Anatomy of a Hermetic Sealing Boot

Protects an Unsealed Switch

3 Performance Levels to Choose From

Single-piece design for toggle,

pushbutton, rocker or

rotary styles, in any color

High tear-strength silicone rubber

with actuation-compatible tactility

Patented perimeter sealing

rib seals mounting hole

and protects behind-

panel components.

No O-ring required.

Molded-in mounting

nut cross-linked to

silicone sheath exterior

Mounting hole

Bushing seal

for protection

of hermetically

sealed switches

Sealed switches require

panel cut-out

protection …

Nautilus® design protective chamber

with secondary inner seal

The cut-a-way of the boot shown contains an integral secondary seal (Fig. 1) that provides additional protection against

differential pressure (inside equipment vs atmospheric) that compresses/seals the toggle-actuator. The secondary chamber also

creates a second-barrier should the top half be breached or compromised in any way. All HEXSEALS and E-SEELS also feature

our patented flange sealing rib to prevent leakage from seeping past the mounting hole.

Two mounting methods are offered. Our standard bonded nickel-plated brass mounting-nut which replaces the switches original

exterior mounting-nut (which is discarded) and an optional method that uses a bonded aluminum IQ Concentro-Nut™ (Fig. 2) that

fits over the original switch exterior mounting nut. The Concentro-Nut option is ideal for maintenance servicing applications

where minimum switch disturbance is desirable.

The switch mounting holes on hermetically sealed switches also need environmental panel protection from possible contaminant

seepage, i.e., moisture, dust, spilled coke and coffee, etc. For this reason, APM has developed a bonded silicone rubber-stainless

steel switch bushing seal (Fig. 3). This special seal, specifically designed for hermetically sealed switches, is superior to ordinary

O-rings or washers and meets the stringent requirements of MIL-DTL-5423/16-01, MS 25196, and is a UL recognized component.

SNAP-SEALS®

E-SEELS®

HEXSEALS®

GOOD

• Commercial Grade•

• Neoprene rubber

• Two-piece design

• -65°F to +300°F (-53°C to +148°C)

temperature range

• Suitable for some commercial and

consumer applications including low-

cost appliances and tools

BETTER

• Industrial Grade •

• UL-recognized component for US &

Canada

• High tear-strength silicone rubber

(other materials available)

• Single-piece construction

• -80°F to +400°F (-62°C to +204°C)

temperature range

• Suitable for industrial and

commercial applications

BEST

• Military Grade•

• High tear-strength silicone rubber per

A-A-59588, Class 3B (other materials

available)

• Single-piece design

• -94°F to +400°F (-70°C to +204°C)

temperature range

• Suitable for military and industrial

applications

• UL-recognized component for US &

Canada

7

(See

page 20)

Fig. 1

Fig. 2

Patent No.

7,964,812

Fig. 3

Bonded

CONCENTRO-

NUT —

fits over

switch

nut

IQ-1030