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This MicroLogic 2.3 M is a 3 poles 3d electronic trip unit used on ComPacT NSX 400/630 circuit breakers. This 320A rating magnetic trip unit is an optimum choice for motor protection applications. It embeds an adjustable long time protection against overloads. It provides also an adjustable short-time protection and a fixed instantaneous protection against short-circuits. MicroLogic 2.3 M indicates when the thermal image of the rotor and stator is greater than 95% of the permissible temperature rise with a red Alarm LED. 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 | |
| Device application | motor |
| Range compatibility | ComPacT new generation NSX630, ComPacT new generation NSX400 |
| Trip unit technology | electronic |
| Network type | AC |
| 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) |
| Protected poles description | 3D |
| Range of product | ComPacT NSX400...630 new generation |
| Trip unit name | MicroLogic 2.3 M |
| Poles description | 3P |
| Product or component type | trip unit |
| Trip unit protection functions | LSoI |
| [Ue] rated operational voltage | 690 V AC 50/60 Hz |
| [In] rated current | 320 A at 65 °C |
| Network frequency | 50/60 Hz |
| Complementary | |
| Short-time pick-up adjustment type Isd | adjustable 9 settings |
| Long time pick-up adjustment type Ir | adjustable 9 settings |
| Zone selective interlocking ZSI | without |
| Earth-leakage protection | without |
| Thermal memory | 20 minutes before and after tripping |
| Motor tripping class | 5, 20, 10 |
| [tr] long-time delay adjustment range | 20-20 s at 7.2 x Ir for trip class 20, 26-26 s at 6 x Ir for trip class 20, 480-480 s at 1.5 x Ir for trip class 20, 10-10 s at 7.2 x Ir for trip class 10, 13.5-13.5 s at 6 x Ir for trip class 10, 240-240 s at 1.5 x Ir for trip class 10, 5-5 s at 7.2 x Ir for trip class 5, 6.5-6.5 s at 6 x Ir for trip class 5, 120-120 s at 1.5 x Ir for trip class 5 |
| Long time delay adjustment type | fixed |
| Complementary motor protection | phase unbalance |
| Long time pick-up adjustment range | 160...320 A |
| Instantaneous pick-up adjustment range | 4800 A |
| Short-time delay adjustment type | fixed |
| [Isd] short-time pick-up adjustment range | 5...13 x Ir |
| Local signalling | LED 95 % Ith (red) for temperature over set point, flashing LED (green) for ready to operate |
| Instantaneous pick-up adjustment type Ii | fixed |
| Environment | |
| Ambient air temperature for storage | -50-85 °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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