A.9
M-PACT Plus
Electronic Trip Units
A
B
C
X
Trip Unit
MPRO-27 MPRO-50
Setting Interface
LCD screen allowing access to 4 distinct menu's X X
Touch pad adjustments XX
Multilingual XX
Adjustable manual or automatic RESET option X X
Long Time or Overload Current Protection
13 current settings Ir 1, 0.95, 0.9. 0,85, 0.8, 0.75, 0.7, 0.65, 0.6, 0.55, 0.5, 0.45 & 0.4 x breaker rating In X X
22 thermal protection (C type) time bands available ranging from class 0.5 to 40 (bands at 7.2 x Ir) X X
22 I
2
t protection (F type {fuse} ) time bands available - X
Neutral protection 0-50%-63%-100% X X
Possibility to switch OFF -X
Cooling function and thermal memory X X
Short Time Short-Circuit Current Protection
Setting range from 1.5 to 12 x Ir (LT setting) X X
Steps of 0.5 (a total of 22 settings) X X
Possibility to switch OFF -X
17 time delay settings (STDB) ranging from 30 to 940 milliseconds delay setting,
resulting in 90 to 1000 milliseconds
XX
Clearance times to IEC 40979-1 and IEC 60364
3 I
2
t protection time bands available
Instantaneous Short-Circuit Current
• Standard
Ii setting range from 2 to 15 x breaker rating In X X
Steps of 0.5 (a total of 28 settings) X X
Possibility to switch OFF XX
Selective execution XX
Fixed instantaneous or HSIOC protection X X
• Reduced
Ii setting range from 1.5 to 15 x Ie (primary setting) - X
Steps of 0.5 (a total of 29 settings) - X
Possibility to switch OFF -X
Remote and local ON and OFF with position indication signal - X
Ground or Earth Fault Protection
Setting range from 0.1 to 1 x In (breaker rating)
(1)
•
(1)
•
(1)
Steps of 0.01 (a total of 92 settings) • •
Possibility to switch OFF ••
14 time delay settings (GFDB) ranging from 50 to 840 milliseconds delay setting,
resulting in 110 to 900 milliseconds
••
Clearance times to IEC 40979-1 and IEC 60364 • •
3 I
2
t protection time bands available • •
1 I
4
t protection time bands available • •
Residual principle (UEF application possible) • •
Source ground return principle - •
UEF, REF and SEF applications possible - •
Combinations of UEF, REF and SEF applications possible - •
Other Functions
Current measurement (L1, L2, L3, N) X X
Trip target (trip reason indication) X X
Trip info (magnitude / phase) XX
Trip counter XX
Event logger (trip events) XX
General inputs (4 available) -X
General relay outputs (4 available) - X
Relay based on current level (load shedding) - X
Good & bad health indicator -X
Watchdog -X
Communication 2 way -X
Modbus -X
(1)
24V DC auxiliary power supply • •
Test kit with power support function • •
(1) 24V auxiliary power supply is required.
Key
X = Present
• = Optional
- = Not possible