Magnetic Circuit Protectors
Snapak® Series
Introduction
Handles
Configurations
Operating Characteristics
Delay Curves
Specifications
Hardware
Decision Tables
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T/R/PP/PR/CR/CPP/CPR Series
Hydraulic Magnetic Circuit Protectors (SNAPAK®)
INTRODUCTION
The Airpax™ 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.
55
SNAPAK® Series - Introduction
http://airpax.sensata.com
Mounting Details with Locking Ring
.500 ±
.010
.355
[9.02]
.000
.000
[12.70 ±
.025
]
.125
TOGGLE ACTUATORS
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
blue, white, red, green, yellow or black.
.222 ± 0.002
[5.64 ± 0.05]
[3.18]
.500 ±
.010
.000
.000
[12.70 ±
.025
]
PANEL CUTOUT SHOWN ABOVE
MAY BE MADE WITH GREENLEE
RADIO CHASSIS PUNCH #733 x 1/2” DIA.
Note: Mounting Tolerance ± .005 [.13] unless noted angles: ±5°.
Dimensions in Brackets [ ] are millimeters.
Single Pole, Toggle
.680 ± 0.010
[17.27 ± 0.25]
2
.125 ± 0.010
[3.17 ± 0.25]
1.125 ± 0.030
[28.58 ± 0.76]
1/2 - 32 THD
15º
ON
Paddle Handle
OFF
.031
[0.79]
1 LINE
1.375 ± 0.010
[34.93 ± 0.25]
FLAT
15º
.250
[6.35]
.375 ± 0.010
[9.53 ± 0.25]
1.715 ± 0.030
[43.56 ± 0.76]
0.500 ± 0.030
[12.70 ± 0.76]
.468 ± 0.010
[11.89 ± 0.25]
Two Pole, Toggle
.625 ± 0.010
[15.88 ± 0.25]
POLE 1
2
.125 ± 0.010
[3.17 ± 0.25]
1.125 ± 0.030
[28.58 ± 0.76]
1.304 ± 0.010
1/2 - 32 THD
15º
ON
Paddle Handle
FLAT
[33.12 ± 0.25]
POLE 2
4
.031
[0.79]
1 LINE
LINE 3
1.375 ± 0.010
[34.93 ± 0.25]
15º
OFF
.250
[6.35]
.375 ± 0.010
[9.53 ± 0.25]
1.715 ± 0.030
[43.56 ± 0.76]
0.500 ± 0.030
[12.70 ± 0.76]
.468 ± 0.010
[11.89 ± 0.25]
SNAPAK® Series - Handles
SNAPAK® (T/R/PP/PR CR/CPP/CPR)
56
ROCKER HANDLES WITH ILLUMINATION
SNAPAKs are offered in single and two pole rocker styles in a choice
of black, white or gray body colors. Handle color in non-illuminated
types may be black, red, white or orange. Neon or light emitting
diode (LED) illumination may be specified with a variety of options.
SNAPAK
®
circuit protectors with a second pole are available in
paddle handle, push-pull, push-to-reset and rocker handle versions.
.710 ±
.010
.000
[18.03 ±
.025
]
.000
Mounting Detail
DIM. A
(SEE TABLE)
Rocker, Single Pole
0.125 ± 0.010
[3.18 ± 0.25]
1.375 ± 0.010
[34.93 ± 0.25]
0.030 ± 0.325
[8.26 ± 0.76]
2
0.680 ± 0.010
[17.27 ± 0.25]
0.770 ± 0.010
[19.56 ± 0.25]
1.125 ± 0.030
[28.58 ± 0.76]
0.031
[0.79]
0.250
[6.35]
1.560 ± 0.010
[39.62 ± 0.25]
1 LINE
ON
OFF
0.972 ± 0.010
[24.69 ± 0.25]
0.375 ± 0.010
[9.53 ± 0.25]
1.840 ± 0.030
[46.74 ± 0.76]
0.093 ± 0.010
[2.36 ± 0.25]
0.400 ± 0.010
[10.16 ± 0.25]
HANDLE GUARDS
The SNAPAK circuit protector is available with an optional
handle guard as an integrated part of the snap-in mounting
design. Available for rocker actuators, the guard helps in
providing protection from accidental “turn-off.” Please refer to
the SNAPAK
®
Part Number Decision Tables; fourth decision.
®
Handle Guards, Single Pole
0.305 ± 0.010
[7.75 ± 0.25]
1.047 ± 0.010
[26.60 ± 0.25]
Handle Guards, Two Pole
0.305 ± 0.010
[7.75 ± 0.25]
1.047 ± 0.010
[26.60 ± 0.25]
57
SNAPAK® Series - Handles
http://airpax.sensata.com
FRONT SNAP-IN MOUNT (STD)
Panel Thickness
Dimension “A”
0.125
[3.18]
1.460
[37.08]
0.093
[2.36]
1.420
[36.07]
0.062
[1.57]
1.385
[35.18]
1.329 ±
.010
.000
[33.76 ±
.025
]
.000
Mounting Detail
Note: Tolerance for Mtg. ± .005 (.13)
DIM. A
(SEE TABLE)
Rocker, Two Pole
0.125 ± 0.010
[3.18 ± 0.25]
1.375 ± 0.010
[34.93 ± 0.25]
0.030 ± 0.325
[8.26 ± 0.76]
1.304 ± 0.010
[33.12 ± 0.25]
POLE 1
2
POLE 2
4
1.394 ± 0.010
[35.41 ± 0.25]
1.125 ± 0.030
[28.58 ± 0.76]
0.031
[0.79]
0.250
[6.35]
1.560 ± 0.010
[39.62 ± 0.25]
1 LINE
LINE 3
ON
OFF
0.972 ± 0.010
[24.69 ± 0.25]
0.375 ± 0.010
[9.53 ± 0.25]
1.840 ± 0.030
[46.74 ± 0.76]
0.093 ± 0.010
[2.36 ± 0.25]
0.625 ± 0.010
[15.88 ± 0.25]
0.400 ± 0.010
[10.16 ± 0.25]
Illuminated Handle
Single Pole
Two Pole
2
LOAD
2
4
LOAD
1 LINE
LINE
1 LINE
LINE 3
LINE
RED (+), BLACK(–)
7.00 ± 0.50
[177.8 ± 12.7]
RED (+), BLACK (-)
7.00 ± 0.50
[177.8 ± 12.7]
Note: Tolerance ± .005 [.13] unless noted angles: ±5°. Dimensions in Brackets [ ] are millimeters.
SNAPAK® Series - Handles
SNAPAK® (T/R/PP/PR CR/CPP/CPR)
58
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