Additional features
[Ir] type of long-time pickup setting (thermal protection)	9 adjustable settings
[Ir] Long-time protection pick-up adjustment range	40 - 100 A
[tr] Type of long-time protection delay adjustment	Adjustable
[tr] adjustable long-time delay 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
Thermal storage	20 minutes before and after tripping
[Isd] type of short-time protection setting	9 adjustable settings
[Isd] Short-time protection adjustment range	1,5 - 10 x Ir
[tsd] Type of short-time protection delay adjustment	Adjustable
[tsd] Short-time delay adjustment range	0…0.4 s I²t=off; 0.1…0.4 s I²t=on
[Ii] type of instantaneous short-circuit protection setting	Adjustable
[Ii] setting range of instantaneous short-circuit protection	1,5 - 12 x In
Earth fault protection	None
Zoneselective interlock ZSI	With
Local signalling	Blinking LED (green) for ready; LED 105 % Ir (red) for overload; LED 90 % Ir (orange) for overload
Display type	LCD display
Measured value type	Ammeter
Data transmission	Energy consumption measurement; protection and alarm settings; time-stamped trends and event logs; instantaneous and requested values; maintenance indicators; current and line query; power supply quality; maximeter/minimeter
Electrical data recording	Maintenance indicators
Contractual warranty
Warranty (in months)	18
Main features
Product series	ComPacT
Product or component type	Trip unit
Trigger name	MicroLogic 5.2 A-Z
Trigger technology	Electronic
Compatible product family	ComPacT NSX100; ComPacT NSX160; ComPacT NSX250
Device application	16 Hz 2/3 networks
Pole description	3P
Description of protected poles	3D
Tripping unit protection functions	LSI
Degree of protection	L : for overload protection (long-time); S : for short-time short-circuit protection; I : for instantaneous short-circuit protection
Rated value of tripping unit	100 A at 40 °C
[Ue] Rated operational voltage	250/500 V AC 16 Hz 2/3
Mounting type of power switch	Fixed
Mounting
Standards	EN/IEC 60947-2
Protection class for electric shocks	Class II
Pollution degree	3 corresponds to IEC 60947-1
Degree of protection (IP)	IP40 complies with IEC 60529
Operating ambient temperature	-25…70 °C
Ambient temperature during storage	-40…85 °C
Packaging units
VPE 1 type	PCE
Number of devices per package	1
VPE 1 height	9,000 cm
VPE 1 width	11,000 cm
VPE 1 length	15,000 cm
Packaging weight (Lbs)	547,000 g
VPE 2 type	S03
VPE 2 quantity	11
VPE 2 height	30 cm
VPE 2 width	30 cm
VPE 2 length	40 cm
VPE 2 weight	6,437 kg
VPE 3 type	P12
VPE 3 quantity	88
VPE 3 height	45,000 cm
VPE 3 width	80,000 cm
VPE 3 length	120,000 cm
VPE 3 weight	63,496 kg

This MicroLogic 5.2 AZ 3-pole 3d electronic trip unit is an electronic trip unit used with ComPacT NSX 100/160/250 circuit breakers. This electronic trip unit with a rating of 100 A is used in special 2/3 distribution systems at 16 Hz for railway applications. It has adjustable long-term protection against overload. It also offers adjustable short-time delayed short-circuit protection and instantaneous short-circuit protection. MicroLogic 5.2 AZ indicates overloads with alarm LEDs. The green Ready LED flashes when the circuit breaker is ready to trip. MicroLogic 5.2 AZ is equipped with a display module that provides current measurements and allows fine adjustments. This product is part of our EcoStruxure Power architecture when combined with the PowerTag NSX and ComPacT NSX basic switch.