Pump Control Cabinets

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According to the destination the SHUN-4 ШУН-4 can control the following water pumps:
- fire-pump;
- leakage compensation pump of the hydra-pneumatic tank;
- drainage pump;
- jockey-pump or compressor.

Functions

SHUN-4 fulfils the following functions:
- control of the presence and parameters of three-phase supply;
- control of the main circuits of the device;
- control of the input circuits from the detectors (short circuit, break);
- local switch of the cabinet control type “Automatic” / “Manual” / “Off”;
- sends to the BUNS-01 signals about its state through the two-wired signaling line;
- operates the connected electric drive according to the signals from the BUNS-01 or local commands.
SHUN-4 has the following working modes:
- “Automatic” – the operation of the water pump is carried out according to the commands from BUNS-01 depending on the work logic.
- “Manual” – the operation is realized manually from the front panel of the cabinet.
- “Off” – the contactor is deenergized and the start of the water pump is unavailable.
SHUN-4 can work with three-phase electric motors with the nominal capacity up to 4kW (ground system TN-C or TN-S, picture No.1)

SHUN-4 consists of a metal box (picture No.2) with the following elements inside:
1 – lead-in automatic switch;
2 – contactor;
3 – elements of relay protection;
4 – controller;
5 – UPS;
6 – terminals for external circuits connection.

On the front side of the SHUN-4 there are indicators and controls (picture No.3). In the bottom of the cabinet there are 3 gland lead-ins for the cables.

The connection of the SHUN-4 is made with the cable with wire section not more than 4mm2 for the circuits Х12.1-Х12.8 and not more than 0,35 mm2 for other circuits according to the Table No.1
Table No.1

Circuit	Number of the terminal block
Lead-in 380V phase A (cabinet feeding)	X12.1
Lead-in 380V phase B (cabinet feeding)	X12.2
Lead-in 380V phase C(cabinet feeding)	X12.3
Lead-in 380V phase A (motor feeding)	X12.4
Lead-in 380V phase B (motor feeding)	X12.5
Lead-in 380V phase C (motor feeding)	X12.6
Lead-in 380V N (neutral conductor, cabinet feeding)	X12.7
Lead-in 380V N (neutral conductor, motor feeding)	X12.7
Lead-in 380V PE (protective conductor, cabinet feeding)	X12.8
Lead-in 380V PE (protective conductor, motor feeding)	X12.8
* see below	X12.9
* see below	X12.10
Screen	X12.11
* see below	X12.12
* see below	X12.13
Screen	X12.14
* see below	X12.15
* see below	Х12.16
Screen	X12.17
*According to the cabinet’s destination: SHUN-4 for the fire water pump: X12.9 – electrocontact manometer norm X12.10 – electrocontact manometer norm SHUN-4 for the leakage compensation pump or drainage pump: X12.9 – upper level X12.10 – upper level X12.12 – lower level X12.13 – lower level X12.15 – maximum level Х12.16 – maximum level SHUN-4 for the compressor of jockey-pump: X12.9 – electrocontact manometer start X12.10 – electrocontact manometer start X12.12 – electrocontact manometer norm X12.13 – electrocontact manometer norm

Example of connection.is shown in the picture No.4

Picture No.4

The type of work logic of SHUN-4 depends on the type of work logic of the water pump connected to the cabinet. Type and number of the water pump is set by DIP-switches which are placed on the controller. The type of work logic of BUNS-4 depending on the position of the DIP-switches is given in the table No.2.

Main technical parameters