5
Operating Instructions
Safety Switch NM..HB
Inspection and service
WARNING
Danger of severe injuries due to the loss of the
safety function.
f
If damage or wear is found, the complete switch
must be replaced. Replacement of individual
parts or assemblies is not permitted.
f
Check the device for proper function at regular
intervals and after every fault. For informa-
tion about possible time intervals, refer to
EN ISO 14119:2013, section 8.2.
Inspection of the following is necessary to ensure
trouble-free long-term operation:
f
correct switching function
f
secure mounting of all components
f
damage, heavy contamination, dirt and wear
f
sealing of cable entry
f
loose cable connections or plug connectors.
Info
: The year of manufacture can be seen in the
bottom, right corner of the type label.
Exclusion of liability and warranty
In case of failure to comply with the conditions for
correct use stated above, or if the safety regula-
tions are not followed, or if any servicing is not
performed as required, liability will be excluded and
the warranty void.
Notes about
This device is intended to be used with a Class 2
power source in accordance with UL1310.
As an alternative an LV/C (Limited Voltage/Current)
power source with the following properties can be
used:
This device shall be used with a suitable isolating
source in conjunction with a fuse in accordance
with UL248. The fuse shall be rated max. 3.3 A
and be installed in the max. 30 V DC power supply
to the device in order to limit the available current
to comply with the UL requirements
1)
. Please note
possibly lower connection ratings for your device
(refer to the technical data). A maximum power
value of 100 VA according to Tab. 32.1 (UL508)
must not be exceeded.
1) Note on the scope of the UL approval: the devices have been
tested as per the requirements of UL508 and CSA/ C22.2 no. 14
(protection against electric shock and fire).
EU declaration of conformity
The declaration of conformity is part of the operating
instructions, and it is included as a separate sheet
with the device.
The original EU declaration of conformity can also
be found at: www.euchner.com
Service
If servicing is required, please contact:
EUCHNER GmbH + Co. KG
Kohlhammerstraße 16
70771 Leinfelden-Echterdingen
Germany
Service telephone
:
+49 711 7597-500
:
Internet
:
www.euchner.com
Technical data
Parameter
Value
Housing material
Reinforced thermoplastic
Degree of protection
IP67
Mech. operating cycles
20 x 10
6
Ambient temperature
-20 … +80 °C
Degree of contamination
(external, acc. to EN 60947-1)
3 (industrial)
Installation orientation
Any
Approach speed, max.
60 m/min
Actuating force at 20 °C
0.1 N
Actuation frequency, max.
5,000/h
Switching principle
Slow-action switching
contact
Contact material
Silver alloy, gold flashed
Connection
Screw terminal
Conductor cross-section
(rigid/flexible)
0.34 mm
2
… 1.5 mm
2
Rated impulse withstand voltage
U
imp
= 2.5 kV
Rated insulation voltage
U
i
= 250 V
Conditional short-circuit current
100 A
Switching voltage, min., at 10 mA
12 V
Utilization category acc. to EN 60947-5-1
AC-15
4 A 230 V
DC-13
4 A 24 V
Switching current, min., at 24 V
1 mA
Short circuit protection (control circuit
fuse) acc. to IEC 60269-1
4 A gG
Convent. thermal current I
th
4 A
Reliability values acc. to EN ISO 13849-1
B
10D
at DC-13 100 mA/24 V
2 x 10
7
Fig. 3: Switching elements and switching functions
21
13
21
31
11
21
31
31
21
13
21
22
14
22
32
12
22
32
32
22
14
22
21
31
21
13
31
21
11
21
31
21
13
22
32
22
14
32
22
12
22
32
22
14
NM01
NM12
NM03
NM11,
NM11..C2069
NM02
21
11
22
12
11
21
12
22
NM02..C2069
Not actuated
Actuated
Fig. 4: Changing the lever arm
The lever arm can be adjusted to positions every 10°. Depending on the application, the lever with
roller can also be rotated to the outside or the inside. After setting the required approach direction,
fasten the lever arm using the screw.
Fig. 5: Changing the switching direction
Simultaneously press
and rotate the disk
Rotate the actuating
element
Left switch-
ing
Left/right switching
(default setting)
Right
switching
-90°
0°
+90°