Schneider LV433967 Compact Nsx — now discontinued, supplied from remaining surplus and broker stock.
| Parameter | Value |
|---|---|
| Display type | LCD display |
| Network type | AC |
| Protection type | L : for overload protection (long time) S : for short time short-circuit protection I : for instantaneous short-circuit protection |
| Range of product | ComPact NSX400...630 |
| Type of measurement | Energy meter |
| Product or component type | Trip unit |
| Long-time protection delay adjustment type tr | Adjustable |
| Short-time protection delay adjustment type tsd | Adjustable |
| Short-time protection pick-up adjustment type isd | Adjustable |
| Instantaneous protection pick-up adjustment type ii | Adjustable |
| Earth-leakage protection sensitity adjustment type iδn | Adjustable |
| Earth-leakage protection time delay adjustement type δt | Adjustable |
| Parameter | Value |
|---|---|
| Long-time pick-up adjustment type ir (thermal protection) | Adjustable 9 settings |
| [Ue] rated operational voltage | 440 V AC 50/60 Hz |
| Trip unit rated current | 400 A at 40 °C |
| Network frequency | 50/60 Hz |
| Poles | 4P |
| Protected poles description | 3t 3t + N/2 4t 3t + OSN |
| IP degree of protection | IP40 conforming to IEC 60529 |
| Communication of data | Instantaneous and demand values Energy metering Protection and alarm settings Time-stamped histories and event tables Demand current and power Earth leakage current Test reports Maximeters/minimeters Power quality Maintenance indicators |
| Pollution degree | 3 conforming to IEC 60947-1 |
| Standards | UL 508 EN 60947-2 IEC 60947-2 NEMA AB1 |
| Range | ComPact |
| Thermal memory | 20 minutes before and after tripping |
| Trip unit name | MicroLogic 7.3 E AL |
| Local signalling | Flashing LED (green) for ready to operate LED 105 % Ir (red) for overload LED 90 % Ir (orange) for overload |
| Neutral position | Left |
| Device application | Distribution |
| Trip unit technology | Electronic |
| Earth-leakage protection | Integrated |
| Neutral protection settings | 0.5 x Ir (3t + N/2) 1 x Ir (4t) 1.6 x Ir (3t + OSN) No protection (3t) |
| Earth-leakage protection class | Class A |
| Trip unit protection functions | LSI |
| 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 | 15...400 s at 1.5 x Ir 0.35...11 s at 7.2 x Ir 0.5...16 s at 6 x Ir |
| [Ir] long-time protection pick-up adjustment range | 160...400 A |
| [tsd] short-time protection delay adjustment range | 0...0.4 s |
| [Isd] short-time protection pick-up adjustment range | 1.5...10 x Ir |
| [Ii] instantaneous protection pick-up adjustment range | 4800 A Compact NSX630 1.5...12 x In Compact NSX400 |
| [δt] earth-leakage protection time delay adjustment range | 60 ms 0 ms 500 ms 1 s 150 ms |
| [IΔn] earth-leakage protection sensitivity adjustment range | 10 A 300 mA 3 A 1 A 500 mA 5 A |
The LV433967 is a MicroLogic 7.3 E AL electronic trip unit for the Schneider ComPact NSX range, rated 400 A with 4 poles and LSI protection — long-time, short-time, and instantaneous. It fits both ComPact NSX400 and NSX630 breaker frames, carries an LCD display for energy metering and event logs, and is certified to UL 508, IEC 60947-2, EAC, CCC, and CB.
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