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Sensing and Control
Honeywell Inc.
11 West Spring Street
Freeport, IL 61032 www.honeywell.com/sensing
Sensing and Control
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Manual Switches ET Series
Magnetically Held Toggle Switches
70HoneywellSensingandControl11-800-537-6945USA1F1-815-235-6847International11-416-293-8111Canada
PRINCIPLE OF OPERATION
A holding coil in ET toggle switches re-
places mechanical holding mechanisms
to maintain the toggle in an operate posi-
tion. The toggle is released by breaking
the coil circuit.
When the hold in coil circuit is open, the
ET functions as a momentary contact
switch. When the coil is energized
(throughremotecontacts),thetogglelev-
erwillbeheld(maintained)intheoperate
position. De-energizing the coil causes
the lever to snap back to the unoperated
position. The lever can also be released
manually (overridden).
Note:Thesolenoidhasahold in capacity
only. It will not pull the toggle lever into an
operating position from an unoperated
position.
Two position. The illustration above
shows the operating sequence for an ET
with one SPDT circuit. (1) circuit closed
manually; (2) energized solenoid holds
switchcircuit closed; and(3)remotecon-
trol breaks solenoid circuit, releases the
toggle, and opens the switch circuit. (In
ETs with two SPDT circuits, both circuits
transfer when the lever is operated.)
ELECTRICAL RATINGS
Amperage
Sea Level (Sealed) 65,000 ft
Rating
Code Voltage Res. Ind. Motor Res. Ind. Motor
A28DC42.54424
B28DC43442.54
C 28 DC 7 2 — 5 1.5 —
FEATURES
1
Most listings qualified to MIL-S-5594
1
Environment-proof sealing
1
2 and 3 position magnetically main-
tained toggle action
1
Standard, tab, and pull-to-unlock
levers
1
Turret, leadwire, and screw terminals
1
Temperature range: –85°Fto+160°F
(–65°Cto+71°C)
Three position. ETs with two SPDT cir-
cuitshaveamagneticholdincapabilityin
bothdirectionsfromcenter.Whenthelev-
er is in the center position, the circuitry is
as shown in the illustration above. When
the lever is moved to one extreme posi-
tion, switch (A) circuit is transferred and
switch(B)circuitisunchanged.Intheoth-
er extreme position, switch (B) circuit is
tranferred while switch (A) circuit is un-
changed.
Manual Switches ET Series
Magnetically Held Toggle Switches
HoneywellSensingandControl11-800-537-6945USA1F1-815-235-6847International11-416-293-8111Canada71
Toggles
Standard Pull-to-unlock Push-to-unlock Tab
Terminals
Turret Leadwire Screw
TOGGLE TYPES
Standard — Tapered matte finish stain-
less steel.
Pull-to-unlock — Prevents accidental ac-
tuation;mustbepulled out to change po-
sitions.
Push-to-unlock — Guards against acci-
dental operation. The toggle must be de-
pressedapproximately.100 inch before it
can be moved to either extreme position.
Energizing the coil causes the extreme
positionstobeelectricallymaintainedun-
til the coil circuit is broken.
Tab — Paddle-shaped clear anodized
aluminum tab.
TERMINAL TYPES
Turret — Plated for easy solder connec-
tion of up to #14 wire.
Leadwire — No. 20 wire per MIL-W-5086,
markedperMIL-W-5088. Standard length
of six feet. Leadwire ends are stripped.
Other material and lengths can be fur-
nished. Contact your nearest MICRO
SWITCH Sales Office for further informa-
tion.
Screw–Four 48UNF x .188 (ref.) long
round head screws with lockwashers.
Separated by molded phenolic barriers.
CIRCUIT OPERATION
Turret Terminals Leaded Terminals
Two-Position Toggle Three-Position Toggle Three-Position Toggle
Circuit Made With Toggle At: Circuit Made With Toggle At: Circuit Made With Toggle At:
Keyway* Opposite Keyway* Center Opposite Keyway* Center Opposite
Circuitry Position Keyway Position Position Keyway* Position Position Keyway*
SPDT 1-3 1-2 — — — — — —
DPDT 1-3, 4-6 1-2, 4-5 1-3, 4-5 1-2, 4-5 1-2, 4-6 1-2, 4-5 1-3, 4-5 1-3, 4-6
* These positions are magnetically held when coil is energized, and momentary when coil is not energized.
CIRCUIT OPERATION
Screw Terminals
Three-Position Toggle
Circuit Made With Toggle At:
Keyway* Center Opposite
Position Position Keyway*
1-2 MADE 1-2 OPEN 1-2 OPEN
3-4 OPEN 3-4 OPEN 3-4 MADE
* These positions are magnetically held when coil is
energized, and momentary when coil is not
energized.
CIRCUITRY Single-pole Double-pole
Double-throw Double-throw
Manuals
Manual Switches ET Series
Magnetically Held Toggle Switches
72HoneywellSensingandControl11-800-537-6945USA1F1-815-235-6847International11-416-293-8111Canada
ET ORDER GUIDE
Max. Weight Max.
Dimension A
Circuitry
No. of
Toggle
Positions Lever Type Terminals
Elec.
Rating
Code
Page 72 grams ounces mm inches Catalog Listing
2 Standard Leadwire B 241 8.5 51,6 2.03 25ET61-6 (M5594/1-1)
(90Nfrom
Keyway)
2 Standard Solder Turret B 113 4.0 47,5 1.87 25ET61-T (M5594/1-2)
2 Standard Screw B 113 4.0 61,2 2.41 25ET61-S (M5594/1-3)
2 Tab Lever Leadwire in B 241 8.5 51,6 2.03 25ET62-6 (M5594/1-4)
line with
Keyway
SPDT 2 Standard Leadwire B 241 8.5 51,6 2.03 25ET63-6 (M5594/1-5)
(180Nfrom
Keyway)
2 Standard Leadwire B 241 8.5 51,6 2.03 25ET64-6 (M5594/1-6)
(90Nfrom
Keyway)
2 Standard Solder Turret A 113 4.0 47,5 1.87 26ET61-T (M5594/2-1)
2 Standard Solder Turret A 113 4.0 47,5 1.87 26ET65-T (M5594/2-2)
DPDT 3 Standard Solder Turret C 113 4.0 58,7 2.28 27ET61-T (M5594/3-1)
3 Pull-to-unlock Solder Turret C 113 4.0 58,7 2.28 27ET61-T-E (M5594/6-1E)
3 Push-to-unlock Solder Turret C 113 4.0 58,7 2.28 27ET51-T
3 Pull-to-unlock Solder Turret C 113 4.0 58,7 2.28 27ET61-T-M (M5594/6-1M)
MOUNTING DIMENSIONS (For reference only)
Standard and tab toggle levers
Pull-to-unlock toggle lever
Push-to-unlock toggle lever
LOCKING CONFIGURATION
EM
Locked In
Center Position
Locked Out Of
And Into Extreme
Position (Opposite
Keyway)
Manual Switches
Toggle Accessories
HoneywellSensingandControl11-800-537-6945USA1F1-815-235-6847International11-416-293-8111Canada73
TOGGLE LEVER SLEEVES
Colored plastic lever sleeves are ordered
by adding suffix letters which denote the
desired color to the basic catalog listing.
ORDER GUIDE
Color Suffix
Basic
Toggle Switch Type Catalog Listing Blue Black White Green Yellow Red
AT with Short lever 15PA90-1 BL BK W G Y R
1⁄4Nbushing Long lever 15PA90-3 W R
AT, TL, TK, TS, TW, ET with 15⁄32N15PA90-4 BK W R
bushing and standard lever BL G Y
Example:15PA90-1R
Red sleeve fits 1⁄4in. bushing AT’s with
short levers.
DECORATIVE MOUNTING NUT ORDER GUIDE
Style Description Bushing Size Catalog Listing
A
Knurled Nut 1⁄4N19PA5-1
(Bright Nickel) 15⁄32N19PA6-1
(Black Finish) 15⁄32N19PA6-4
B
Knurled Capnut 15⁄32N19PA6-2
(Bright Nickel)
C
Hex Nut 1⁄4N19PA5-3
(Black Finish)
15⁄32N19PA6-3
D
Tapered Nut 15⁄32N19PA6-5
(Chrome Finish)
E
Hex Nut 1⁄4N19PA104-TW
(Chrome Finish)
PANEL SEAL
Forusewith15⁄32 in.bushingtoggleswitch-
es,thiscorrosionresistantsteelcupwash-
erhasasiliconeelastomerliningandkey-
ing tab for sealing the bushing keying
slot. Use in panels up to .125 in./31,8 mm
thick.
Catalog
Listing Military No.
15PA87 —
15PA195-TL M5423/16-01
15PA258 M5423/16-01
LEVER/PANEL SEAL
Forusewithstandardlevertoggleswitch-
es with15⁄32 in. bushings. Consists of a sil-
icone elastomer seal boot and panel seal
bonded to a hex nut.
Catalog Listing 10PA4
Manuals
