Schneider-Electric
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LV433887
trip unit MicroLogic 4.2 AL for ComPact NSX 250 circuit breakers, electronic, rating 250A, 3 poles 3d
Important message Important message: 
This product has been switched to new ComPacT range and is no longer commercialized.
Schneider Electric
Characteristics
Main
Range ComPact
Range of product ComPact NSX100...250
Product or component type Trip unit
Trip unit name MicroLogic 4.2 AL
Trip unit technology Electronic
Range compatibility ComPact NSX250
Device application Distribution
Number of poles 3P
Protected poles description 3t
Neutral position Left
Trip unit protection functions LSoI
Protection type L : for overload protection (long time)
So : for short time short-circuit protection with fixed delay
I : for instantaneous short-circuit protection
Trip unit rated current 250 A at 40 °C
[Ue] rated operational voltage 440 V AC 50/60 Hz
Network type AC
Network frequency 50/60 Hz
Complementary
Long-time pick-up adjustment type Ir (thermal protection) Adjustable 9 settings
[Ir] long-time protection pick-up adjustment range 100...250 A
Long-time protection delay adjustment type tr Fixed
[tr] long-time protection delay adjustment range 11 s at 7.2 x Ir
16 s at 6 x Ir
400 s at 1.5 x Ir
Thermal memory 20 minutes before and after tripping
Short-time protection pick-up adjustment type Isd Adjustable
[Isd] Short-time protection pick-up adjustment range 1.5...10 x Ir
Short-time protection delay adjustment type tsd Fixed
[tsd] Short-time protection delay adjustment range 0.02 s
Instantaneous protection pick-up adjustment type Ii Fixed
[Ii] instantaneous protection pick-up adjustment range 3000 A
Earth-leakage protection Integrated
Earth-leakage protection class Class A
Earth-leakage protection sensitity adjustment type IΔn Adjustable
[IΔn] earth-leakage protection sensitivity adjustment range 30 mA
500 mA
100 mA
3 A
300 mA
5 A
1 A
Earth-leakage protection specific mode OFF using the IΔn rotary switch
Earth-leakage protection time delay adjustement type Δt Adjustable
[Δt] Earth-leakage protection time delay adjustment range 150 ms
0 ms
500 ms
60 ms
1 s
Zone selective interlocking ZSI Without
Local signalling Flashing LED (green) for ready to operate
LED 105 % Ir (red) for overload
LED 90 % Ir (orange) for overload
Color indicator (yellow) for residual current
Environment
Standards IEC 60947-2
NEMA AB1
EN 60947-2
UL 508
Product certifications EAC
CB
CCC
Pollution degree 3 conforming to IEC 60947-1
IP degree of protection IP40 conforming to IEC 60529
Ambient air temperature for operation -25…70 °C
Ambient air temperature for storage -40…85 °C
Packing Units
Unit Type of Package 1 PCE
Number of Units in Package 1 1
Package 1 Height 10.0 cm
Package 1 Width 11.0 cm
Package 1 Length 15.0 cm
Package 1 Weight 620.0 g
Unit Type of Package 2 S03
Number of Units in Package 2 10
Package 2 Height 30.0 cm
Package 2 Width 30.0 cm
Package 2 Length 40.0 cm
Package 2 Weight 6.794 kg
Offer Sustainability
Sustainable offer status Green Premium product
EU RoHS Directive Compliant
print EU RoHS Declaration
Mercury free Yes
China RoHS Regulation
print China RoHS declaration
RoHS exemption information
print Yes
WEEE The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins
California proposition 65 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Contractual warranty
Warranty 18 months