33

Burgess switches

www.burgess-switch.com

burgess-switch@johnsonelectric.om

FK4

Operating Characteristics

Actuating

Release

Free

Operating

Movement

Actuator

Reference

Force Force

Position

Position Differential

Maximum

Minimum

Maximum

Maximum

(N)

(ozf)

(N)

(ozf)

(mm)

(in)

(mm)

(in)

(mm)

(in)

Plunger

FK4T7*

1,8

6,50

0,25 0,9

9,4

0,37

8,25 ± 0.25

0,32 ± 0.01 0,50

0,02

Y1 Lever

FK4T7Y1

0,8

2,90

0,09 0,3

12,1

0,48

8,25 ± 0.9

0,32 ± 0.04 1,85

0,07

Width of lever 3.0 mm/0.12 in

YC Lever

FK4T7YC

1,0

3,60

0,1

0,4

13,5

0,53

10,40 ± 0.6

0,41 ± 0.02 1,30

0,05

Width of lever 3.0 mm/0.12 in

Overtravel: Plunger can be depressed flush with housing. The housing should not be used as an end stop.

Datum for free position and operating position

* FK4T7 – Center of fixing hole

R2.4

Burgess

Burgess

Burgess

[0.83]

[0.67]

[0.09]

[0.3]

16.9

7.5

[0.3]

21.0

7.5

[0.18]

[0.1]

4.6

2.5

R2.4

Burgess

Burgess

Burgess

[0.83]

[0.67]

[0.09]

[0.3]

16.9

7.5

[0.3]

21.0

7.5

[0.18]

[0.1]

4.6

2.5

Basic type

FK4

Terminals

T7

Solder

0,5 • 3,5 • 3,6 long

Actuators

No symbol, plunger

Y1

Plain lever

YC

Simulated roller lever/cam follower

Approvals

UL

UL and CSA

Ordering Reference

Example: FK4

T7

Y1 UL