Schneider-Electric
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LV434557
trip unit MicroLogic 2.3 AB for ComPact NSX 400/630 circuit breakers, electronic, rating 400 A, 4 poles 4d
Important message Important message: 
This product has been switched to new ComPacT range and is no longer commercialized. It will continue to be available in H1 2023 only limited to specific projects.
Schneider Electric
Characteristics
Main
Range ComPact
Range of product ComPact NSX400...630
Product or component type Trip unit
Trip unit name MicroLogic 2.3 AB
Trip unit technology Electronic
Range compatibility ComPact NSX400
ComPact NSX630
Device application Special application
Number of poles 4P
Protected poles description 4t
3t + N/2
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 400 A at 40 °C
[Ue] rated operational voltage 690 V AC 50/60 Hz
Network type AC
Network frequency 50/60 Hz
Complementary
Long-time pick-up adjustment type Ir (thermal protection) Adjustable
[Ir] long-time protection pick-up adjustment range 260...400 A
Long-time protection delay adjustment type tr Fixed
[tr] long-time protection delay adjustment range 15 s at 1.5 x Ir
0.35 s at 7.2 x Ir
0.5 s at 6 x Ir
Thermal memory 20 minutes before and after tripping
Short-time protection pick-up adjustment type Isd Adjustable 9 settings
[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 4800 A
Earth-leakage protection Without
Neutral protection settings 0.5 x Ir (3t + N/2)
1 x Ir (4t)
No protection (3t)
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
Environment
Standards EN/IEC 60947-2
UL 508
Product certifications Marine
EAC
CCC
Ambient air temperature for operation -25…70 °C
Ambient air temperature for storage -50…85 °C
Packing Units
Unit Type of Package 1 PCE
Number of Units in Package 1 1
Package 1 Height 13.5 cm
Package 1 Width 17.7 cm
Package 1 Length 21.6 cm
Package 1 Weight 1.784 kg
Unit Type of Package 2 S04
Number of Units in Package 2 10
Package 2 Height 30.0 cm
Package 2 Width 40.0 cm
Package 2 Length 60.0 cm
Package 2 Weight 18.506 kg
Offer Sustainability
REACh Regulation
print REACh Declaration
EU RoHS Directive Compliant with Exemptions
Mercury free Yes
RoHS exemption information
print Yes
China RoHS Regulation
print China RoHS declaration
California proposition 65 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Contractual warranty
Warranty 18 months