LV power air circuit breakers and switch-disconnectors ... - Piti Group
LV power air circuit breakers and switch-disconnectors ... - Piti Group
LV power air circuit breakers and switch-disconnectors ... - Piti Group
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Performance <strong>and</strong><br />
functionality<br />
Indication contacts<br />
The following Indication contacts are<br />
available:<br />
c St<strong>and</strong>ard version for relay applications.<br />
c Low-level version for control of PLCs<br />
<strong>and</strong> electronic <strong>circuit</strong>s.<br />
c Programmable contacts (M2C <strong>and</strong> M6C)<br />
for advanced monitoring <strong>and</strong> protection<br />
functions.<br />
ON/OFF indication contacts<br />
(OF) (micro<strong>switch</strong> type)<br />
ON/OFF indication contacts<br />
(OF) (rotary type)<br />
Additional ‘fault-trip’<br />
indication contacts (SDE)<br />
Combined contacts<br />
‘ON/OFF’ indication contacts (OF)<br />
c Rotary type changeover contacts are directly driven by the mechanism of<br />
Masterpact NW. These contacts operate when the minimum isolation distance<br />
between the main <strong>circuit</strong>-breaker contacts is reached.<br />
OF<br />
NW<br />
supplied as st<strong>and</strong>ard 4<br />
maximum number 12<br />
breaking capacity (A) st<strong>and</strong>ard minimum load: 100mA/24V<br />
p.f.: 0.3 V AC 240/380 10/6*<br />
AC12/DC12 480 10/6*<br />
690 6<br />
V DC 24/48 10/6*<br />
125 10/6*<br />
250 3<br />
low-level<br />
minimum load: 2mA/15V DC<br />
V AC 24/48 6<br />
240 6<br />
380 3<br />
V DC 24/48 6<br />
125 6<br />
250 3<br />
* st<strong>and</strong>ard contacts: 10 A; optional contacts: 6 A.<br />
‘Fault-trip’ indication contacts (SDE)<br />
Circuit-breaker tripping due to a fault is signalled by:<br />
c A red mechanical fault indicator (reset).<br />
c One changeover contact (SDE).<br />
Following tripping, the mechanical indicator must be reset before the <strong>circuit</strong> breaker<br />
may be closed.<br />
SDE<br />
NW<br />
Supplied as st<strong>and</strong>ard 1<br />
Maximum number 2<br />
Breaking capacity (A) St<strong>and</strong>ard Minimum load: 100mA/24V<br />
p.f.: 0.3 V AC 240/380 5<br />
AC12/DC12 480 5<br />
690 3<br />
V DC 24/48 3<br />
125 0.3<br />
250 0.15<br />
Low-level<br />
Minimum load: 2mA/15V DC<br />
V AC 24/48 3<br />
240 3<br />
380 3<br />
V DC 24/48 3<br />
125 0.3<br />
250 0.15<br />
Combined ‘connected/closed’ contacts (EF)<br />
Circuit closed indication is only provided when the device is in the connected<br />
position <strong>and</strong> <strong>switch</strong>ed on<br />
Each EF contact will reduce the number of (OF) contact block by one off.<br />
EF<br />
NW<br />
maximum number 8<br />
breaking capacity (A) st<strong>and</strong>ard minimum load: 100mA/24V<br />
p.f.: 0.3 V AC 240/380 6<br />
AC12/DC12 480 6<br />
690 6<br />
V DC 24/48 2.5<br />
125 0.8<br />
250 0.3<br />
low-level<br />
minimum load: 2mA/15V DC<br />
V AC 24/48 5<br />
240 5<br />
380 5<br />
V DC 24/48 2.5<br />
125 0.8<br />
250 0.3<br />
36
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