SCHURTER GmbH
D – 79346 Endingen
www.schurter.com
Changes that contribute to technical improvement are subject to alternations
page
issue date:
created by:
amendment date: released by:
amendment no.: datasheet no.:
index
2 of 16
04.08.2007
Mangold
25.03.2010
Schillak
10177
105.9526.200
d
Print date: 25/03/2010 15:06:00
1
PRODUCT DESCRIPTION
Both, the housing and the actuator of the vandal-proof latching action switch MSM LA are made of
high-quality stainless steel. By using this robust and weather-resistant material and due to the
high impact resistance, the switch is particularly suited for use in equipment in harsh
environments or for vandal-protected applications.
The MSM LA is available in 19 and 22 mm mounting diameters
and suitable for use in temperatures ranging from -40 °C to
+85 °C. With an actuating travel greater than 5 mm, the MSM LA
is ideal for use in applications where increased feedback of the
switching status is required. Different types of contact offer a
range of permissible switching voltages up to 125 VDC / 250 VAC.
The switching status (ON/OFF) is easy to discern by looking at, or
feeling, the resting position of the actuator. In the off state, the
actuator position protrudes from the housing; in the ON state, it is
depressed into the housing.
The MSM LA is equipped with quick connect terminals to allow for
fast connections. The cables are plugged onto the switching
element which is subsequently plugged onto the previously screwed-in actuating element.
Point and ring illuminated versions in red, green and blue are available for indicating the switching
status or for providing visibility during night-time use. All versions can be lettered. All options for
the MSM LA are available in single-pole and double-pole versions.
2
TECHNICAL DATA AND DIMENSIONAL DRAWINGS
2.1
Technical Data
Electrical Data
Switching Voltage max.
[VDC]
30 (125VDC/0,5A)
1)
Switching Voltage max.
[VAC]
250
Switching Current max.
[AAC]
12
Rated Braking Capacity
[WAC]
3000
Lifetime (at 8A / 250 VAC)
[Actuations]
50.000
Lifetime
1)
(at 0,5A / 125 VDC)
[Actuations]
100.000
Initial Contact Resistance
(at 12V / 1 ADC)
[mΩ]
< 100
Insulation Resistance (500 VDC)
[MΩ]
> 100
1)
Direct current Lifetime testing accomplished for switch element 1682.1101 with an actuation frequency of 1 Hz and an actuation
velocity of 100 mm/s.