AJB/D
Junction box for use with
electric trace heating systems JUNCTION BOX
Available for use in safe and hazardous IP66 rated.
areas.
Enclosures suitable for Gas groups IIA, IIB Full range of accessories and termination
and IIC. kits available.
INTRODUCTION
The AJB/D Junction Box comprises a cylindrical
die cast aluminium enclosure with a threaded
cover. The cover incorporates a sealing ring to
offer weatherproofing. The enclosure has four lugs
with plain holes that are used to fix the enclosure
to the mounting surface. Cable entry holes are
provided for the accommodation of suitably
certified cable glands or stopping plugs between
the fixing lugs. External and internal earthing
facilities are provided.
The AJB/D Junction Box is fitted with a general
purpose terminal block, with maximum permitted
dissipated power inside the enclosure is 16.8 W.
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2503 2776
ANDS0504 (08022023) Issue 5
The
Heat Tracing Authority TM
SPECIFICATION
TERMINAL BLOCKS: EARTHING: Internal and external earthing
Weidmuller - Klippon Terminals options available.
Maximum Terminal 83(L) x 33(W) x 26.5(H) ENTRIES:
Block Dimensions
Standard entries are 3 x M20 x 1.5.
Wire Capacity (mm²) Maximum Ratings Alternatives upon request are: M16 x 1.5 and
Type Min Max Volts Amps Qty M25 x 1.5. To order Enclosures with alternative
entries, please provide a full description of your
SAK2.5 0.5 2.5 550 15 10 requirements.
SAK4 0.5 4.0 550 15 8
SAK6N 0.5 6.0 550 18 6
SAK10 2.5 10 550 37 4
C
WDU2.5 0.22 2.5 726 15 8
BK3-BK8 0.5 4.0 275 21 1
MK6/3-4-6 0.5 6.0 418 18 1
Entrelec Terminals
Wire Capacity (mm²) Maximum Ratings A B
Type Min Max Volts Amps Qty
MA2.5/5 0 2.5 380 15 10
BLANKING PLUGS:
M4/6 0 4.0 660 30 8
The equipment is not supplied with blanking plugs
or cable glands, it is the responsibility of the user to
TERMINALS: Electrical connections 2.5mm²
ensure that suitably certified glands/plugs are fitted
terminals (incoming/outgoing) that do not affect the type of protection.
MAX. POWER DISSAPATION: 16.80W A bottom entry may also be fitted with Peppers type
781D breather / drain plug.
APPROX VOLUME: 560cm³ (Sira 10ATEX1307U / IECEx SIR 10.0149U).
Only use approved termination methods that are
APPROVAL DETAILS: provided.
ATEX - CML 19ATEX1461
IECEx - IECEx CML 17.0113
UKEX - CML 21UKEX11134 DIMENSIONS:
EQUIPMENT MARKING:
II 2 G
Ex db IIC T6 Gb
Ta= -50°C≤Ta≤+50°C
93mm
Ex db IIC T4 Gb
130mm
Ta= -50°C≤Ta≤+60°C
INGRESS PROTECTION: IP66
ENCLOSURE: AJB/D 130mm
Material: Cast Aluminium
Ø7.5mm
Finish: Anodised black, Paint, Powder
Coating or Epoxy
Conduit entries: 3 x 6 - 25mm Diameter
Dimensions: 130 x 130 x 93mm
Weight: 4.3kg
Protection: Ex(db)
Area Suitability: Zone 1 or 2 IIA or IIB or IIC
ANDS0504 (08022023) Issue 5
Heat Trace Ltd, Mere’s Edge, Chester Road, Helsby, Frodsham, Cheshire, WA6 0DJ, England.
Tel: +44 (0)1928 726451
www.heat-trace.com Email: info@heat-trace.com
The information given herein, including drawings, illustrations and schematics are intended for illustration purposes only. Heat Trace Ltd makes no warranties as to its accuracy or completeness and
disclaims any liability in connection with its use. Users of Heat Trace Ltd products should make their own evaluation to determine the suitability of each such product for specific applications. In no way
will Heat Trace Ltd be liable for any damages arising out of the misuse, resale or use of the product.
