OM-400
Purpose
The limiter of power of OM-400 is intended for management of power contactors (priority and minor loading) or other switching devices by means of contacts of internal relays and provides control of tension of a three-phase network 220/380 B, 50 of Hz and measurement of current, isn't dependent on each phase; and automatic switching off / inclusion of loadings.
Design of system
OM-400 is executed in the case for installation on a DIN lath.
On the front panel of the block are the ZhKI-display; 4 buttons for management of operating modes of the module.
In the top and lower part of the module there are screw terminal block for connection to a controlled network and actuation mechanisms.
The limiter of power of OM-400 is intended for management of power contactors (priority and minor loading) or other switching devices by means of contacts of internal relays and provides control of tension of a three-phase network 220/380 B, 50 of Hz and measurement of current, isn't dependent on each phase; and automatic switching off / inclusion of loadings.
Design of system
OM-400 is executed in the case for installation on a DIN lath.
On the front panel of the block are the ZhKI-display; 4 buttons for management of operating modes of the module.
In the top and lower part of the module there are screw terminal block for connection to a controlled network and actuation mechanisms.
Technical characteristics
* value of the maximum tension of inclusion is 3 V lower than the established value of the maximum tension of switching off
** it is necessary to consider what value 2 … 10 multiple excess the set rated current (depending on character of the connected loadings) taking into account coefficient of transformation of the transformer of current not exceeded 7,5 A on TT1-TT3 plugs.
|
Parameter |
Value |
| Rated working voltage | 220/380 V; 50 Hz |
| Range of parameter setting of the minimum phase tension «U», off/on | 150÷210 |
| Temporary delay of shutdown of the P1 and P2 relay at undervoltage below the established value | 0÷10 с |
| Temporary delay of turning on of the P1 and P2 relay at normalization of tension | 0÷10 s |
| Range of parameter setting of the maximum phase tension of switching off «U»* | 230÷270 V |
| The temporary delay of shutdown of the P1 and P2 relay at increase of tension is more than established value, no more | 0,05 s |
| The rated measured current on TT1-TT3 entrances (secondary current of the transformer of current) | 5 А |
| The maximum (short-term) measured current on TT1-TT3 entrances, no more** | 7,5 |
| Primary current of the transformer of current | 5, 10, 15, 20, 25, 30, 40, 50, 60, 75, 80, 100, 150, 200, 250, 300, 400 А |
| Temporary delay of switching off of the P1 and P2 relay at excess of rated current; | 1…10 s |
| Temporary delay of turning on of the P1 and P2 relay at excess of rated current | 1…60 min |
| Temporary delay of repeated turning on of the P1 and P2 relay at excess of rated current; | 60 min |
| The maximum switched current of contact of the internal relay (the AC1 mode of 240 V) | 6 А |
| Dimentions of the block | 71 х 90 х 60 mm |
| Weight, no more | 0,35 kg |
** it is necessary to consider what value 2 … 10 multiple excess the set rated current (depending on character of the connected loadings) taking into account coefficient of transformation of the transformer of current not exceeded 7,5 A on TT1-TT3 plugs.