Page 1
F1NS
F1NS
Characteristics ◼ small size
Dimensions (mm) 14.6 • 6.5 • 6
Approvals none
■
low current
■
long mechanical life
■
PCB mounting
■
sealed IP54 (option)
Rating Up to 250 VAC, 1 A
■
Actuator
plunger
■
plain lever
■
simulated roller lever/cam follower
Preferred Range
Ordering Actuating Force Sealing Operating pos. Terminal Circuit Actuator Contacts Electrical rating
Reference (N) (ozf) (mm)
F1NST8 2,0 7,2 IP5K4 5,9 PCB CO Plunger Ag 250 VAC, 1 A
F1NST8A1 0,6 2,2 IP5K4 7,6 PCB CO Plain lever Ag 250 VAC, 1 A
F1NST8AC 0,6 2,2 IP5K4 10,1 PCB CO Cam follower Ag 250 VAC, 1 A
Ultraminiature
25Burgess switches www.burgess-switch.comburgess-switch@johnsonelectric.om
Page 2
F1NS
Specifications
Housing Base: PA 6.6; Cowl: Silicon; Lid: PA 6.6
Plunger POM
Mechanism Snap-action, coil spring mechanism with stainless steel spring. Single-pole change-over contact
Contacts Fine silver, Gold plate on silver
Ultraminiature
Terminals PCB - Phosphor Bronze silver plated
Temperature range ºC –40°C bis +85°C
Mechanical life 10
Protection Enclosure IP40 (F1N), IP54 (F1NS)
Mounting PCB. Locating pins on housing
7
cycles minimum (impact-free actuation)
Circuit diagram
COMMON
Dimensions
NORMALLY
CLOSED
NORMALLY
OPEN
2.8
±
14,6 MAX
(.58)
0.15
4.8
Recommended maximum electrical ratings
Voltage Resistive load Inductive load Voltage Resistive load Inductive load
(VAC) (A) (A) (VDC) (A) (A)
125 1 1 up to
26 Burgess switches www.burgess-switch.comburgess-switch@johnsonelectric.om
250 1 1 30 2 2
50 0,5 0,5
75 0,25 0,25
125 0,2 0,03
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F1NS
Operating Characteristics
Actuating Release Free Operating Movement Total travelled
Actuator Reference Force Force Position Position Differential position
Maximum Minimum Maximum Maximum Maximum
(N) (ozf) (N) (ozf) (mm) (in) (mm) (in) (mm) (in) (mm) (in)
Plunger F1NST8 2 7,20 0,2 0,72 6,5 0,26 5,9 ± 0,2 0,23 ± 0,008 0,2 0,008 *
A1-Lever F1NST8A1 0,6 2,20 0,09 0,32 10,5 0,41 7,6 ± 1,2 0,3 ± 0,05 0,7 0,03 *
Width of lever 3 mm/0,12 in
AC-Lever F1NST8AC 0,6 2,20 0,09 0,32 13,3 0,52 10,1 ± 1,2 0,4 ± 0,05 0,7 0,03 *
Width of lever 3 mm/0,12 in
Ultraminiature
Datum for Free Position and Operating Position: base of switch opposite plunger.
* Flush with case. The case should not be used as an end stop.
Ordering Reference
Basic t ype F1N
Type of sealing No symbol, unsealed
S Sealed IP5K4
Terminals T8 PCB 0.8 • 0.5 • 3.45 long
Circuit No symbol, change-over
Actuators No symbol, without lever
A Special lever A type (see specification)
AC Cam follower lever 18.5 mm
Contact Material No symbol, Ag
AU Gold on nickel
Special Features /□□□□ Burgess specialise in customer specific solutions.
Additional product variants ar
please contact us.
A1 Plain lever 18.0 mm
GP Gold plate on Ag (GP)
e available or can be provided.
If your requirements cannot be satisfied from the options listed,
Example: F1N S T8 A AU
27Burgess switches www.burgess-switch.comburgess-switch@johnsonelectric.om
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