1
2
3
4
399-131
6
5
7
8
280 ±3
208 3 FOR SHORT FLARE VERSION
64.5 1 (POS. 1 & 2)
68.0 1 POS. 3
2/
30 ±1
75.90 ±2
143 ±2
19°
POS. 3
200 ±2
POS. 1
B
19°
30 ±1
POS. 2
C
2 ENTRIES MAX.
185 ±2
FIXING HOLE
13 ±1
FIXING HOLES
9 ±1
2 POSITIONS
3/
12
DO NOT SCALE
CERTIFICATION:
ATEX Ex d Gas: Cert. no. Baseefa13ATEX0229X.
Ex II 2 G Ex d IIC T4/T5/T6 Gb.
ATEX Ex d Gas & Dust: Cert. no. Baseefa13ATEX0231X.
Ex II 2 GD Ex d IIC T4/T5/T6 Gb
Ex tb IIIC T135°C/T100°C/T85°C Db IP66.
ATEX Ex de Gas: Cert. no. Baseefa13ATEX0232X.
Ex II 2 G Ex de IIC T4/T5/T6 Gb.
ATEX Ex de Gas & Dust: Cert. no. Baseefa13ATEX0233X.
Ex II 2 GD, Ex de IIC T4/T5/T6 Gb
Ex tb IIIC T135°C/T100°C/T85°C Db IP66.
IECEx Ex d Gas: Cert. no. IECEx BAS 13.0112X.
Ex d IIC T4/T5/T6 Gb.
IECEx Ex d Gas & Dust: Cert. no. IECEx BAS 13.0113X.
Ex d IIC T4/T5/T6 Gb
Ex tb IIIC T135°C/T100°C/T85°C Db IP66.
IECEx Ex de Gas: Cert. no. IECEx BAS 13.0114X.
Ex de IIC T4/T5/T6 Gb.
IECEx Ex de Gas & Dust: Cert. no. IECEx BAS 13.0115X.
Ex de IIC T4/T5/T6 Gb
Ex tb IIIC T135°C/T100°C/T85°C Db IP66
A
B
C
AMBIENT TEMPERATURE RANGE AND T-RATINGS - SEE TABLE
5/ ENCLOSURE AND COVER MATERIAL: GLASS REINFORCED POLYESTER
D
6/ MAIN FLARE MATERIAL: FLAME RETARDANT THERMOPLASTIC POLYESTER
255.5 3
323.5 3 FOR LONG FLARE VERSION
37 ±1
147.5 2
25°
230 ±2
11
4/ WEIGHT - Ex d UNITS: 5.0 0.3Kg, Ex de UNITS: 5.8 0.3Kg
Ex de SHORT FLARE VERSION
WITH OPTIONAL SWIVEL STIRRUP
D
10
NOTES:
1/ UNIT TYPE: DB4B LOUDSPEAKER
Ex d LONG FLARE VERSION
WITH STANDARD STIRRUP
A
9
7/ STIRRUP AND COVER FIXINGS: STAINLESS STEEL GRADE 316
8/ OPTIONAL DUTY/TAG LABELS, LETTER SIZE 5mm MAX.
9/ Ex d UNIT TERMINALS ARE SUITABLE FOR UP TO 2.5mm² MAX.
10/ CABLE ENTRIES: UP TO 2xM20 OR 2x1/2" NPT IN POSITIONS SHOWN.
E
25°
30°
FOR UNITS WITH 2 ENTRIES, POSITIONS 1 AND 2 ARE USED. FOR UNITS
WITH A SINGLE ENTRY, POSITION 3 IS USED.
145.5 ±2
30°
BLANKING PLUGS ARE AVAILABLE.
Ex de UNITS ARE SUPPLIED WITH 2xM20 ENTRIES ONLY, WITH OR WITHOUT
A BLANKING PLUG
F
MAX.
POWER
9 ±1 TYP.
2 ENTRIES
8W
ALL DIMENSIONS ARE COMMON TO ALL UNIT VARIATIONS UNLESS OTHERWISE STATED
G
15W
25W
Tamb. Ex d
Tamb. Ex de
TG
TD
-55°C to +70°C
-55°C to +55°C
-55°C to +40°C
-55°C to +65°C
-55°C to +55°C
-55°C to +40°C
-55°C to +55°C
-55°C to +40°C
-50°C to +70°C
-50°C to +55°C
-50°C to +40°C
-50°C to +65°C
-50°C to +55°C
-50°C to +40°C
-50°C to +55°C
-50°C to +40°C
T4
T5
T6
T4
T5
T6
T4
T5
T135°C
T100°C
T85°C
T135°C
T100°C
T85°C
T135°C
T100°C
MEDC
DRAWN BY:
GENERAL TOLERANCES
UOS
ISSUES
H
LINEAR: 0.25
SURFACE FINISH:
2
3
4
5
6
7
ALL DIMENSIONS ARE
IN MILLIMETRES UNLESS
OTHERWISE STATED
REMOVE ALL BURRS
AND SHARP CORNERS
ANGULAR: 0.5
1
E
3.2
8
MACHINE
SYMBOLS THUS
THIS DRAWING IS CONFIDENTIAL
AND IS THE PROPERTY OF
MEDC AND MUST NOT BE
REPRODUCED EITHER WHOLLY
OR PARTLY. ALL RIGHTS
IN RESPECT OF PATENTS,
DESIGNS AND COPYRIGHT
ARE RESERVED
9
P.FISHWICK
CHECKED BY:
D.COATES
APPROVED BY:
G
MEDC ltd, Colliery Road, Pinxton DESIGNERS & MANUFACTURERS
Nottingham, NG16 6JF. U.K.
OF ELECTRICAL & ELECTRONIC
Tel: +44 (0)1773 864100
EQUIPMENT & SYSTEMS
Fax: +44(0)1773 582800
FOR HAZARDOUS
e-mail: Info@medc.com
web:www.medc.com
AREAS
DATE:
TITLE:
12-02-2014
DATE:
14/02/2014
DATE:
P.FISHWICK
14/02/2014
SCALE:1:2
A2
10
F
SHT
1
DB4B LOUDSPEAKER
ATEX / IECEx CUSTOMER GA
DWG NO.
11
399-131
OF
1
REVISION
12
A
H