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MICRO SWITCH™ Commercial-Grade Toggle Switches

AT Series

005435

Datasheet

Issue 1

FEATURES

• Assemblies available as MIL-PRF-8805 qualified or the

individual basic switches with UL, CSA, and CE certification

• 2- or 3-position, momentary and maintained action

• Up to 10 SPDT precision basic switches

• Short behind-panel depth

• Choice of 1⁄4- or 15/32-inch bushings

• Silver or gold contacts

• Lever lock options

• Toggle lever and panel seal options

• Electrical connections: screw, solder, quick connect (blade),

and preleaded

DESCRIPTION

Honeywell’s MICRO SWITCH™ AT toggle switches provide

a compact multi-pole toggle switch with a long history of

successful performance, exceeding 50 years. The AT Toggle

Switch Series is available as a 1-, 2-, 3-, 4-, 6-, 8-, or 10-pole

design for a wide range of applications with a metal toggle

lever, metal bushing, and metal housing for durability. Select AT

Series are qualified to MIL-PRF-8805 for military applications.

For applications which do not require a military approved switch,

there are other AT Series switches for commercial and industrial

applications.

Options for the AT Series include panel seals and lever-to-

bushing seals. These options enhance product performance

where environments of dust or water spray could be present in

the application. Complementing the product offering, MICRO

SWITCH™ AT toggle switch assemblies are available with

individual poles (basic switches) which are UL, CSA, and CE

certified.

POTENTIAL APPLICATIONS

• Aircraft (commercial and military)

• Military ground vehicles

• Flight controls

• Vehicle panel controls

PORTFOLIO

Honeywell offers six series of MICRO SWITCH™ toggle switches

including the

TL Series, NT Series, TS Series, TW Series,

and

Series.

VALUE TO CUSTOMERS

• Multi-pole, multi-throw circuitry (up to 10 pole) for controlling

independent circuits or providing redundant circuit capability

• Flexible insulators between poles minimize electrical bridging

• MIL-PRF-8805 qualified switches

• Reduces service costs

• Extends equipment life

• Front of panel sealing available

DIFFERENTIATION

• Only manufacturer with 10-pole circuitry

• Utilizes proven and reliable snap-action switch design

Sensing and Productivity Solutions

MICRO SWITCH™ Commercial-Grade Toggle Switches, AT Series

Table 1. Specifications

Characteristic

Description

Actuators

Lever action

Mounting

Bushing

Termination

Contact material

Electrical rating

Electrical endurance

(commercial grade)

Electrical endurance

(military qualified)

Sealing

Operating temperature

Approvals

Parameter

Commercial-grade toggle switch; military-qualified toggle switches available

Standard lever, locking lever, tab lever, special lever

2- or 3-position with maintained or momentary action

Panel mount threaded bushing; Ø 1/4 in [0.25] or 15/32 in [0.47]

Ø 1/4 in [0.25 in] bushing 1-, 2-, or 3-single pole double throw (SPDT) basics;

Ø15/32 in [0.47 in] bushing 2-, 4-, 6-, 8-, or 10-single pole double throw (SPDT) basics

Solder thru-hole; solder single turret; solder double turret; screw; quick-connect blade; pre-leaded

Silver alloy or gold-plated silver alloy

30 Vdc; 125 Vac; 250 Vac (See Tables 2 & 3)

6,000 cycles min.

25,000 cycles min.

Unsealed; lever-to-bushing seal; panel seal & lever-to-bushing seal

-55 °C to 85 °C [-67 °F to 185 °F]

Available as MIL-PRF-8805; or UL, CSA, CE [individual basic switches]

Select catalog listings with FAA-PMA

Table 2.

6AT/13AT/23AT Series with MICRO SWITCH™ SM type basic switch electrical ratings (amps)

Supply voltage

(contact material)

UL/CSA/CE

rating for

SM basic switch

Sea Level

Inrush @ 30

Vdc [max.]

Resistive

Inductive

Inrush @

30 Vdc max.

Altitude 50,000 ft

Resistive

Inductive

30 Vdc

(silver contacts)

30 Vdc

(gold contacts)

125 Vac, UL/CSA

250 Vac, CE

(gold contacts)

250 Vac

(silver contacts)

–

0.5

–

2.5

0.5

–

Table 3. 60AT Series with MICRO SWITCH™ SX type basic switch electrical ratings (amps)

Supply voltage

(contact material)

UL/CSA/CE

rating for

SX basic switch

Sea Level

Resistive

Inductive

Altitude 50,000 ft

Resistive

Inductive

28 Vdc

(silver contacts)

115 Vac, 60 Hz

(silver contacts)

250 Vac

(silver contacts)

–

2.5

–

sensing.honeywell.com

MICRO SWITCH™ Commercial-Grade Toggle Switches, AT Series

Figure 1. MICRO SWITCH™ AT Series Locking Configurations

TERMINAL CIRCUIT IDENTIFICATION

(BOTTOM VIEW)

Terminal markings (electrical connections) are identified in the

order guide section with a C (for common), NC (for normally

closed), and NO (for normally open). In addition, the poles (basic

switches) of the AT toggle switch are identified with a number

marked on the end of the basic switch (i.e. a four pole switch will

have each pole (basic switch) marked 1, 2, 3, or 4 on the end of

each basic switch.

Figure 2. 6AT Series with 1PDT, 2PDT, or 3PDT

Figure 5. 62AT Series (2PDT)

2-Pole

Keyway

NC • NO • C

Figure 6. 64AT Series (4PDT)

Key-

way

NC • NO • C

C • NO • NC

Figure 7. 66AT Series (6PDT)

1-Pole

Key tab or

keyway

C • NO • NC

2-Pole

C • NO • NC

3-Pole

C • NO • NC

Key-

way

NC • NO • C

C • NO • NC

Figure 8. 68AT Series (8PDT)

Figure 3. 13AT Series with 2PDT, 3PDT, or 4PDT

NC • NO • C

C • NO • NC

2-Pole

Key-

way

C • NO • NC

NC • NO • C

3-Pole

NC • NO • C

C • NO • NC

NC • NO • C

4-Pole

NC • NO • C

C • NO • NC

NC • NO • C

Key-

way

Figure 4. 23AT Series with 2PDT, 3PDT, or 4PDT

2-Pole

C • NO • NC

Keyway

C • NO • NC

3-Pole

C • NO • NC

4-Pole

C • NO • NC

Sensing and Productivity Solutions

MICRO SWITCH™ Commercial-Grade Toggle Switches, AT Series

13AT SERIES THREE-POSITION ORDER GUIDE

Table 4. Three-Position 13AT Series

Toggle Lever Position

Standard Lever

Solder

Termination

No Suffix

Contact

(thru-hole), -T

Material

Suffix (turrent),

-T2 Suffix

(double turrent)

Silver

13AT2,

13AT2-T

Metal Tab

Lever

Solder

Termination

with -T2

Suffix (double

turrent)

Pull-to-unlock

Lever

Add Lever

Lock Suffix to

Cat. Listing

Below

No. of

Poles/

Basic

Switches

Keyway

Center

Opposite

Keyway

Lever-

Lock

Suffix

Pole 1, C-NC

Pole 2, C-NO

Both

Poles,

C-NC

Both

Poles,

C-NC

Pole 1, C-NO

Pole 2, C-NC

13AT402-T2

13AT2-

All lever

lock

types

Lever

lock

types

E, G,

B, L, N,

Lever

lock

types

Lever

lock

types

All lever

lock

types

Lever

lock

types

E, G,

B, L, N,

Lever

lock

types

Pole 1, C-NC

Pole 2, C-NO

Pole 1*, C-NO

Pole 2*, C-NC

Silver

13AT3

–

Pole 1*, C-NC

Pole 2*, C-NO

Both

Poles,

C-NC

Both

Poles,

C-NC

All Poles,

C-NC

Pole 1*, C-NO

Pole 2*, C-NC

Silver

13AT1,

13AT1-T

13AT401-T2

13AT1-

Pole 1*, C-NC

Pole 2*, C-NO

Pole 1, C-NC

Pole 2, C-NO

Pole 3, C-NO

Pole 4, C-NC

Pole 1, C-NC

Pole 2, C-NO

Pole 3, C-NO

Pole 4, C-NC

Pole 1*, C-NC

Pole 2*, C-NO

Pole 3*, C-NO

Pole 4*, C-NC

Pole 1*, C-NO

Pole 2*, C-NC

Pole 1, C-NO

Pole 2, C-NC

Pole 3, C-NC

Pole 4, C-NO

Pole 1*, C-NO

Pole 2*, C-NC

Pole 3*, C-NC

Pole 4*, C-NO

Pole 1*, C-NO

Pole 2*, C-NC

Pole 3*, C-NC

Pole 4*, C-NO

Gold

13AT26

–

Silver

13AT9-T2

–

13AT9-

All Poles,

C-NC

Silver

13AT10

–

All Poles,

C-NC

Silver

13AT8

–

13AT8-

* These positions are momentary. All other positions are maintained

C = Common Terminal; NC = Normally Closed Terminal; NO = Normally Open Terminal

See page 3 for lever lock configurations

sensing.honeywell.com

MICRO SWITCH™ Commercial-Grade Toggle Switches, AT Series

13AT SERIES THREE-POSITION ORDER GUIDE

Table 5. Three-Position MIL-PRF-8805 13AT Catalog listings

Toggle Lever Position

No. of

Poles/

Basic

Switches

Standard Lever

Solder Termination

-T2 Suffix (double

turrent)

Contact

Material

Catalog

Listing

Military

Part

Number

M8805/26-

007

Metal Tab Lever

Solder Termination

-T2 Suffix (double

turrent)

Catalog

Listing

Military

Part

Number

Pull-to-Unlock Lever

Keyway Center

Pole 1,

C-NC

Pole 2,

C-NO

Pole 1,

C-NC

Pole 2,

C-NO

Pole 1*,

C-NC

Pole 2*,

C-NO

Pole 1,

C-NC

Pole 2,

C-NO

Pole 3,

C-NC

Opposite

Keyway

Pole 1,

C-NO

Pole 2,

C-NC

Pole 1*,

C-NO

Pole 2*,

C-NC

Pole 1*,

C-NO

Pole 2*,

C-NC

Pole 1*,

C-NO

Pole 2*,

C-NC

Pole 3*,

C-NO

Catalog

Listing

13AT272-

T2-A

13AT272-

T2-M

–

Military

Part

Number

M8805/92-

006

M8805/92-

014

–

Both

Poles,

C-NC

Both

Poles,

C-NC

Both

Poles,

C-NC

Silver

13AT272-T2

–

Silver

13AT273-T2

M8805/26-

009

–

Silver

13AT271-T2

M8805/26-

13AT471-T2

005

006

13AT271-

T2-E

M8805/92-

005

All

Poles,

C-NC

Silver

13AT275-T2

M8805/26-

13AT475-T2

013

014

–

* These positions are momentary. All other positions are maintained

C = Common Terminal; NC = Normally Closed Terminal; NO = Normally Open Terminal

See page 3 for lever lock configurations

Sensing and Productivity Solutions