|Certificate Type||Product Description||Certificate|
|Fire Safety Certificate||PVK-PK|
|Permits of the Republic of Kazakhstan||PVK-PK|
The stations are intended for 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. Stations are intended for operation:
with 0ExiаIIСТ0 explosion protection marking – within all explosion hazardous industrial areas, vehicles and storage of products of oil refining, gas and other industries with РО Ехiаl marking in coal and shale minings being dust and gas hazardous including stopes and entries of steep beds being hazardous by coal, rock and gas outbursts, as well as in workings with return ventilation air from such strata.
Pulse piezo buttons (proximity limit switches VB1) are used as switching elements. Circuit breakers consist of static key with piezoelectric
control element. By nature of key response on control force applied to circuit breakers they have two versions:
PVK-PK – OEAM3.2 – 2P (1NO) F(G) – 1P (1NО) F(Y) – 1C (1NC) F(R) – 24 – 3 – 24/8 – 12 х 2 – 25 х 1 – U1
Х1 – designation (or overall dimensions) of used enclosure.
OEAM – aluminum
OEAP – plastic
OEATs – zinc-aluminum alloy
Х2 – number of buttons and contact diagram nP (1NO)F(X)-nS(1NC)F(X), where n-number of buttons, P (1 NO) -Start button with one normally open contact, S(1 NC) – Stop button with one normally closed contact, F – type of piezo button, Х – color of button body: N – natural aluminum, R – red aluminum, G – green aluminum, Y – golden (yellow) aluminum.
Х3 – station nominal voltage: 05-5 V; 09-9 V; 12-12 V; 24-24 V.
Х4 – explosion protection marking: 3- 0ExiaIICT6 or 4-РО Exia
Х5 – number and type of terminal clamps by А/nP diagram, where А – nominal current, n – number,
P – index indicating use of spring terminals made by WAGO. For terminal screws “P” index is not specified.
Х6 – number and type of cable glands, side of their installation by dxn(X) diagram, where d – type of glands; n – their number; Х – arrangement: A – from the left, V – from above, S – from the right. On default gland location is from below. When using glands VK-VEL gland material, its type and dimension shall be indicated.
X7 is a type of station climatic version and arrangement category:
U1 – for 0ExiaIICT6
U5 – for РО Exial
Explosion protection marking: 0ExiаIIСТ6, РО Exial
Material: aluminum, plastic
Degree of dust and moisture protection: IP66
Operation temperature: working:
from -40 °С to +40 °С for U1
from -5 °С to +35 °С for U5
Nominal voltage: up to 24 V
Resistance of On contact: < 10 Ohm
Resistance of Off contact: > 5 Ohm
Capacity: 25 pF
Standard press force: 3–5 N
Pulse current: 120–130 mA
Nominal current: up to 0.2 A
Climatic version and arrangement category: U1, U5
Cross-section of connected cable cores:
at simultaneous connection of two wires – up to 2.5 mm2
at simultaneous connection of one wire – up to 4.0 mm2
Number of technical conditions: TU 16-89 IMShB.642254.017