Explosion-Proof Aluminium Control Stations KVa

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Technical Specifications

Explosion Protection Markings:
Gas Markings:	1Ex d e IIC T6…T4 Gb X
Dust Markings:	Ex tb IIIC Т85°C… Т135°C Db X
Ingress Protection:	IP66/67
Rated Voltage AC/DC:	Pushbuttons up to 380 V AC/DC; indicator lamps up to 250 V AC and 48 V DC
Rated Current:	up to 10 A
Permissible Ambient Temperature:	-60 to +60ºС
Climatic Design:	NF1 by default; other options (MU1, U1, W1) on request
Material:	low-copper stainless steel
Default Colour:	silver-grey RAL 7001, can be supplied in any colour upon request

Certificates

Enclosure Material	Number of Elements	Fig. No.	L, mm	N, mm	H, mm	T, mm	K, mm	D, mm
KVa-9	1	1	100	100	80	66	86	4,8
KVa-11	3	2	100	160	80	66	146	4,8
KVa-14	1	3	120	122	80	82	106	7
	2	4
KVa-16	3	5	120	220	87	82	204	7
	4	6
KVa-23	9	7	160	260	92,5	110	240	7

In addition to the listed standard designs, customized explosion-proof control stations and panels can be manufactured with any number of control, signalling, and measuring devices. To place an order, please contact our Sales Department.

Detailed information about the control and signalling devices is available at the following link

For reference, a simplified table of control and signalling devices is provided below:

Type	Marking	Current (A) and Voltage (B), up to	Designs	Colours
pushbutton	KVE-2	10 А/380 V	Standard / Standard with illumination / Mushroom type	White, Red, Green, Yellow, Blue, Black
lamp	LVE-2	АС 110-250 V DC 12-48 V	–	White, Red, Green, Yellow, Blue
switch	PVE	10 А/380 V	Standard / With key (various circuit options available)	Black

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КВХ1 – Х2 – (Х3/N3) – А (Хa/Na) – В (Xb/Nb) where,

Enclosure Characteristics:

Х1 – enclosure material (a – aluminium);

Х2 – explosion-proof enclosure index (see Table).

X3/N3 – designation and quantity of devices;

Cable Gland Characteristics:

А (Хa/Na) – type and quantity of cable glands on side A (top);

В (Xb/Nb) – type and quantity of cable glands on side B (bottom);

locations of KVa/KVp and KVs glands

For example, an explosion-proof control station made of aluminium with external dimensions 220×120×90 mm (type KVa-14), equipped with two momentary pushbuttons (black, 1 NC + 1 NO contact) for 220 V, two selector switches with wiring diagram No. 1 for 220–380 V, and one metal gland VVKm32 for unarmoured cable mounted on the bottom side of the enclosure, is designated as follows:

Station KVа–14 – (KVE-2-12-220-1-1-6, PVE-1-01-(220-380)-2) – V (VVKm32/1)

Data Sheet: Appendix