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Picture of Trip unit MicroLogic Vigi 4.3AL, ComPacT NSX400/630, 4 poles, electronic basic protections, earth leakage alarm, 400A
SKU:

C4044A400

Trip unit MicroLogic Vigi 4.3AL, ComPacT NSX400/630, 4 poles, electronic basic protections, earth leakage alarm, 400A

Old price: $5,643.00 INC GST
$4,615.97 INC GST
Available for Shipping : 12-Jan-2026
Trip unit MicroLogic Vigi 4.3AL, ComPacT NSX400/630, 4 poles, electronic basic protections, earth leakage alarm, 400A
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Manufacturer: Schneider Electric
Delivery date: 12-Jan-2026
Catalog
Circularity Profile
Instruction sheet
User guide
Environmental Disclosure
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Product Data Sheet
This MicroLogic 4.3 AL is a 4 poles 4d electronic trip unit used on ComPacT NSX 400/630 circuit breakers. This 400A rating electronic trip unit is an optimum choice for all standard and specific applications. It embeds adjustable long time protection against overloads. It provides also an adjustable short-time protection and a fixed instantaneous protection against short-circuits. MicroLogic 4.3 AL provides an earth leakage alarm without trip, that is available on the terminal block. MicroLogic 4.3 AL indicates overloads with Alarm LEDs. The green Ready LED flashes if the circuit breaker is ready to trip. This product is part of our EcoStruxure Power architecture if associated with PowerTag NSX and ComPacT NSX basic frame.

Products specifications

Attribute name Attribute value
Main
Trip unit technology electronic
Device application distribution
Range compatibility ComPacT new generation NSX400, ComPacT new generation NSX630
Neutral position left
Poles description 4P
Mounting mode fixed
Range ComPacT new generation
Protection type I : for instantaneous short-circuit protection, So : for short time short-circuit protection with fixed delay, L : for overload protection (long time)
Product or component type trip unit
Protected poles description 3D, 4D, 3D + N/2
Network type AC
Trip unit protection functions LSoI
[Ue] rated operational voltage 440 V AC 50/60 Hz
Range of product ComPacT NSX400...630 new generation
Trip unit name MicroLogic 4.3 AL
[In] rated current 400 A at 40 °C
Network frequency 50/60 Hz
Complementary
Residual earth-leakage time delay adjustment type adjustable
Short-time pick-up adjustment type Isd adjustable
[IΔn] residual earth-leakage sensitive adjustment 10-10 A, 5-5 A, 3-3 A, 1-1 A, 0.5-0.5 A, 0.3-0.3 A
[Isd] short-time pick-up adjustment range 1.5...10 x Ir
Local signalling color indicator (yellow) for residual current, LED 90 % Ir (orange) for overload, LED 105 % Ir (red) for overload, flashing LED (green) for ready to operate
Long time pick-up adjustment type Ir adjustable 9 settings
Long time pick-up adjustment range 160...400 A
Neutral protection setting no protection (3D), 1 x Ir (4D), 0.5 x Ir (3D + N/2)
Instantaneous pick-up adjustment range 4800 A
Short-time delay adjustment type fixed
Residual earth-leakage sensitity adjustment type adjustable
[tr] long-time delay adjustment range 400-400 s at 1.5 x Ir, 16-16 s at 6 x Ir, 11-11 s at 7.2 x Ir
Zone selective interlocking ZSI without
Instantaneous pick-up adjustment type Ii fixed
Long time delay adjustment type fixed
[Δt] residual earth-leakage time delay adjustment 1-1 s, 500-500 ms, 150-150 ms, 60-60 ms, 0-0 ms
Operating mode OFF using the IΔn rotary switch
Earth-leakage protection class class A
Earth-leakage protection integrated
Thermal memory 20 minutes before and after tripping
Environment
Ambient air temperature for storage -50-85 °C
Pollution degree 3 conforming to IEC 60947-1
Electrical shock protection class class II
IP degree of protection IP40 conforming to IEC 60529
Standards EN/IEC 60947-2
Ambient air temperature for operation -25-70 °C
Packing Units
Unit Type of Package 1 1
Number of Units in Package 1 1
Package 1 Height 17.0 cm
Package 1 Width 21.0 cm
Package 1 Length 25.0 cm
Package 1 Weight 2.378 kg
Unit Type of Package 2 2
Number of Units in Package 2 2
Package 2 Height 30.0 cm
Package 2 Width 30.0 cm
Package 2 Length 40.0 cm
Package 2 Weight 5.152 kg

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