Complementary
Long-time pick-up adjustment type Ir (thermal protection)	Adjustable 9 settings
[Ir] long-time protection pick-up adjustment range	18...40 A
Long-time protection delay adjustment type tr	Adjustable
[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
Neutral protection settings	0.5 x Ir (3D + N/2); 1 x Ir (4D); 1.6 x Ir (3D + OSN); No protection (3D)
Thermal memory	20 minutes before and after tripping
Short-time protection pick-up adjustment type Isd	Adjustable
[Isd] Short-time protection pick-up adjustment range	1.5...10 x Ir
Short-time protection delay adjustment type tsd	Adjustable
[tsd] Short-time protection delay adjustment range	0…0.4 s I²t=off; 0.1…0.4 s I²t=on
Instantaneous protection pick-up adjustment type Ii	Adjustable
[Ii] instantaneous protection pick-up adjustment range	1.5...15 x In
Earth-leakage protection	Integrated
Earth-leakage protection class	Class A
Earth-leakage protection sensitity adjustment type IΔn	Adjustable
[IΔn] earth-leakage protection sensitivity adjustment range	0.03 A; 0.1 A; 0.3 A; 0.5 A; 1 A; 3 A; 5 A
Earth-leakage protection specific mode	OFF using the IΔn rotary switch
Earth-leakage protection time delay adjustement type Δt	Adjustable
[Δt] Earth-leakage protection time delay adjustment range	0 ms; 60 ms; 150 ms; 500 ms; 1 s
Zone selective interlocking ZSI	Without
Local signalling	Flashing LED (green) for ready to operate; LED 105 % Ir (red) for overload; LED 90 % Ir (orange) for overload
Display type	LCD display
Type of measurement	Energy meter
Communication of data	Maintenance indicators; Instantaneous and demand values; Time-stamped histories and event tables; Maximeters/minimeters; Earth leakage current; Demand current and power; Power quality; Test reports; Protection and alarm settings; Energy metering
Contractual warranty
Warranty (in months)	18
Environment
Standards	EN/IEC 60947-2
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
Ambient air temperature for storage	-40…85 °C
Logistical informations
Country of origin	CN
Main
Range	ComPacT
Range of product	ComPacT NSX100...250
Product or component type	Trip unit
Trip unit name	MicroLogic 7.2 E
Trip unit technology	Electronic
Range compatibility	ComPacT NSX160; ComPacT NSX100; ComPacT NSX250
Device application	Distribution
Poles description	4P
Protected poles description	3D + N/2; 4D; 3D + OSN; 3D
Neutral position	Left
Trip unit protection functions	LSIR
Protection type	L : for overload protection (long time); S : for short time short-circuit protection; I : for instantaneous short-circuit protection; R : for earth-leakage protection
Trip unit rating	40 A at 40 °C
[Ue] rated operational voltage	440 V AC 50/60 Hz
Network type	AC
Network frequency	50/60 Hz
Circuit breaker mounting mode	Fixed
Packing Units
Unit Type of Package 1	PCE
Number of Units in Package 1	1
Package 1 Height	10.0 cm
Package 1 Width	11.0 cm
Package 1 Length	15.0 cm
Package 1 Weight	795.0 g
Unit Type of Package 2	S03
Number of Units in Package 2	10
Package 2 Height	30 cm
Package 2 Width	30 cm
Package 2 Length	40 cm
Package 2 Weight	8.324 kg

This MicroLogic 7.2 E (Energy) 4-pole 4d electronic trip unit is an electronic trip unit used on ComPacT NSX 100/160/250 circuit breakers. This electronic trip unit with a rating of 40 A is an optimal choice for all standard and special applications. It has customizable long-term protection against overloads. It also offers customizable short-time delayed short-circuit protection and instantaneous short-circuit protection. The Vigi MicroLogic 7.2 E trip unit offers integrated, adjustable residual current protection. MicroLogic 7.2 E indicates overloads with alarm LEDs. The green Ready LED flashes when the circuit breaker is ready to trip. MicroLogic 7.2 E is equipped with a display module that provides energy measurements and allows fine adjustment. A residual current pre-alarm can be available remotely by installing the optional SDx module (LV429532). This product is part of our EcoStruxure Power architecture when combined with the PowerTag NSX and ComPacT NSX basic switch.