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  4. EXPLOSION-PROOF CONTROL BUTTONS OF КУ-В TYPE

EXPLOSION-PROOF CONTROL BUTTONS OF КУ-В TYPE

Explosion-proof control buttons of КУ-В type are intended for remote and local control of electric drives of machines and mechanisms in technological installations in the explosive area, including dusty environments, as well as signaling the operating modes of these mechanisms.
КУ-В are marked with explosion protection:
exII2G Ех db eb IIС Т6 Gb (Zone 1, Zone 2),
exII 2D Ех tb IIIС Т85°C Db (Zone 21, Zone 22).

IDENTIFICATION CODE STRUCTURE

КУ-В  – Х –  Х1-X2-X3-X4-XX   У1
КУ-В — explosion-proof control button.
Х — enclosure dimensions 1, 2, 3, 4.

Х1…Х4 — type of control or indication element:

КК — red button without fixing;

КЗ — green button without fixing;

КЧ — black button without fixing;

КГ — mushroom button;

КД — double button, green and red without fixation;

ПД – two-position switch;

ПТ – three-position switch;

Type of contact element:
11 – 1NO and 1NC;
20 – 2NО;
02 – 2NC.

СК – red light indicator;

  СЗ – green light indicator;

СЖ – yellow light indicator.

LED supply voltage:
1 — 24 V DC;
2 — 220…380 V AC.

ХХ – cable gland:
M20 (6,5…14 mm);
M25 (11,1…20 mm).
У1 — climatic modification and placement category according to GOST 15150.

Example: КУ-В-4-СК1-КГ02-КД11-ПТ20-М25 У1

Explosion-proof control button for four installed elements:
– СК1 – red light indicator, 24 V DC;
– КГ02 – red mushroom button with fixation, 2NC;
– КД11 – double button, green and red without fixation, 1NO and 1NC;
– ПТ20 – three-position switch, 2NO (NO-0-NO);
– М25 – cable gland М25 (11,1…20 mm).

OPERATION CONDITIONS
DESIGN
TECHNICAL DATA
PLEASE, DO NOT HESITATE TO CONTACT US
OPERATION CONDITIONS
  • height above sea level – no more than 2000 m;
  • ambient temperature: from – 40 to + 45 ° С;
  • vibration loads in the places of installation must correspond to the group of mechanical version M1;
  • the environment should not contain aggressive gases and vapors in concentrations that destroy parts or components of boxes and insulation;
  • working position in space – any.
DESIGN

Structurally КУ-В consist of the enclosure, a cover, contact and light elements, a cable gland and control parts. The enclosures and covers are made from a material with a high degree of mechanical strength. Between the enclosure and the cover are seals to ensure КУ-В protection from external influences, not lower than IP65. КУ-В can be equipped with push buttons without fixation, mushroom push buttons, switches for two or three positions and LED indicators of pantograph operating modes. Explosion-proof brass cable glands with explosion protection marking Ex e II are used for cable entry.
Control buttons are equipped with explosion-proof contact elements with explosion protection marking Ex d II.

TECHNICAL DATA
Parameter name

Units

Value

Rated voltage

V

24 DC/380 AC

Rated current

А

10

Degree of protectionIP

65

PLEASE, DO NOT HESITATE TO CONTACT US

EQUIPMENT FOR THE PETROCHEMICAL INDUSTRY:

Export Department:

Elena Kats
tel.+38 (050) 422-79-27
e-mail: elena.kats@deg.com.ua

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