Schneider Electric LV433887
MPNLV433887
Obsolete
trip unit MicroLogic 4.2 AL for ComPact NSX 250 circuit breakers, electronic, rating 250A, 3 poles 3d
Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026
Specifications
| Parameter | Value |
|---|---|
| Network type | AC |
| Protection type | L : for overload protection (long time) So : for short time short-circuit protection with fixed delay I : for instantaneous short-circuit protection |
| Range of product | ComPact NSX100...250 |
| Product or component type | Trip unit |
| Long-time protection delay adjustment type tr | Fixed |
| Short-time protection delay adjustment type tsd | Fixed |
| Short-time protection pick-up adjustment type isd | Adjustable |
| Instantaneous protection pick-up adjustment type ii | Fixed |
| Earth-leakage protection sensitity adjustment type iδn | Adjustable |
| Earth-leakage protection time delay adjustement type δt | Adjustable |
| Long-time pick-up adjustment type ir (thermal protection) | Adjustable 9 settings |
| [Ue] rated operational voltage | 440 V AC 50/60 Hz |
All specifications
| Parameter | Value |
|---|---|
| Trip unit rated current | 250 A at 40 °C |
| Network frequency | 50/60 Hz |
| Poles | 3P |
| Protected poles description | 3t |
| IP degree of protection | IP40 conforming to IEC 60529 |
| Pollution degree | 3 conforming to IEC 60947-1 |
| Standards | IEC 60947-2 NEMA AB1 EN 60947-2 UL 508 |
| Range | ComPact |
| Thermal memory | 20 minutes before and after tripping |
| Trip unit name | MicroLogic 4.2 AL |
| 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 |
| Neutral position | Left |
| Device application | Distribution |
| Trip unit technology | Electronic |
| Earth-leakage protection | Integrated |
| Earth-leakage protection class | Class A |
| Trip unit protection functions | LSoI |
| Zone selective interlocking ZSI | Without |
| Ambient air temperature for storage | -40...85 °C |
| Ambient air temperature for operation | -25...70 °C |
| Earth-leakage protection specific mode | OFF using the IΔn rotary switch |
| [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 |
| [Ir] long-time protection pick-up adjustment range | 100...250 A |
| [tsd] short-time protection delay adjustment range | 0.02 s |
| [Isd] short-time protection pick-up adjustment range | 1.5...10 x Ir |
| [Ii] instantaneous protection pick-up adjustment range | 3000 A |
| [δt] earth-leakage protection time delay adjustment range | 150 ms 0 ms 500 ms 60 ms 1 s |
| [IΔn] earth-leakage protection sensitivity adjustment range | 30 mA 500 mA 100 mA 3 A 300 mA 5 A 1 A |
MPN
LV433887