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Separate Normally Closed and Normally Open Contacts
Precision Series
Switchgear
Electro-mechanical,
Standard
BSW 492
(Switching Pointswith
Adjustable by ± 20 o during Operation)
Characteristics
1. Device for adjusting the switching
pulses (smoothly). Adjustment tool
in the casing lid.
Construction
Front view
Adjusting spring A 6 x 6 X 25
or A 6 x 6 x 16
DIN 6885
2. No tightening or releasing of the
cam is required.
3. Pulse position can also be adjusted
by ± 200 for each switching point
individualiy, during operation.
\
4. High precision snap action switch
according to DIN 43695 type BSE
44.0. Mounted on individual segments. Two circuit changeover with
two electricaliy and thermaliy
isolated contact bridges.
r;..
40120---1
:2
Q
.-
c
Side view
7. Available with a short (20 mm) or
long (40 mm) shaft end of 20 mm
diameter.
Snap action switch
Protective cover
Hinge
Dimensions
219
279
537
339
7
5
4
12
20
225
245
259
6
9
165
483
285
577
379
185of
503
319
305
Number
cable
Dimension A
í
_l
5. Drive on either of the shaft ends.
The cover and the scale ring can be
mounted on either end of the shaft.
6. Suitable for clockwise and anti
clockwise rotation. The scale ring
can be used as required.
M 10 9 mm deep
--\
3
105
125
199
159
3
Reference edge
__
110
--1..-- __ 108
_••- --185
Ordering Instructions
Production
code
I
Switchgear code
BSW 492 = Switching point variable by ±20°
Snap action switch BSE 44.0 according to DIN 43695
Number of switching points
3, 6, 9, 12 or 20
Shaft end s 20 mm diameter
L = shaft length 40 mm, centre thread M 10 at both ends of the shaft, 9 mm deep
K = shaft lerigth 20 mm, centre thread M 10 at both ends of the shaft, 9 mm deep
3 = Type of drive
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BALLUFF
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Technical Series
Data BSW 492
Standard
Switchgear
BSW 492
Mechanical Data
Casing material
Die cast-aluminium,
black anodized
Cable entries in the casing
Thread Pg 21
Shaft
Steel, mounted in maintenance-free
bea rings
Cam rings
Steel, surface hardened
and ground
Push-rod
material
Steel (rust resistant), with ballbearing
fitted as support
Lubrication
None, maintenance-free,
push-rod mounted in DU bush
Protection
class
Speed
Minimum opening angle
15°
Permissible
-5°C
Operating
Snap Action Switch
BSE 44.0
to DIN 43 695
Construction,
Mechanical and
Electricai Data
lP 65 to DIN 40050
Max. 200/min.
ambient temperature
(NEMA 4, 4X, 12)
+800C
oo.
Greater than 30 million revolutions
life
Cas ing material
Duroplast, Thermoplast
Contact material
Fine silver, gold plated
(Iid)
,
Contact configuration
The BSE 44 does not meet the requirements of a forced-opening
independent trip switch.
See page 25 ff. for safety switchgear.
1~
3
2
--<)-0-
4
Cable connection
M 3 screw connections for 2 x 1.5 mm2,
with self releasing clíp washers
Contact system
Two circuit changeover with two
electrically and thermally isolated
contact bridges
Operating
system
Snap action system with friktion contacts
Operating
force on push-rod
Max. 4.4 N (440 p)
Return force
Min. 1.3 N (130 p)
Recoil time
~ 1.5 ms
Changeover
,
Normally closed 1 + 2
Normally open 3 + 4
time
~
Reproduceability
of switching
from circuit to circuit
1O
ms
point
±0.002
mm ~ ±0.1°
ovenu m
60
protection
Insulation
Group "Cn to VDE 0110
Rated voltage
250 V AC
Continuous
6A
Switching
Switching
current
capacity
capacity
Initial resistance
AC
(At 250 V, 40-60
(At 250 V, 40-60
(At 250 V, 40-60
DC
(At 220 V, UR
(At 24 V, UR
when new
Below 40 mO
Hz) cos
Hz) cos
Hz) cos
= 200
= 200
<p
<p
= 0.4
ms)
ms)
More than 50 mill ion cycles
(VDE 0660 E 3)
Electrical operating
Dependent upon load and
switching frequency
Permit
( E EC Guideline
1
= 0.8
Mechanical operating life
at 1.6 operations per second
life
=
<p
6 A
2 A
1A
0.5 A
4 A
UL E 66808
CSA LR 50067-1
89/336/EWG
(EMC Guideline)
BALLUFF
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