32

Burgess switches

www.burgess-switch.com

burgess-switch@johnsonelectric.om

FK4

Burgess

±0.05

0.8±0.05

[0.2]

3.0

5.1

MAX

[0.12]

[0.05]

[0.18]

[0.19]

2.5

4.6

[0.1]

4.77

[0.2]

[0.02]

[0.38]

[0.69]

[0.2]

9.53

5.08

0.50

2 MOUNTING HOLES

Ø2.25 0.0 [0.09]

+0.1

1.18

[0.05]

5.08

1.18

17.6

MAX

4

2

1

3

NORMALLY

OPEN

NORMALLY

CLOSED

4

2

1

3

Specifications

Housing

Glass fibre reinforced flame retardent nylon

Plunger

Nylon

Mechanism

Double pole, single throw snap-action coil spring mechanism with stainless steel springs

Functions

Change-over, NO, NC

Contacts

Silver

Terminals

Solder, PCB - brass, gold flashed

Temperature range ºC

–40°C to +85°C

Mechanical life

107 cycles minimum (impact free actuation)

Protection

IP40 (enclosure)

Mounting

Side mounting or PCB mounting (T8 only)

Actuators

Plain lever, simulated roller lever/cam follower, stainless steel

Circuit diagram

Dimensions

Recommended maximum electrical ratings

Voltage

Load

Approval

(max)

(A)

250 VAC

5 (0.75 pf)

UL 1054/CSA 22.2 No. 55 - 6,000 operations

125 VAC

5 (0.75 pf)

UL 1054/CSA 22.2 No. 55 - 6,000 operations

0 - 15 VDC

5

General rating - 50,000 operations

15 - 30 VDC

3

General rating - 50,000 operations

Values shown are recommended maximum ratings for single circuit switching