Carling Technologies, Inc.
60 Johnson Avenue, Plainville, CT 06062
Email: sales@carlingtech.com
Application Support: team2@carlingtech.com
Phone: 860.793.9281 Fax: 860.793.9231
www.carlingtech.com
ST-Series
ST-Series
SEALED TOGGLE SWITCHES
Designed to comply with MIL-DTL-3950G requirements for environmentally sealed toggle switches,
Carling Technologies® ST-Series Sealed Toggle Switch features innovative design and performance
principles sure to withstand the most demanding applications.
The ST-Series features a toggle seal composed of dynamic silicone material that bonds to the metal toggle,
pin and bushing, providing ideal sealing and protection against the environment, vibration and shock,
while withstanding extreme temperature variations. It also utilizes up to three terminal seals per pole and
an optional o-ring assures additional under panel sealing protection. All silicone seals on the ST-Series
comply with A-A-59588 for silicone rubber performance specications and, together, these features meet
the international IEC 60529 standard for sealing performance to an IP68 level.
Product Highlights:
Designed to comply with MIL-DTL-3950G
requirements
IEC 60529 IP68 sealing performance
Toggle seal bonds to toggle, pin and bushing
Complies with UL 61058-1 electrical spacing
requirements
Typical Applications:
Military Equipment
Armored Vehicles
Law Enforcement Vehicles
O-Highway Vehicles
Applications requiring stringent sealing and
performance capabilities
Download 3D CAD Files
Resources:
IGS STP
Watch Product Video
Email: sales@carlingtech.com Application Support: team2@carlingtech.com
Phone: (860) 793–9281 Fax: (860) 793–9231 www.carlingtech.com
2 |ST–Series Sealed Toggle Switch - Design Features
PINNED TOGGLE /
BUSHING
Keeps metal toggle rmly in
place and prevents rotation
TERMINAL BARRIERS
Comply with
UL-61058-1 electrical
spacing requirements
BASE SEAL CHANNEL
Perfectly ts the toggle
assembly seal decreasing
the dependence on
clamping forces and rivets
BRASS ROLLER PIN
Provides rolling metal
on metal actuation for
maximum endurance
OPTIONAL ORING
Assures additional
under panel sealing
protection
BUSHING/TOGGLE SEAL
Composed of dynamic
silicone material that bonds
to the metal toggle, pin
and bushing
RIVETS
High purity copper composite
and silver alloy materials handle
various electrical loads and
maintain low contact resistance
TERMINAL SEALS
Assure a secure seal at extreme
temperatures. Eliminates potential
for separated joints associated with
insert molded constructions
ST-Series Switch
DESIGN FEATURES
Email: sales@carlingtech.com Application Support: team2@carlingtech.com
Phone: (860) 793–9281 Fax: (860) 793–9231 www.carlingtech.com
Email: sales@carlingtech.com Application Support: team2@carlingtech.com
Phone: (860) 793–9281 Fax: (860) 793–9231 www.carlingtech.com
| 3
ST–Series Sealed Toggle Switch - General Specications
*Manufacturer reserves the right to change product specification without prior notice.
Electrical
Contact Rating 16A 12V/24V
Dielectric Strength MIL-STD-202G, Method 301
(1500 Volts RMS)
Insulation Resistance MIL-STD-202G, Method 302
(50 MegOhms, 500 VDC)
Initial Contact Resistance MIL-STD-202G, Method 307
(10 milliOhms max.)
Life Overload: MIL-DTL-3950G,
Section 4.8.11.1
Electrical Endurance and
Temperature: UL 61058-1
Momentary circuits: 25,000
operations, minimum.
Maintained circuits: 50,000
operations, minimum.
Testing ongoing to determine
maximum values.
Contacts Silver Alloy
Terminals Brass or Copper / silver plated.
Tab Terminal: ¼” quick-connect
Screw Terminal: #6-32 brass
screw and cage clamp
MIL-STD-202G, Method 211 Test
Condition A, and B: 25 lb. pull
test, two terminal bends.
Physical
Function Single/Double Pole with
Single/Double Throw functions
Operation Two/ Three position, Maintained/
Momentary circuits
Toggle Tin plated brass
Actuator Polyester PBT, UL94-V0 and
fungus resistant per ASTM G- 21
Internal Seals All internal seals are silicone per
A-A-59588-1A.
Mounting 15/32”-32 UNS-2A threaded
bushing with a keyway. A single
nut and lock washer are supplied
unassembled.
Bushing/Top Plate Zinc/aluminum die cast, with
tin plating.
Base Polyester PBT, UL94-V0 and
fungus resistant per ASTM G-21
Actuation Force Initial Actuation Forces ± 0.3 lb
(2-Pole circuits)
Angular Movement 14.5 degrees, each side of center
Mechanical
Life Mechanical Endurance: 150,000
cycles total (at 25°C)
Environmental
Temperature Operating: -40°C to +85°C
Storage: -65°C to +85°C
Vibration MIL-STD-202G: Method 204D,
Test Condition A (10 G peak,
Harmonic, 10Hz to 500Hz
sweeps, 9 hours total).
Shock MIL-STD-202G: Method 213B,
Test Condition K (30 G, half sine)
Handling Drop SAE J1455, Section 4.11.3.1, 1
meter drop in each of three
planes
Sealing MIL-STD-202G, Method 110
(sand and dust)
IEC 60529, IP68 (dust-tight and
continuous immersion in water)
Salt Atmosphere MIL-STD-202G, Method 101, Test
Condition A (96 hrs)
Thermal Shock MIL-STD-202G, Method 107, Test
ConditionA(vecyclesinair:
-55°C, +25°C, +125°C, +25°C)
Moisture Resistance, MIL-STD-202G, Method 106
Humidity (ten 24-hour stepped cycles)
Chemical Resistance No permanent loss of function,
obvious loss of sealing, distortion,
softening, embrittlement,
discoloration or corrosion after
being brushed for 10 minutes,
wetting all exposed surfaces.
Relevant chemical compatibility
documentation may be used in
place of testing.
Chemical Concentration
Gasoline 100%
Ethylene Glycol 50% in water
Ethanol/Methanol 10% in water
Diesel Fuel 100%
Email: sales@carlingtech.com Application Support: team2@carlingtech.com
Phone: (860) 793–9281 Fax: (860) 793–9231 www.carlingtech.com
4 |ST–Series Sealed Toggle Switch - Ordering Scheme
2 CIRCUIT
2 & 3, 5 & 6 Connected Terminals 1 & 2, 4 & 5
Position: 1 2 3
A ON NONE OFF
B (ON) NONE OFF
C ON NONE (OFF)
D ON NONE ON
F ON NONE (ON)
J ON OFF ON
K ON OFF (ON)
L (ON) OFF (ON)
Special Circuits
E 2,3 5 & 6 5 & 3 5 & 1
G 2,4 2 & 3, 5 & 6 2 & 3 OFF
M 2,4 (2 & 3, 5 & 6) 2 & 3
OFF
3 POLES
1 Single pole using terminals 1, 2 & 3
2 Double pole using terminals 1, 2, 3, 4, 5 & 6
4 RATING
E 16A, 12/24V
5 TERMINATION
1 .250 (6.4mm) TAB (QC)
4 Screw with Cage Clamps
B 5 .250 (6.4mm) TAB (QC). Jumper T2 to T5. No terminal at T5
E 5 Screw with Cage Clamps. Jumper T2 to T5. No terminal at T5
1
Series
2
Circuit
4
Rating
5
Termination
6
Toggle
Style
3
Poles
ST 2 E 53A 1
1 SERIES 1
ST Sealed Toggle
6 TOGGLE STYLE
Without Panel Seal Toggle Length Bushing Length
53 .561 .385
With Panel Seal (Bulk)
58 .561 .385
Notes:
1 Standard hardware is (1) inner tooth lock washer and (1) hex nut bulk.
2 Available only with 2 pole option in selection box # 3.
3 External customer supplied jumper required between terminals 2 & 4 to get
SP ON-ON-ON circuit.
4 Available with termination B and E only.
5 Available with special circuit G and M only.
Email: sales@carlingtech.com Application Support: team2@carlingtech.com
Phone: (860) 793–9281 Fax: (860) 793–9231 www.carlingtech.com
Email: sales@carlingtech.com Application Support: team2@carlingtech.com
Phone: (860) 793–9281 Fax: (860) 793–9231 www.carlingtech.com
| 5
ST–Series Sealed Toggle Switch - Dimensional Specications
PANEL CUTOUTS
TERMINALS
Dimensional Specifications: in. [mm]
Email: sales@carlingtech.com Application Support: team2@carlingtech.com
Phone: (860) 793–9281 Fax: (860) 793–9231 www.carlingtech.com
Email: sales@carlingtech.com Application Support: team2@carlingtech.com
Phone: (860) 793–9281 Fax: (860) 793–9231 www.carlingtech.com
| 7
Sales Representatives, Distributors & Company Prole
Authorized Sales Representatives and Distributors
About Carling
Founded in 1920, Carling Technologies is a leading manufacturer of electrical and electronic switches
and assemblies, circuit breakers, electronic controls, power distribution units, and multiplexed power
distribution systems. With four ISO registered manufacturing facilities and technical sales oces worldwide,
Carling Technologies Sales, Service and Engineering teams do much more than manufacture electrical
components, they engineer powerful solutions! To learn more about Carling please visit
www.carlingtech.com/company-prole.
To view all of Carling’s environmental, quality, health & safety certications please visit
www.carlingtech.com/environmental-certications
Click on a region of the map below to nd your local representatives and distributors or visit
www.carlingtech.com/ndarep.
EUROPE
MIDDLE
EAST
SOUTH
AMERICA
ASIA-PACIFIC
OCEANIA
AFRICA
MEXICO
USA
CANADA
Worldwide Headquarters
Carling Technologies, Inc.
60 Johnson Avenue, Plainville, CT 06062
Phone: 860.793.9281 Fax: 860.793.9231
Email: sales@carlingtech.com
Northern Region Sales Oce: nrsm@carlingtech.com
Southeast Region Sales Oce: sersm@carlingtech.com
Midwest Region Sales Oce: mrsm@carlingtech.com
West Region Sales Oce: wrsm@carlingtech.com
Latin America Sales Oce: larsm@carlingtech.com
Asia-Pacific Headquarters
Carling Technologies, Asia-Pacic Ltd.,
Suite 1607, 16/F Tower 2, The Gateway,
Harbour City, 25 Canton Road,
Tsimshatsui, Kowloon, Hong Kong
Phone: Int + 852-2737-2277 Fax: Int + 852-2736-9332
Email: sales@carlingtech.com.hk
Shenzhen, China: shenzhen@carlingtech.com
Shanghai, China: shanghai@carlingtech.com
Pune, India: india@carlingtech.com
Kaohsiung, Taiwan: taiwan@carlingtech.com
Yokohama, Japan: japan@carlingtech.com
Europe | Middle East | Africa Headquarters
Carling Technologies LTD
4 Airport Business Park, Exeter Airport,
Clyst Honiton, Exeter, Devon, EX5 2UL, UK
Phone: Int + 44 1392.364422 Fax: Int + 44 1392.364477
Email: ltd.sales@carlingtech.com
Germany: gmbh@carlingtech.com
France: sas@carlingtech.com
www.carlingtech.com REV_11_2016
