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Copyright © 2020 Sensata Technologies, Inc.
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SNAPAK
®
MAGNETIC CIRCUIT PROTECTORS
Introduction
The SNAPAK® series is a snap-acting hydraulic-magnetic circuit protector that combines power switching and accurate, reliable circuit protection in
one aesthetically pleasing package. The SNAPAK® combines the functions of three separate components: power switch, fuse and fuse holder. To the
OEM, this means that only one item has to be mounted instead of three. Less assembly is required, inventory is cut by two-thirds and greater panel
density is obtainable with less clutter. In addition, the SNAPAK® can be operated at either DC or 50/60Hz, eliminating the need to specify, order and
stock separate units. 400Hz units are also available.
To enhance front-panel aesthetics, SNAPAK® is offered with paddle and rocker handles in six attractive colors and push-pull and push-to-reset
actuators. Also offered is a variety of optional mounting hardware. The push-pull version is supplied with a black button with a white indicating band.
Orientation of the button when marked with an amperage notation must be specified when using the fourth decision table. Push-to-reset is supplied
with a contrasting color indicating shaft. In addition, SNAPAK® is offered in SPST and DPST configurations. The single pole satisfies most applications.
The two-pole version is often used for extra safety in products that utilize high voltage or where current sensing and breaking of both sides of the line is
required. Quick connect terminals are standard, UNC 8-32 or M4 screw
terminals are available as additional termination options.
Since the SNAPAK® is snap-acting, it assures immediate opening and
closing of the contacts. Its design also prevents operator “teasing” of
the contacts and minimizes arcing.SNAPAK® circuit protectors are
UL Recognized as supplementary protectors per UL STD. 1077, CSA
Certified as supplementary protectors per CSA STD. C22.2 No. 235, TUV
Approved as circuit breakers for equipment per STD. EN 60934, CCC
Approved (customer must request product be manufactured in China)
and CE Compliant. In addition, most versions are certified by UL to meet
spacing requirements of IEC 950 for basic and functional insulation for
front panel mounting.
Consult factory for details and exceptions. Typical applications include
office appliances, electronic data processing, medical equipment,
business machines, vending and amusement machines. Push-pull
versions are particularly well suited for medical instrumentation,
automotive production transfer lines and other applications where
accidental turn off is unacceptable. For those applications which do not
require circuit protection, SNAPAK® is offered in a power-switch-only
configuration.
TOGGLE ACTUATORS
Mounting Tolerance ± .005 [.13] unless noted angles: ±5°. Dimensions in
Brackets [ ] are millimeters
[12.70 ± ]
.025
.000
.500 ±
.010
.000
.355
[9.02]
.125
[3.18]
Mounting Details with Locking Ring
[12.70 ± ]
.025
.000
.500 ±
.010
.000
.222 ± 0.002
[5.64 ± 0.05]
PANEL CUTOUT SHOWN ABOVE
MAY BE MADE WITH GREENLEE
RADIO CHASSIS PUNCH #733 x 1/2” DIA.
without Locking Ring
The SNAPAK® is available with paddle handles
in six attractive colors. Engineered for safe, sure
operation, the paddle handles may be specified in
