Type
DC switch-disconnectorSwitch-disconnector
Special features
Max. 50 % trip by shunt/undervoltage release of mechanical life spanMain switch characteristics including positive drive to IEC/EN 60204, 0113.Isolating characteristics to IEC/EN 60947-3, 0660.N switch-disconnectors can be combined with NZM...-XU, NZM...-XA shunt releases, auxiliary contacts and NZM...-XR... remote operator.For DC switching, all 4 contacts must be connected in series -see information on jumper kit accessoriesOperating with ungrounded systems (e.g., IT), the installation must prevent a double ground faultSwitch can not be combined with plug-in/withdrawable units and/or connection on rea, neither with connection width extensions, module plates, or band terminals in UL489B applicationsN4-4-...-S15-DC feeder unit and outgoer from the bottom only.Suitable for 100%-rated application with enclosure minimum WxHxD of 1200 x 600 x 275 mmDoes not provide any overcurrent protection.Rated current = rated uninterrupted current: 1000 A include jumpers at 65 °C
Application
Branch circuits, feeder circuitsOpen areasUtility buildings
Circuit breaker frame type
Features
Version as main switch
Optionally with XR remote operator. Can be optionally controlled remotely with XU/XA shunt release.
Motor drive optional
Version as emergency stop installation
Version as maintenance-/service switch
10.10 Temperature rise
The panel builder is responsible for the temperature rise calculation. Eaton will provide heat dissipation data for the devices.
10.11 Short-circuit rating
Is the panel builder's responsibility. The specifications for the switchgear must be observed.
10.12 Electromagnetic compatibility
Is the panel builder's responsibility. The specifications for the switchgear must be observed.
10.13 Mechanical function
The device meets the requirements, provided the information in the instruction leaflet (IL) is observed.
10.2.2 Corrosion resistance
Meets the product standard's requirements.
10.2.3.1 Verification of thermal stability of enclosures
Meets the product standard's requirements.
10.2.3.2 Verification of resistance of insulating materials to normal heat
Meets the product standard's requirements.
10.2.3.3 Resist. of insul. mat. to abnormal heat/fire by internal elect. effects
Meets the product standard's requirements.
10.2.4 Resistance to ultra-violet (UV) radiation
Meets the product standard's requirements.
10.2.5 Lifting
Does not apply, since the entire switchgear needs to be evaluated.
10.2.6 Mechanical impact
Does not apply, since the entire switchgear needs to be evaluated.
10.2.7 Inscriptions
Meets the product standard's requirements.
10.3 Degree of protection of assemblies
Does not apply, since the entire switchgear needs to be evaluated.
10.4 Clearances and creepage distances
Meets the product standard's requirements.
10.5 Protection against electric shock
Does not apply, since the entire switchgear needs to be evaluated.
10.6 Incorporation of switching devices and components
Does not apply, since the entire switchgear needs to be evaluated.
10.7 Internal electrical circuits and connections
Is the panel builder's responsibility.
10.8 Connections for external conductors
Is the panel builder's responsibility.
10.9.2 Power-frequency electric strength
Is the panel builder's responsibility.
10.9.3 Impulse withstand voltage
Is the panel builder's responsibility.
10.9.4 Testing of enclosures made of insulating material
Is the panel builder's responsibility.
Mounting Method
Distribution board installation
Intermediate mounting
Ground mounting
Built-in device fixed built-in technique
Fixed
Equipment heat dissipation, current-dependent
Rated short-time withstand current (Icw)
Electrical connection type of main circuit
Ambient operating temperature - max
Ambient operating temperature - min
Ambient storage temperature - max
Ambient storage temperature - min
Current rating (Iu) at 40°C with terminal jumpers
Current rating (Iu) at 65°C with terminal jumpers
Number of auxiliary contacts (change-over contacts)
Number of auxiliary contacts (normally closed contacts)
Number of auxiliary contacts (normally open contacts)
Rated insulation voltage (Ui)
Rated operating power at AC-23, 400 V
Rated operating power at AC-3, 400 V
Rated operational current
Degree of protection (IP), front side
Terminal capacity (copper strip)
Min. 6 segments of 16 mm x 0.8 mm at flat conductor terminal
Max. 10 segments of 32 mm x 1 mm (2x) at flat conductor terminal
10 segments of 50 mm x 1 mm (2x) at 1-hole module plate
Min. 10 segments of 50 mm x 1 mm (2x) at rear-side connection (punched)
Max. 10 segments of 50 mm x 1 mm (2x) at rear-side connection (punched)
10 segments of 80 mm x 1 mm (2x) at rear-side width extension
NA: same as for IEC
Functions
Interlockable
Photovoltaic applications
Disconnectors/main switches
Voltage release optional
Rated conditional short-circuit current (Iq)
Rated operating voltage (Ue) at AC - max
Rated operational current for specified heat dissipation (In)
Rated permanent current at AC-21, 400 V
Rated permanent current at AC-23, 400 V
Rated short-time withstand current (t = 0.1 s)
Number of operations per hour - max
Standard terminals
Screw connection,Optional:Tunnel terminal,Rear-side connection,Strip connection
Rated operating voltage Ue (UL) - max
Terminal capacity (copper busbar)
M10 at rear-side screw connection
Min. 25 mm x 5 mm direct at switch rear-side connection
Max. 50 mm x 10 mm (2x) direct at switch rear-side connection
Min. 25 mm x 5 mm at rear-side 1-hole module plate
Max. 50 mm x 10 mm (2x) at rear-side 1-hole module plate
50 mm x 10 mm (2x) at rear-side 2-hole module plate
Min. 60 mm x 10 mm at rear-side width extension
Max. 80 mm x 10 mm (2x) at rear-side width extension
NA: same as for IEC
Terminal capacity (copper stranded conductor/cable)
127 mm² - 185 mm² (1x) direct at switch rear-side connection
50 mm² - 185 mm² (4x) direct at switch rear-side connection
Min. 120 mm² - 300 mm² (1x) at rear-side 1-hole module plate
Max. 95 mm² - 300 mm² (2x) at rear-side 1-hole module plate
Min. 95 mm² - 185 mm² (2x) at rear-side 2-hole module plate
Max. 35 mm² - 185 mm² (4x) at rear-side 2-hole module plate
50 mm² - 240 mm² (4x) at 4-hole tunnel terminal
300 mm² (4x) at rear-side width extension
95 mm² - 240 mm² (6x) at rear-side width extension
NA: kcmil 250 - kcmil 350 (1x) direct at switch rear-side connection
NA: AWG 0 - kcmil 350 (4x) direct at switch rear-side connection
NA: min. kcmil 250 - kcmil 600 (1x) at rear-side 1-hole module plate
NA: max. AWG 3/0 - kcmil 600 (2x) at rear-side 1-hole module plate
NA: min. AWG 3/0 - kcmil 350 (2x) at rear-side 2-hole module plate
NA: max. AWG 2 - kcmil 350 (4x) at rear-side 2-hole module plate
NA: AWG 0- kcmil 500 (4x) at 4-hole tunnel terminal
NA: kcmil 600 mm² (4x) at rear-side width extension
NA: AWG 3/0 - kcmil 500 (6x) at rear-side width extension
Terminal capacity (aluminum stranded conductor/cable)
Min. 185 mm² - 240 mm² (1x) at rear-side 1-hole module plate
Max. 70 mm² - 185 mm² (2x) at rear-side 1-hole module plate
50 mm² (4x) at rear-side 2-hole module plate
240 mm² (2x) at rear-side width extension
70 mm² - 240 mm² (6x) at rear-side width extension
NA: aluminum conductor not applicable