BEKA BA243 Instructions

BA243 Four Channel
Power Isolator Instructions
Blue hazardous
area terminals
The BA243 Power Isolator is CE marked to
show compliance with the European Explosive
Atmospheres Directive 2014/34/EU and the European
EMC Directive 2014/30/EU.
The BA243 Power Isolator is also UKCA marked to
show compliance with UK statutory requirements
Equipment and Protective Systems Intended for Use
in Potentially Explosive Atmospheres Regulations
UKSI 2016:1107 (as amended) and with the
Electromagnetic Compatibility Regulations UKSI
1. INTRODUCTION
These instructions describe the function, certification, installation, safe
use and maintenance of the BEKA BA243 Four Channel Power Isolator.
This isolator is primarily intended for powering BEKA intrinsically safe
Pageant equipment, but may be used to power other intrinsically safe
hazardous area apparatus having compatible intrinsic safety input
parameters.
2. DESCRIPTION
The BA243 Power Isolator has four identical, totally independent,
galvanically isolated intrinsically safe outputs with associated
apparatus certification. It may be installed in a safe area or with
additional mechanical protection in Zone 2.
The BA243 clips onto a standard 35mm DIN rail and may be powered
by any 20 to 30V dc, SELV or PELV supply, or from a supply with
double or reinforced insulation. No earth connection is required. The
status of each channel is indicated by two green LEDs adjacent to the
input and the output terminals.
3. CERTIFICATION
The BA243 Power Isolator has IECEx, ATEX and UKCA [Ex ia Ga] IIC
intrinsic safety associated apparatus certification for installation in a
safe area. It also has increased safety Ex ec component certification
permitting installation in Zone 2 when housed in an Ex e enclosure.
Output status
LED
Input status
LED
Duplicated green
safe area terminals
16th August 2023
2016:1091.
3.1 Associated apparatus Ex i certification
The BA243 has IECEx, ATEX and UKCA associated apparatus intrinsic
safety Ex ia IIC certification:
Copies of these certificates may be downloaded from the BEKA
associates website www.beka.co.uk.
The certificates 'X' suffix indicates that the BA243 must be powered
from a 30V maximum SELV, PELV or supply providing double or
reinforced insulation as explained in section 5.1.
The IECEx, ATEX and UKCA approvals specify the same certification
code and output safety parameters.
Location
Safe area
Issue 3
Certification code
IECEx
ATEX
UKCA
Output parameters of each channel
Each channel is a separate galvanically isolated circuit
Uo
Io
Po
Co
Lo
Lo/Ro =
3.2 Increased safety Ex ec certification
To allow the BA243 to be mounted in Zone 2, it has been issued
with IECEx, ATEX and UKCA Ex ec increased safety component
certification:
Location
Zone 2
Certification code
IECEx
ATEX
UKCA
Output parameters
As associated apparatus Ex ia certification – see 3.1 above.
Copies of these certificates may be downloaded from the BEKA
associates website www.beka.co.uk.
The 'U' suffix indicates that these are component certificates. They
specify that the BA243 must be installed in an enclosure providing
a minimum of IP54 protection which complies with IEC60079-0 and
IEC60079-7, such as an Ex e component approved enclosure.
IECEx IECEx CML 20.0080X
ATEX CML 20 ATEX 2122X
UKCA CML 21 UKEX 2278X
[Ex ia Ga] IIC
II(1) G [Ex ia Ga] IIC
II(1) G [Ex ia Ga] IIC
Gas group
IIC IIB
= 12.4V 12.4V
= 0.67A 0.67A
Maximum output current 130mA
= 1.36W 1.36W
= 1.24µF 7.9µF
= 79µH 317µH
17µH/Ω 68µH/Ω
IECEx IECEx CML 20.0081U
ATEX CML 20 ATEX 2123U
UKCA CML 21 UKCA 3279U
Ex ec [ia Ga] IIC Gc
II 3(1) G Ex ec [ia Ga] IIC Gc
II 3(1) G Ex ec [ia Ga] IIC Gc
-40ºC [ Ta [ +70ºC
-40ºC [ Ta [ +70ºC
-40ºC [ Ta [ +70ºC
IIA
12.4V
0.67A
1.36W
30.0µF
634µH
137µH/Ω
-40ºC [ Ta [ +70ºC
-40ºC [ Ta [ +70ºC
-40ºC [ Ta [ +70ºC