FOX - "K4" SERIES ADJUSTABLE MONO-CONTACT PRESSURE SWITCH

K 4 T A F 1 / 20 / P1

HOW TO ORDER

K4T=type and range of regulation
A=normally open contacts (N.O.), state "C" for normally closed (N.C.)
F= fast-on electric connections, state "O" for screw type connections.
1= 1/4"BSP threaded port, state "2" for 1/8"BSPT and "3" for M10x1.
/20= preset value in Bar, omit in case you do not require preset at factory.
/P1=rubber protection indispensable to protect the instrument from dirt and moistness.

NOTE: the piston type execution are available only with thread connection 1/4"BSP and 1/4"BSTP

 

K4 adjustable pressure switches permit opening or closing of an electrical circuit upon reaching a predetermined pressure value. The preset pressure is found by rotating the external screw located at the center of the instrument clockwise to increase and counter-clockwise to decrease the pressure set point value. Mechanical stops protect both the spring and the micro-switch from over pressurization. The main characteristic of this series is that this miniature pressure switch can be totally dismantled.

Technical Features:
Body in plated carbon steel with the following possible threaded male connections to the system: 1/4"BSP, 1/8"BSPT or M10x1- please specify when ordering.

Installation position: it can be mounted in any position.

Working temperature:

From -20°C to + 80°C

Commutation frequency:

200 cycles/min.

Switching accuracy: w4 % of set pressure

Fixed hysteresis value:

Diaphragm type: about 5 % of set value

Piston type: about 7 % of set value

Weight: 55 gr.

 

Electric Features:
Electrical connection: fast-on 6.3mm (F)

Screw connections (O)

Electrical protection according to

DIN 40050: IP 54 with rubber cup protection

Maximum contact load:

Alternating current up to 42 Volts- 2 Amp

Direct current up to 42 Volts 1- Amp

 

Available specials:

-K4X with fluid port connection made in AISI 316 stainless steel

-Viton seals

-PTFE seals

-Body in brass

We reserve the right to make modifications to construction without prior notice.

Type

Switching pressure range

Maximum pressure

Execution

K 4 R

0,2 > 2,5 Bar

25 Bar

Diaphragm

K 4 S

1 > 12 Bar

25 Bar

Diaphragm

K 4 SP

1 > 12 Bar

300 Bar

Piston

K 4 T

5 > 50 Bar

200 Bar

Diaphragm

K 4 TP

5 > 50 Bar

300 Bar

Piston

K 4 V

10 > 100 Bar

300 Bar

Piston

K 4 Z

20 > 200 Bar

300 Bar

Piston

Type

 4 R

K 4 S

K 4 SP

K 4 T

K 4 TP

K 4 V

K 4 Z

Type

Switching pressure range

Maximum pressure

 

K