Moeller® series
Key lock for NZM circuit breakers
1
Key lock based
on cylinder lock
This function reliably prevents the respective circuit
breaker/disconnector switch must be switched off. The
breaker/disconnector switch from being switched on and
safety key can only be removed in the OFF position of the
thus complies with the disconnector requirements in OFF
switch.
position pursuant to IEC/EN 60947-1. The locking effect
This is a simple method that enables the user to safely
is directly applied to this circuit breaker by a firmly fixed
work on switched-off installations or machines and several
cylinder lock combined with our proven rotary handles and
switches can mutually lock each other in a safe way.
rotary door-coupling handles. To activate the lock the circuit
ON/TRIP
OFF
Advantages:
Areas of application:
• Mechanical mutual locking of several switches. Only the
switches with the key inserted can be switched on.
• Main switch and repair / maintenance switch.
• e.g.in:
  trade and industry supply systems
 Processing industry
 Ship-building
 Mining
 Data centres
 Back-up power supply systems
 Telecommunication
 Available in all sizes of the circuit breaker / disconnector
series NZM/N…1,2,3,4.
 Integrated in rotary handles and rotary door-coupling
handles without any particular space requirements
 Fast assembly without any extra effort as it comes
pre-assembled in the handle combination
 Main and maintenance switches are fast and easy to
lock and protect from being switched on again
 Mechanical lock can be implemented in a space-saving
way and with a minimum of assembly effort
2
Scope of delivery: One safety lock in each enclosure,
with two keyed-alike Ronis keys in a pre-assembled
combination with handle kit on the NZM…XD...
switch and NZM…XTVD… rotary door-coupling handle
kit
Example of application:
Mechanical mutual locking of two
switches.
Only the switch where the key is
inserted can be switched
.
NZM1-XDKL
NZM2-XDKL
NZM3-XDKL
NZM4-XDKL
3
Key Lock
With cylinder lock for circuit-breakers
NZM
For use with
Part no.
Article no.
when ordered
separately
Notes
NZM1(-4), PN1(-4), N(S)1-(-4)
NZM1-XTVDKL
172528
NZM2(-4), PN2(-4), N(S)2-(-4)
NZM2-XTVDKL
172530
Door interlock with pad lock
• Locked by pad lock at the handle, impossible to be
outwitted in ON and OFF position
• Can be modified such that it can be defeated from the
outside using a screwdriver, when it is in teh unlocked ON
position
• Door can be opened in OFF position provided it is not
locked
External warning plate/designation label ZFS... can be
clipped on
NZM3(-4), PN3(-4), N(S)3-(-4)
NZM3-XTVDKL
172532
Door coupling rotary handles with key lock
Complete including rotary drive and coupling parts
Extension shaft required. Available in two lengths.
IP66
Standard, black/grey
Can be locked in O position by the
cylinder lock, key can be removed
Lockable in 0 position on handle
with up to 3 padlocks.
With door interlock
NZM4(-4), N(S)4-(-4)
NZM4-XTVDKL
172534
NZM1(-4), PN1(-4), N(S)1-(-4)
NZM1-XTVDKLR
172529
NZM2(-4), PN2(-4), N(S)2-(-4)
NZM2-XTVDKLR
172531
NZM3(-4), PN3(-4), N(S)3-(-4)
NZM3-XTVDKLR
172533
Circuit-breaker can also be installed in a lying position 90°
left/right, with the handle still in the same position.
Cannot be combined with:
• Remote operators
• Side wall installation
• Mechanical interlock
• Insulating sorround
Red-yellow for emergency switching off
Can be locked in O position by the
cylinder lock, key can be removed
Lockable in 0 position on handle
with up to 3 padlocks.
With door interlock
NZM4(-4), N(S)4-(-4)
NZM4-XTVDKLR
172535
NZM1(-4), PN1(-4), N(S)1-(-4)
NZM1-XDKL
172536
Door interlock with pad lock
• Locked by pad lock at the handle, impossible to be
outwitted in ON and OFF position
• Can be modified such that it can be defeated from the
outside using a screwdriver, when it is in teh unlocked ON
position
• Door can be opened in OFF position provided it is not
locked
External warning plate/designation label ZFS... can be
clipped on
Circuit-breaker can also be installed in a lying position 90°
left/right, with the handle still in the same position.
Cannot be combined with:
• Remote operators
• Side wall installation
• Mechanical interlock
• Insulating sorround
Rotary handle on circuit-breaker with key lock
Complete with rotary drive
Standard, black/grey
Can be locked in O position by the
cylinder lock, key can be removed
4
NZM2(-4), PN2(-4), N(S)2-(-4)
NZM2-XDKL
172537
NZM3(-4), PN3(-4), N(S)3-(-4)
NZM3-XDKL
172538
NZM4(-4), N(S)4-(-4)
NZM4-XDKL
172539
Circuit-breaker can also be installed in a lying position 90°
left/right, with the handle still in the same position.
Cannot be combined with:
• Remote operators
• Side wall installation
• Mechanical interlock
• Insulating sorround
Key Lock
With cylinder lock for circuit-breakers
NZM
For use with
Part no.
Article no.
when ordered
separately
Notes
NZM1(-4), PN1(-4), N(S)1-(-4)
NZM2(-4), PN2(-4), N(S)2-(-4)
NZM1/2-XV4
261232
Length 290 mm, can be cut to required length.
NZM3(-4), PN3(-4), N(S)3-(-4)
NZM4(-4), N(S)4-(-4)
NZM3/4-XV4
261234
NZM1(-4), PN1(-4), N(S)1-(-4)
NZM2(-4), PN2(-4), N(S)2-(-4)
NZM1/2-XV6
260191
NZM3(-4), PN3(-4), N(S)3-(-4)
NZM4(-4), N(S)4-(-4)
NZM3/4-XV6
260193
Extension shaft
400 mm max. built-in depth
600 mm max. built-in depth
Length 425 mm, can be cut to required length.
5
Key Lock
With cylinder lock for circuit-breakers
NZM
Dimensions for 3 and 4 pole Circuit-breakers/Switch-disconnectors
NZM1-X...KL
42 mm
(1.65")
60.6 mm (2.39")
55.5 mm
(2.19")
80.3 mm (3.16")
82.5 mm (3.25")
54 mm (2.13")
90
°
45 mm (1.77")
35 mm
(1.38")
90 mm (3.54")
45 mm
(1.77")
120 mm (4.72")
NZM2-X...KL
60.6 mm (2.39")
75 mm (2.95")
128.5 mm (5.06")
95 mm (3.74")
100 mm (3.94")
°
90
m
6 m 1")
R4 1.8
(R
52 mm (2.05")
104 mm (4.09")
140 mm (5.51")
Other measures to door coupling rotary handles see general catalogue
6
78.5 mm (3.09")
35 mm
(1.38")
42 mm
(1.65")
Key Lock
With cylinder lock for circuit-breakers
NZM
Dimensions for 3 and 4 pole Circuit-breakers/Switch-disconnectors
NZM3-X...KL
60.6 mm (2.39")
82.2 mm
(3.24")
35 mm
(1.38")
94.5 mm (3.72")
124 mm (4.88")
30°
30°
95 mm (3.74")
152.5 mm (6")
m
7m
R8 .43")
(R3
105 mm (4.13")
42 mm
(1.65")
140 mm (5.51")
185 mm (7.28")
NZM4-X...KL
50.7 mm (2")
63.6 mm (2.5")
38 mm
(1.5")
102 mm
(4.02")
162.5 mm (6.4")
73.5 mm
(2.89")
117 mm (4.61")
60.5 mm
(2.38")
30°
R137 mm
(R5.59")
58.5 mm (2.3")
30°
221.5 mm (8.72")
42 mm
(1.65")
162 mm (6.38")
204 mm (8.03")
210 mm (8.27")
5 mm
(0.2")
57 mm
(2.24")
69 mm
(2.72")
33 mm
(1.3")
280 mm (11.02")
Other measures to door coupling rotary handles see general catalogue
7
For more information, visit www.eaton.eu/electrical
To contact an Eaton salesperson
or local distributor/agent, please visit
www.eaton.eu/electrical/customersupport
Eaton Industries (Austria) GmbH
Scheydgasse 42
1215 Wien
Austria
Eaton Industries Manufacturing GmbH
EMEA Headquarters
Route de la Longeraie
1110 Morges
Switzerland
© 2013 Eaton Industries (Austria) GmbH
Subject to technical modifications. No
responsibility is taken for misprints or errata.
Printed in Austria (08/13)
Publication number BR008002EN
Keylocked NZM Circiut breaker
Grafics: SRA
Print:
8
4 015081 695072
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