|Certificate Type||Product Description||Certificate|
|Permits of the Republic of Kazakhstan||PVK-XXXX|
|Maritime Register of Shipping||PVK-XXXX|
The stations are intended for remote control of electric drives for machines and mechanisms in stationary plants and on ground, sea vehicles, where they
are driven manually by operator, as well as for signaling associated with the specified electric drives or other electrical devices.
The stations with 1Ex d e IIC T6 Gb , 2ExedIICT6, 2ExnACIICT6, 2ExnAIIT6 explosion protection marking are intended for operation within explosion hazardous industrial areas, vehicles and storage facilities for products of chemical, oil-refining, gas and other branches of industry.
Multibutton stations are arranged in enclosures OEAM-, OEAP- 2, 3, 4, 5 depending on number of button cells and the possibility of their arrangement in the enclosure.
Enclosure of PVK station consists of body and cover. By the Customer’s request inside the enclosure button cells with contact blocks of BKV type ensuring switching of electric circuits; instruments; switches; light indicators are installed on the cover. “Stop” button drive is made in mushroom form with self-locking. The main actuator of stations is a contact block. The block has one normally open (NO) and one normally closed (NC) contacts. Terminal clamps of block allow connecting of two wires with cross section up to 2.5 mm2 each or one wire with cross section up to 4 mm.
PVK – Х1 – Х2 – Х3 – Х4 – Х5 – Х6 – Х7 – Х8 – Х9
Х1 – designation of used enclosure and its overall dimensions
Х2 – number and type of buttons by nPх-nSх diagram, where n- number of buttons, P – cylindrical button “START”, S – mushroom button “STOP”, x -button color (G – green, B – blue, R – red, Bl – black, Y – yellow)
If necessary contact diagram shall be indicated. For standard version of “Start” button 1 normally open contact (1NO) is used, for standard version of “Stop” button 1 normally closed contact (1NC) is used.
For standard version “Stop” button has self-locking. For version without self-locking index “(w/o s/l)” shall be indicated additionally.
In case of button absence X2 index shall not be indicated.
Х3 is an explosion protection marking:
5 – 2ExedIICT6
7 – 2ExnACIICT6
8 – 2ExnAIIT6
14 – 1ExdeIICT6 Gb (including for stations with instruments and Ex-components)
Х4 – number and type of explosionproof switches indicated by the following diagram: ЕхGNА(Х)хn, where:
ЕхGN – explosionproof switch; А – nominal current (12, 20, 25)
Х – number of switching diagram
n – number. In case of switch absence index Х4 is not indicated
Х5 – number and color of light indicators by the diagram: nX(U)
“n” – number; «X»- their color (R – red, G – green; Y – yellow; O – orange; B – blue; W – white)
“U” – voltage of LED lamps
In case of indicator absence X5 index shall not be indicated.
Х6 – instrument by the following diagram: Р(Х Х/Х), where
Р – instrument: A – amperemeter, V – voltmeter
Х – instrument specifications: instrument type, its measuring scale and connection current. Parameters of integrated instruments are indicated in the order in details. In case of instruments absence X6 index shall not be indicated;
Х7 – number and type of terminal clamps: А/nP, where “А” – nominal current, “n” – number. “P” – index indicating use of spring terminals made by WAGO. For terminal screws “P” index is not specified. In case of terminal absence X7 index shall not be indicated.
Х8 – number and type of cable glands: (d)xn(X), where “d” – type, “n” – number, “Х” – arrangement of glands, station side shall be indicated: A – from the left, V – from above, S – from the right (side D – from below – on default). When using glands of VK-VEL series gland material, its type and dimension shall be indicated. On default gland location is from below.
By special order glands can be located on the enclosure bottom
Х9 – type of station climatic version according to GOST 15150: U1, HL1, OM1, T1.
Example of order forming:
That corresponds to:
Station is in metal enclosure with 2ExedllCT6 explosion protection marking containing two “Start” buttons, one “Stop” button, ExGN25 switch of 90 switching diagram, green LED lamp for 220 V, 18 clamps for 24 A, two cable glands of VK-L-VEL 3-М25-Exe type from А side, OM1 climatic version.
Explosion protection marking: 1ExdeIICT6 Gb , 2ExedIICT6, 2ExnACIICT6, 2ExnAIIT6
Material: plastic or aluminum alloy
Degree of dust and moisture protection: IP66
Operation temperature: from -60 °C to +45 °C
Nominal voltage, V:
AC (50 or 60 Hz) – up to 380
DC – up to 220
Nominal current: 16 A
Number of technical conditions: TU 16-89 IMShB.642254.017