Eaton MTL 9493-PS Series User manual

MTL 9493-PS-XXX
Intrinsically safe power supply
October 2016
INM MTL 9493-PS-XXX Rev 2
Instruction manual
MTL intrinsic safety solutions

ii INM 9493-PS-XXX Rev 2
DECLARATION OF CONFORMITY
A printed version of the Declaration of Conformity has been provided separately within the
original shipment of goods. However, you can find a copy of the latest version at
http://www.mtl-inst.com/certificates

iii
INM 9493-PS-XXX Rev 2
CONTENTS
DECLARATION OF CONFORMITY .................................................II
GENERAL SAFETY INFORMATION...............................................IV
1 FEATURES ...................................................................1
2 DESCRIPTION ..............................................................1/2
3 DIN-RAIL INSTALLATION METHOD ...............................................3
3.1 Protection of equipment ......................................................................3
3.2 DIN rail mounting............................................................................3
3.2.1 Mounting power supplies on DIN rail .......................................................4
3.2.2 Wiring up power supplies.................................................................4
3.2.3 Ambient temperature considerations .......................................................5
3.3 Power bus - Installation and use................................................................5
3.4 Earth rail and tagging accessories ..............................................................6
3.4.1 Parts list ...............................................................................6
3.5 Assembly ...................................................................................8
3.5.1 Fitting earth rails ........................................................................8
3.5.2 Fitting tagging strips .....................................................................8
3.5.3 Completed assemblies ...................................................................9
4 BACKPLANE MOUNTING VARIANT..............................................10
4.1 Accessories ................................................................................10
4.2 Protection of equipment .....................................................................10
4.3 Backplane mounting ........................................................................10
4.3.1 Surface mounting – with kit SMS01 .......................................................12
4.3.2 T- or G-section DIN-rail mounting –with kit DMK01 ...........................................12
4.4 Backplanes – identification and tagging ........................................................12
4.4.1 Backplane identification labels............................................................12
4.4.2 Tagging strip mounting kit (TSK08) ........................................................12
4.5 Backplanes - earth rails ......................................................................14
4.5.1 Earth rail kit (ERK08) ....................................................................14
4.6 Backplanes – power supply connections ........................................................14
4.6.1 Single backplane .......................................................................14
4.6.2 Interconnection of power supplies for multiple backplanes ....................................14
4.7 Fitting MTL 9493-PS-XXX modules to backplane .................................................14
4.7.1 Installation - Figure 4.15..................................................................14
4.7.2 Module removal - Figure 4.16 .............................................................14
5 ENVIRONMENTAL ............................................................16
6 WASTE REMOVAL INFORMATION ...............................................16
7 APPROVALS .................................................................16
8 ATEX & IECEX CERTIFICATION INFORMATION .................................17/18

iv INM 9493-PS-XXX Rev 2
GENERAL SAFETY INFORMATION
Safety instructions for installation and operating personnel
The operating instructions provided here contain essential safety instructions for installation personnel
and those engaged in the operation, maintenance and servicing of the equipment.
WARNING !
A ‘WARNING’ marked in this way is provided for operator and plant safety and MUST be followed.
CAUTION !
A Caution is provided to prevent damage to the instrument.
NOTE
These are used to guide the user in the operation of the instrument.
Before commencing installation or commissioning:
• Read and understand the contents of this manual
• Ensure installation and operating personnel have received adequate training for this task
• Ensure that any operating instructions are fully understood by the personnel responsible.
• Observe national and local installation and mounting regulations (e.g. IEC 60079-14).
WARNING !
These assemblies may not be used in explosion-hazard area applications if they have been used
previously in general electrical installations.
WARNING !
The responsibility for planning, installation, commissioning, operation and maintenance, particularly
with respect to applications in explosion-hazard areas, lies with the plant operator.
During operation:
• Make the relevant instructions available at all times to the operating personnel.
• Observe safety instructions.
• Observe national safety and accident prevention regulations.
• Operate the equipment within its published specification.
• Servicing, maintenance work or repairs not described in this manual must not be performed without
prior agreement with the manufacturer.
• Any damage to this equipment may render its explosion protection null and void.
• No changes to any of the components that might impair their explosion protection are permitted.
If any information provided here is not clear:
Contact Eaton’s MTL product line or an authorised distributor or sales office.
NOTE
Improper installation and operation of the enclosure can result in the invalidation of the guarantee.

1
INM 9493-PS-XXX Rev 2
1 FEATURES
• Isolated power supply
• Zone 2 mountable
• DIN-rail or backplane mounting
• ATEX / IECEx approvals
• Range of Ex ia output voltages available
• Power over Ethernet option (PoEx)*
• Multiple outputs achieved by ganging MTL 9493-PS-XXX modules using 24V DC
power distribution backplane
*Note – PoEx is a simple adaptation of the IEEE 802.3af Power over Ethernet (PoE)
standard to bring the benefits to the 9400 Range of Hazardous Area devices. This
allows two spare pairs in the existing Cat5e cable to distribute the power supplied
to a 9466 Ethernet Switch (Power Sourcing Equipment – PSE) to each of the devices
connected to its five ports (PD – Powered Device). This adaptation is necessary due to
restrictions for Hazardous Area use. It is not implied that the device conforms to the
802.3af (PoE) standard.
2 DESCRIPTION
The MTL 9493-PS-XXX Power Supply is a general purpose intrinsically safe power supply unit. It
takes a 24v DC safe area or zone 2 supply and produces an intrinsically safe output available in a
range of different DC voltages. The MTL 9493-PS-XXX may be mounted in a safe area or zone 2
hazardous area.
The output is Ex ia certified for group I, IIA,IIB or IIC, depending on model to suit different
applications. See Figures 2.1 for connection details.
If multiple outputs are required, there is a power distribution backplane available to simplify
MTL 9493-PS-XXX IS Power Supply