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LV431480

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trip unit - Micrologic 2.2 - 250 A - 4 poles 4d

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IN STOCK

Data sheet

Poles Description4P
Trip Unit NameMicrologic 2.2
Trip Unit TechnologyElectronic
Trip Unit Rating250 A
Protected Poles4t
For Frame SizeNSX 250 A

More info

Characteristics
Main
Commercial StatusCommercialised 
Range of productNSX100...250 
Circuit breaker applicationDistribution 
Poles description4P 
Protected poles description3t 
3t + N/2 
4t 
Neutral positionLeft 
Network typeAC 
Network frequency50/60 Hz 
Trip unit nameMicrologic 2.2 
Trip unit technologyElectronic 
Trip unit protection functionsLSoI 
Trip unit rating250 A ( 40 °C ) 
Protection typeInstantaneous short-circuit protection 
Overload protection (long time) 
Short time short-circuit protection 
Complementary
Mounting modeFixed 
[Ue] rated operational voltage690 V AC 50/60 Hz 
Neutral protection settingNo protection 3t 
1 x Ir 4t 
0.5 x Ir 3t + N/2 
Long time pick-up adjstment type IrAdjustable 9 settings 
Long time pick-up adjustment range0.9...1 x Io 
Long time delay adjustment typeFixed 
[tr] long-time delay adjustment400 s 1.5 x Ir 
16 s 6 x Ir 
11 s 7.2 x Ir 
Thermal memory20 minutes before and after tripping 
Short-time pick-up adjustment type IsdAdjustable 
[Isd] short-time pick-up adjustment range1.5...10 x Ir 
Short-time delay adjustment typeFixed 
[tsd] short-time delay adjustment range0.02 s 
Instantaneous pick-up adjustment type IiFixed 
Instantaneous pick-up adjustment range3000 A 
Environment
StandardsEN 60947-2 
IEC 60947-2 
NEMA AB1 
UL 508 
Product certificationsCSA 
UL 
IP degree of protectionIP40 conforming to IEC 60529 
Pollution degree3 conforming to IEC 60947-1 
Ambient air temperature for operation-25...70 °C 
Ambient air temperature for storage-50...85 °C 

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LV431480

LV431480

trip unit - Micrologic 2.2 - 250 A - 4 poles 4d