF OFF
ON ON ON
MOM. ON 6 Screw 34-580 55054 777.1.28 MOM. ON 6 Blade 34-580Q 55065-03 777.1.31 ON
** Comes with mounting bracket
*** Light-Duty (10 AMPS @12 Volts)
Conservative Electrical Ratings 12V (DC) - 25 amps, lamp load 12V (dc) - 35 amps, inductive load
TOGGLE SWITCHES — NYLON HANDLE
Cole Hersee Part No.
125V (AC) - 20 amps 250V (AC) - 10 amps mom. = momentary
Center Position Function
Down Position Function
Number of Terminals
Pollak Part No.
Type Up Position Function SPST ON SPDT MOM. ON
Part No.
34-581Q 54100-01 777.3.10 34-582Q 54101-01 777.3.35
2 Blade 3 Blade
OFF
MOM. ON
• O-Ring seal between toggle and bushing • Durable nylon housing • Brass contacts
TOGGLE SWITCH — X-TRA HEAVY DUTY
Up Position Function
Center Position Function
Down Position Function
Number of Terminals
Type SPST SPST SPST SPST SPDT
Part No.
777.50.1 777.50.2 777.50.3 777.01.1 777.01.8
ON ON ON ON
OFF OFF OFF
2 screw 2 blade 3 screw * 2 Screw * 3 Screw *
ON OFF
• Chrome plated handle • 15/32” Dia. x 7/16” long mounting stem • 50 Amp rated, 6-24 Volt
MOM. ON
OFF
MOM. ON
* 1.5” Long Handle
WEATHER RESISTANT TOGGLE SWITCH 777.1.01 • Weather resistant plastic coating with O-Ring in stem. • On-Off, S.P.S.T., Rated 20 amps, 12 VDC • Knurled face nut, hex back nut & 2 - 8” leads • Chrome plated bat handle, mounting stem 15/32” Dia., 3/8” long.
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2-9-1
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