61www.burgess-switch.comburgess-switch@johnsonelectric.omBurgess switches
Miniature
KB5
KB5
Characteristics ■ positive-action forced double break switching
■ > 3 mm contact gap at full travel
■ high electrical rating
■ faston terminals
Rating Up to 250 VAC, 20 A
Dimensions (mm) 41 • 19,5 • 15.5
Actuator ■ plunger
■ plain lever
■ roller levers
Approvals ULS, CSA
Preferred Range
Ordering Actuating Force Sealing Operating pos Terminal Circuit Actuator Contacts Electrical rating
Reference (N) (ozf) (mm) (in)
KB5FULS 3.00 10.0 IP40 16.8 0.66 Faston NC Plunger Ag Up to 250 VAC, 20 A
KB5FKULS 2.25 8.0 IP40 19.2 0.76 Faston NC Plain lever Ag Up to 250 VAC, 20 A
KB5FKRULS 2.25 8.0 IP40 31.0 1.22 Faston NC Roller lever Ag Up to 250 VAC, 20 A
62 Burgess switches www.burgess-switch.comburgess-switch@johnsonelectric.om
Miniature
KB5
Specifications
Housing Polycarbonate
Plunger Nylon
Mechanism Single pole, double break, positive action
Functions Normally closed
Contacts Fixed – silver, Moving – silver cadmium oxide
Terminals 6.3 mm (0.25 in) faston, brass
Temperature range –40°C to +85°C
Mechanical life 107 cycles minimum, impact-free actuation
Protection IP40 (enclosure)
Mounting Side mounting
Actuators Plain lever - stainless steel, roller lever - stainless steel, nylon roller
Approvals UL and CSA
Circuit diagram
Dimensions
NORMALLY
CLOSED CLOSED
NORMALLY
Recommended maximum electrical ratings
Voltage Resistive load Inductive load Horsepower Approval
(max) (A)
250 VAC 20 (0.75 pf) - - ULS 1054/CSA 22.2 No. 55 - 100,000 operations
250 VAC - - 2 HP ULS 1054 - Horsepower - 6,000 operations
125 VAC - - 1 HP ULS 1054 - Horsepower - 6,000 operations
0 - 15 VDC 15 - - General rating - 50,000 operations
15 - 30 VDC 10 - - General rating - 50,000 operations
63www.burgess-switch.comburgess-switch@johnsonelectric.omBurgess switches
Miniature
Operating Characteristics
Actuating Operation Free Contact gap at
Actuator Reference Force Position Position total travel
Maximum Minimum
(N) (ozf) (mm) (in) (mm) (in) (mm) (in)
Plunger KB5FULS 3,00 10,8 16,8 0,66 19,3 0,76 2 T 3.0 2 T 0.12
1 At contact separation of 2 • 1,5 mm
K Lever KB5FKULS 2,25 8,0 19,2 0,76 26,0 1,02 2 T 3.0 2 T 0.12
KR Lever KB5FKRULS 2,25 8,0 31,0 1,22 36,5 1,40 2 T 3.0 2 T 0.12
Recommended minimum contact separation 2 • 1,5 mm (2 • 0,6) indicated when groove in plunger lines up with case.
Operating characteristics are specified from mounting holes.
Total travel: Plunger can be depressed flush with housing. The housing should not be used as an end stop.
ROLLER Ø9.5 X 4.6
[Ø0.37 X 0.18]
[1.2]
30.5
[1.32]
33.5
ROLLER Ø9.5 X 4.6
[Ø0.37 X 0.18]
[1.2]
30.5
[1.32]
33.5
ROLLER Ø9.5 X 4.6
[Ø0.37 X 0.18]
[1.2]
30.5
[1.32]
33.5
Basic type KB5
Terminals F Faston 6.3 • 0.8 mm
Actuators No symbol, without lever
K Plain lever 33.5 mm
KR Roller lever 30.5 mm
Approvals ULS UL 100 k operations and CSA approved
Special Features /□□□□ Burgess specialise in customer specific solutions.
Additional product variants are available or can be provided.
If your requirements cannot be satisfied from the options listed,
please contact us.
Ordering Reference
Example: KB5 F K ULS
KB5
