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Datasheet generated 2026-10-07
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NH1 Switch-disconnector 1P Box (XNH1-1-A250-BT)

Eaton · Switchgear & Protection · Fuse Switch-Disconnectors · Ireland · eaton.com
Part Number
XNH1-1-A250-BT  ·  HS 8536.90
NH1 Switch-disconnector 1P Box (XNH1-1-A250-BT)

Technical Specifications

Manufacturer part number (MPN)XNH1-1-A250-BT
EAN / GTIN4015081779772
Sales unitpcs
Eaton catalogue number183050
Depth306 mm
Height117 mm
Width69 mm
Weight0.996 kg
CompliancesRoHS conform
CertificationsIEC/EN 60947-3
FeaturesStandard sealable; Halogen free
Flammability characteristics (UL)Self-extinguishing (UL 94)
Special featuresCurrent paths of electrolytic copper, silver-plated Permanent operation (rated operating mode)
Suitable forGround mounting; Front mounting
Actuator typeCover grip
ColorGray
Number of polesSingle-pole
TypeBasic device
Ambient operating temperature detailsAmbient temperature range: -25 °C - 70 °C
Equipment heat dissipation, current-dependent16 W
Heat deflection temperature125 °C
Heat dissipation at 80% without fuses14.1 W
Heat dissipation per pole, current-dependent5.3 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
Electrical connection type of main circuitFrame clamp
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
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-22B); 250 A (AC-21B); 250 A (AC-23B); 250 A (DC-21B); 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; Max. 37 mm cable lug width at flange connection; Bolt diameter at flange connection: M10
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; 10 mm² -150 mm² at clamp-type terminal; 35 mm² - 150 mm² at box terminal; 70 mm² - 95 mm² (2x) at double clamp-type terminal
Connection typeBox terminal
Degree of protectionIP20 (operating status, XNH installed); IP2XC (contact protection, XNH installed); IP10 (handle cover open, XNH installed)
Rated permanent current Iu250 A
Motor drive integratedNo
Type of electrical connection of main circuitFrame clamp
Version as emergency stop installationNo
Type of control elementCover grip
Version as main switchNo
Version as safety switchNo
Rated short-time withstand current lcw6 kA
Suitable for floor mountingYes
Suitable for front mountingYes
Suitable for busbar mountingNo
Max. rated operation voltage Ue AC690 V
With error protectionNo
Motor drive optionalNo
Position control elementFront side
Equipped with connectorsNo
Country of originGermany

Properties

MOQ1

Cross-References

Attached Documents