LV431480
250A 4P NSX250 ML 2.2
Trade Price
£696.18
Per
1
Unit
EA
Pack Quantity
1
Information
This Micrologic 2.2 is a 4 poles 4d 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 an adjustable long time protection against overloads. It provides also an adjustable short-time protection and a fixed instantaneous protection against short-circuits. Micrologic 2.2 indicates overloads with Alarm LEDs. 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.
Technical Specifications
Range
ComPact
Range of produc
ComPact NSX100...250
Product or component type
Trip unit
Trip unit name
MicroLogic 2.2
Trip unit technology
Electronic
Range compatibility
ComPact NSX250
Device application
Distribution
Number of poles
4P
Protected poles description
4t 3t + N/2 3t
Neutral position
Left
Trip unit protection functions
LSoI
Protection type
L : for overload protection (long time) So : for short time short-circuit protection with fixed delay I : for instantaneous short-circuit protection
Trip unit rated current
250 A at 40 °C
[Ue] rated operational voltage
690 V AC 50/60 Hz
Network type
AC
Network frequency
50/60 Hz
Long-time pick-up adjustment type Ir (thermal protection)
Adjustable 9 settings
[Ir] long-time protection pick-up adjustment range
100...250 A
Long-time protection delay adjustment type tr
Fixed
[tr] long-time protection delay adjustment range
11 s at 7.2 x Ir 16 s at 6 x Ir 400 s at 1.5 x Ir
thermal memory
20 minutes before and after tripping
Short-time protection pick-up adjustment type Isd
Adjustable 9 settings
[Isd] Short-time protection pick-up adjustment range
1.5...10 x Ir
Short-time protection delay adjustment type tsd
Fixed
[tsd] Short-time protection delay adjustment range
0.02 s
Instantaneous protection pick-up adjustment type Ii
Fixed
[Ii] instantaneous protection pick-up adjustment range
3000 A
earth-leakage protection
Without
Neutral protection settings
0.5 x Ir (3t + N/2) 1 x Ir (4t) No protection (3t)
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
Standards
UL 508 EN/IEC 60947-2
product certifications
CCC Marine EAC
ambient air temperature for operation
-25…70 °C
Ambient air temperature for storage
-50…85 °C
Unit Type of Package 1
PCE
Number of Units in Package 1
1
Package 1 Height
6.5 cm
Package 1 Width
9.2 cm
Package 1 Length
15.0 cm
Package 1 Weight
570.0 g
Unit Type of Package 2
S03
Number of Units in Package 2
23
Package 2 Height
30.0 cm
Package 2 Width
30.0 cm
Package 2 Length
40.0 cm
Package 2 Weight
13.6 kg
Warranty
18 months
Document Links
Datasheet