K

K–37

Dimensions are shown: Inch (mm)

Specifications and dimensions subject to change

www.ittcannon.com

C&K HB Series

Single Pole Standard Precision Snap-acting Switches

Models Available

Features/Benefits

Typical Applications

Specifications

CONTACT RATING: From low level* to 20 AMPS @ 480 V AC;

see ELECTRICAL RATING option section for complete listings.

ELECTRICAL LIFE: 150,000 cycles at 20 AMPS @ 250 V AC.

consult Customer Service Center for typical life at other ratings.

INSULATION RESISTANCE: 1,000 M ohm min.

DIELECTRIC STRENGTH: 1,500 Vrms min. @ sea level.

OPERATING TEMPERATURE: –67ºF to 302ºF (–55ºC to 150ºC).

OPERATING FORCE: From 4 oz. to 26 oz. max. at actuator

button available.

MOUNTING SCREWS: Torque 3 in/lbs max.

(Note: Exceeding 3 in/lbs torque may change operating

characteristics and increase the possibility of cracking

switch case).

TERMINAL SCREWS: Torque 4 in/lbs max.

PANEL MOUNTING BUSHING: Torque 4-6 in/lbs max.

DEGREE OF PROTECTION: IP65; Dust-proof, water splash and

dew condensation.

* Low Level=conditions where no arcing occurs during switching, i.e., 0.4 VA max. @

20 V AC or DC max.

Materials

SWITCH HOUSING: Heat resistant/electrical grade phenolic.

INSERTS: Brass alloy.

ACTUATOR BUTTON: Moisture resistant phenolic.

SPRING: Copper alloy.

PIVOT: Brass alloy.

MOVABLE CONTACTS: Gold alloy for ratings 1 AMP or less.

Fine silver for ratings greater than 1 AMP and motor load

ratings less than 1/2 HP @ 125 V AC. Precious metal alloy

for motor load ratings 1/2 HP @ 125 V AC or greater.

STATIONARY CONTACTS: Gold alloy for ratings 1 AMP or less.

Fine silver welded to copper base for ratings greater than

1 AMP and motor load ratings less than 1/2 HP @ 125 V AC.

Precious metal alloy on copper base for motor load

ratings 1/2 HP @ 125 V AC or greater.

TERMINALS: Brass alloy, bright tin plated.

NOTE: For the latest information regarding RoHS compliance, please go

to: www.ittcannon.com/rohs.

NOTE: Specifications and materials listed above are for switches with standard options.

For information on specific and custom switches, consult Customer Service Center.

Build-A-Switch

To order, simply select desired option from each category and place in the appropriate box. Available options are shown and

described on pages K-38 thru K-43. For additional options not shown in catalog, consult Customer Service Center.

H

B

Series

Operating Force

Contact Separation

2

.020"

1

.010"

4

.040"

7

.070"

Electrical Rating

0.25 A, 250 V DC; 0.5 A, 125 V DC

250 V DC; 0.5 A, 125 V DC; 3/4 HP,

125 V AC; 1 1/2 HP, 25O V AC

1/4 HP, 125 V AC; 1/2 HP, 250 V AC

250 V DC; 0.5 A, 125 V DC; 15(10) A,

380 V~ 185

Actuator

Terminations

Circuitry

Mounting Style

S

Function

S

C