Bifurcated contacts for low resistance and high reliability 鈥?/div>
suitable for switching low-level electronic currents
s
Positive break of NC contacts for safety circuits in
conformity with BS60947-5-1, VDE 0660 part 206 and IEC
337-1
s
A second contact block can be fitted giving a total of four
contacts in various combinations of NO and NC
s
Unshrouded models (stop type) with red terminal cover
s
Impact-resistant glass-reinforced thermoplastic housing
s
Non-skid rubber feet plus floor-fixing holes if required
s
Double insulated for electrical safety
s
Mechanism protected against dirt and foreign matter
s
Cable entry hole with PG13.5 thread
s
IP65
PX/PA
M New
od
els
PRICE
INFORMATION
AND ORDERING
13
14
21
22
Options and ordering codes
Footswitches:
PX 10111
PX 10311
PX 10121
PA 20101
PA 20321
PA 20701
Additional contact blocks if required:
B501
B601
1NO + 1NC snap-action
1NO + 1NC slow-action
Shrouded, snap-action 1NO + 1NC
Shrouded, slow-action 1NO + 1NC
Shrouded, latching, snap-action 1NO + 1NC
Unshrouded, snap-action 1NO + 1NC
B901
2NC slow-action
Unshrouded, latching, slow-action 1NO + 1NC
Unshrouded, slow-action 2NC
B1001
2NO slow-action
Many other footswitch models available including double-pedal types - contact IMO for availability
Cable glands
Cable glands are available to enable standard multi-core cables to be connected
without the use of conduit. Two sizes are possible:
Part number
Cable size
PG13.5
酶9-12mm
See previous page
PG13.5/6
酶6-9mm
for diagram
Contact blocks
The contact blocks can also be purchased
separately without the footswitches and be
used as stand-alone limit switches.
The contacts are electrically separated so it is
possible to connect different voltages to NO and
NC circuits i.e. Zb contacts. The NC contacts also
have positive break, i.e. suitable for safety circuits.
Contact arrangements:
1NO+1NC
1NO+1NC
B501
B601
13
14
21
22
Plug and socket footswitches
All PX series footswitches can be converted to a plug-in style by the addition of
an adaptor. See previous page for diagram.
The adaptor is screwed into the footswitch and the four flying leads connected to
the four terminals of the contact block.
Suitable 4-wire plug leads are available 鈥?see pages 332 to 335
Ratings
250VAC/300VDC
3A
IP67
Note: There is space under the terminal cover to allow the fitting of a small amount of
control components, e.g. relays, terminal blocks etc., which should be secured to
prevent interference with the footswitch mechanism.
2NC
B901
11
12
21
22
2NO
B1001
13
14
23
24
Terminal screws: M3.5
with rising cable clamps.
Maximum screw
tightening torque:
0.8Nm (8kg cm).
Specifications
Rated thermal current Ith
Rated working voltage
Initial contact resistance
Contact gap
Contact material
Dielectric strength
Ambient operating temperature
Ambient humidity
Maximum wire size
Conduit entr y
10A
500VAC/600VDC
<25 mOhms
>2.5mm (2 x 1.25mm conforming to VDE 0660 part 206)
silver
2000VAC, 50/60Hz for 1 minute between open contacts
2000VAC, 50/60Hz for 1 minute between current-carrying parts and ground
鈥?5 to +80 deg. C
95% r.h.
2 x 1.5mm
2
flexible, 2 x 2.5mm
2
solid
PG13.5
Contact ratings
BS/EN 60947-5-1
AC15
230VAC
400VAC
500VAC
6A
4A
1A
DC13
24VDC
125VDC
250VDC
6A
1.1A
0.4A
1
