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This MicroLogic 5.2 E (Energy) is a 3 poles 3d electronic trip unit used on ComPacT NSX 250 circuit breakers. This 250A 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 adjustable short-time protection and instantaneous protection against short-circuits. MicroLogic 5.2 E indicates overloads with Alarm LEDs. The green Ready LED flashes if the circuit breaker is ready to trip. MicroLogic 5.2 E is equipped with a display module that gives energy measurement and allows fine adjustment settings. 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 | |
| Device application | distribution |
| Range compatibility | ComPacT new generation NSX250 |
| Trip unit technology | electronic |
| Network type | AC |
| Mounting mode | fixed |
| Range | ComPacT new generation |
| Protection type | I : for instantaneous short-circuit protection, S : for short time short-circuit protection, L : for overload protection (long time) |
| Protected poles description | 3D |
| Range of product | ComPacT NSX100...250 new generation |
| Trip unit name | MicroLogic 5.2 E |
| Poles description | 3P |
| Product or component type | trip unit |
| Trip unit protection functions | LSI |
| [Ue] rated operational voltage | 690 V AC 50/60 Hz |
| [In] rated current | 250 A at 40 °C |
| Network frequency | 50/60 Hz |
| Complementary | |
| Short-time pick-up adjustment type Isd | adjustable 9 settings |
| Display type | LCD display |
| Long time pick-up adjustment type Ir | adjustable 9 settings |
| Zone selective interlocking ZSI | with |
| Communication of data | maximeters/minimeters, power quality, demand current and power, maintenance indicators, instantaneous and demand values, time-stamped histories and event tables, protection and alarm settings, energy metering |
| Earth-leakage protection | without |
| Thermal memory | 20 minutes before and after tripping |
| [tsd] short-time delay adjustment range | 0.1-0.4 s I²t=on, 0-0.4 s I²t=off |
| [tr] long-time delay adjustment range | 0.5-16 s at 6 x Ir, 0.35-11 s at 7.2 x Ir, 15-400 s at 1.5 x Ir |
| Electrical data recording | maintenance indicators |
| Long time delay adjustment type | adjustable |
| Long time pick-up adjustment range | 100...250 A |
| Instantaneous pick-up adjustment range | 1.5...12 x In |
| Short-time delay adjustment type | adjustable |
| [Isd] short-time pick-up adjustment range | 1.5...10 x Ir |
| Local signalling | LED 90 % Ir (orange) for overload, LED 105 % Ir (red) for overload, flashing LED (green) for ready to operate |
| Instantaneous pick-up adjustment type Ii | adjustable |
| Type of measurement | energy meter |
| Environment | |
| Ambient air temperature for storage | -40-85 °C |
| Electrical shock protection class | class II |
| 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 |
| Standards | EN/IEC 60947-2 |
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