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Datasheet generated 2026-10-07
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Switch-Disconnector 250A NH1 M10 (XNH1-S250)

Eaton · Switchgear & Protection · Fuse Switch-Disconnectors · Ireland · eaton.com
Part Number
XNH1-S250  ·  HS 8536.90
Switch-Disconnector 250A NH1 M10 (XNH1-S250)

Eaton XNH1-S250 NH fuse-switch 3p flange connection M10 max. 150 mm², busbar 60 mm, NH1.

Technical Specifications

Manufacturer part number (MPN)XNH1-S250
EAN / GTIN4015081779789
HS code8536.90
Sales unitpcs
Eaton catalogue number183051
Depth306 mm
Height142 mm
Width184 mm
Weight2.109 kg
CompliancesRoHS conform
CertificationsIEC/EN 60947-3
FeaturesHalogen free; Standard sealable
Flammability characteristics (UL)Self-extinguishing (UL 94)
Special featuresPermanent operation (rated operating mode) Current paths of electrolytic copper, silver-plated Cable connection optionally at the top or bottom
Suitable forBusbar mounting; Front mounting
Actuator typeCover grip
ColorGray
Number of polesThree-pole
TypeBasic device
Ambient operating temperature detailsAmbient temperature range: -25 °C - 70 °C
Equipment heat dissipation, current-dependent22 W
Heat deflection temperature125 °C
Heat dissipation at 80% without fuses14.1 W
Heat dissipation per pole, current-dependent7.3 W
Rated operational current for specified heat dissipation (In)250 A
Total heat dissipation without fuses at Ith22 W
Creepage resistanceCTI 600
Direction of incoming supplyAs required (FLEX System)
Electrical connection type of main circuitScrew connection
Frequency rating40 Hz - 60 Hz
Frequency rating of contacts40 Hz - 60 Hz
Lifespan, electrical200 operations
Operating altitude without derating - max2000 mm
Overvoltage categoryIII
Permitted power loss per fuse link - max23 W
Pollution degree3
Power rating at AC-23, 400 V0 kW
Rated conditional short-circuit rating120 kA (500 V); 100 kA (690 V)
Rated impulse withstand voltage (Uimp)8 kV
Rated insulation voltage (Ui)800 VAC
Rated operating voltage (Ue) at AC - max690 V
Rated operation current (Ie)250 A
Rated operational current250 A (AC-21B); 250 A (AC-22B); 250 A (DC-21B); 250 A (AC-23B); 250 A (DC-22B)
Rated short-time withstand current (Icw)6 kA
Rated uninterrupted current (Iu)250 A
Voltage rating at AC400 V (AC-23B) 500 V (AC-22B) 690 V (AC-21B)
Voltage rating at DC250 V (DC-22B) 440 V (DC-21B)
Voltage testYes, sliding inspection windows
Conditioned rated short-circuit current Iq120 kA
Rated conditional short-circuit current (Iq)120 kA
Activation typeDependent manual activation
Actuator positionFront side
Cable entry typeOther
Degree of protection (front side)Other
Lifespan, mechanical1400 operations
Locking facilityYes, optional
MaterialPolyamide
Mounting methodBusbars of 60 mm
Mounting positionVertical or horizontal
SizeNH1 fuse
Suitable for fusesNH1
Terminal capacity (copper band)6 mm x 16 mm x 0.8 mm (6x) at box terminal
Terminal capacity (copper busbar)30 mm x 10 mm; Bolt diameter at flange connection: M10; Max. 37 mm cable lug width at flange connection
Terminal capacity (copper strip)16 mm x 0.8 mm (10x) at box terminal
Terminal capacity (stranded cable)25 mm² - 150 mm² at box terminal; 35 mm² - 150 mm² at box terminal; 70 mm² - 95 mm² (2x) at double clamp-type terminal; 10 mm² -150 mm² at clamp-type terminal
Connection typeFlat connection
Degree of protectionIP20 (operating status, XNH installed); IP10 (handle cover open, XNH installed); IP2XC (contact protection, XNH installed)

Properties

MOQ1

Cross-References

Attached Documents