MTL Instruments MTL 9493-PS-XXX Data sheet

Technical Data

MTL intrinsic safety solutions

MTL 9493-PS-XXX

Intrinsically safe power supply

• Isolated power supply

• Zone 2 mountable

• DIN-rail or backplane mounting

• ATEX / IECEx certified

• Range of Ex ia output voltages available

• Power over Ethernet option

• Multiple outputs achieved by ganging

9493-PS-XXX modules using 24V DC power
distribution backplane

February 2016
EPS 9493-PS-XXX rev1

The 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 9493-PS-XXX may be mounted in a safe area or Zone 2

hazardous area.

In order to provide multiple outputs as required, the 9493-PS-XXX
power supply module is ganged up to the required number
of ways, either DIN-rail mounted or using the power distribution

backplane to simplify the 24VDC input connection to the modules.

The 9493-PS-XXX power supply module has LED power indication

for both input and output along with internal current liming and

electronic auto-reset circuit breaker action to protect the module in the

event of its output being short-circuited or overloaded.

This also minimizes the power dissipation during the fault to a
negligible level, thus improving reliability.

The output is Ex ia certified for Group I, IIA,IIB or IIC, depending
on model to suit different applications.

Measurement Technology Limited,
Great Marlings, Butterfield, Luton
Beds, LU2 8DL, UK.
Tel: + 44 (0)1582 723633 Fax: + 44 (0)1582 422283
E-mail: [e-mail]
www.mtl-inst.com

© 2016 MTL
All Rights Reserved
Publication No. EPS 9493-PS-XXX rev1 030216
February 2016

1

9493-PS-XXX

Minimum output voltage

Minimum output voltage

Minimum output voltage

Minimum output voltage

Intrinsically safe power supply

February 2016

SPECIFICATION

See also System Specification

9493-PS-B5

Power input

Input Voltage
24V DC (20-30V)
Input Current @ 24V

83mA

Power output

[Ex ia IIB] Output (pins 1 & 3)

Nominal Output Voltage

4.8V … 5.2V
Nominal Output Current
250mA (Max 550mA)

Uo

5.4V

Graph shows normal working range & total available range

9493-PS-C6

Power input

Input Voltage
24V DC (20-30V)
Input Current @ 24V

122mA

Power output

[Ex ia IIC] Output (pins 1 & 3)

Nominal Output Voltage

5.7V … 6.7V
Nominal Output Current
300mA (Max 550mA)

Uo

7V

Graph shows normal working range & total available range

5.2

4.8

4.3

0

2500

550

Equivalent circuit

1.6

5.2V

9493-PS-C5

Power input

Input Voltage
24V DC (20-30V)
Input Current @ 24V

61mA

Power output

[Ex ia IIC] Output (pins 1 & 3)

Nominal Output Voltage

4.8V … 5.2V
Nominal Output Current
180mA (Max 550mA)

Uo

5.4V

Graph shows normal working range & total available range

6.7

5.7

4.9

0

3000

550

Equivalent circuit

3.3

6.7V

9493-PS-C9

Power input

Input Voltage
24V DC (20-30V)
Input Current @ 24V

165mA

Power output

[Ex ia IIC] Output (pins 1 & 3)

Nominal Output Voltage

8.4V … 9.7V
Nominal Output Current
300mA (Max 550mA)

Uo

10V

Graph shows normal working range & total available range

5.2

4.8

3.9

0

2

Equivalent circuit

2.2

5.2V

1800

550

9.7

8.5

7.5

Equivalent circuit

4

9.7V

0

3000

550

9493-PS-XXX

Minimum output voltage

Minimum output voltage

Minimum output voltage

Minimum output voltage

Intrinsically safe power supply

February 2016

SPECIFICATION (continued)

See also System Specification

9493-PS-C11

Power input

Input Voltage
24V DC (20-30V)
Input Current @ 24V

196mA

Power output

[Ex ia IIC] Output (pins 1 & 3)

Nominal Output Voltage

9.9V … 11.7V
Nominal Output Current
300mA (Max 550mA)

Uo

12V

Graph shows normal working range & total available range

9493-PS-B14

Power input

Input Voltage
24V DC (20-30V)
Input Current @ 24V

201mA

Power output

[Ex ia IIB] Output (pins 1 & 3)

Nominal Output Voltage

12.4V … 14.7V
Nominal Output Current
250mA (Max 260mA)

Uo

15V

Graph shows normal working range & total available range

11.7

10.2

8.9

0

3000

550

Equivalent circuit

5

11.7V

9493-PS-C12

Power input

Input Voltage
24V DC (20-30V)
Input Current @ 24V

175mA

Power output

[Ex ia IIC] Output (pins 1 & 3)

Nominal Output Voltage

10.8V … 12.7V
Nominal Output Current
250mA (Max 260mA)

Uo

13V

Graph shows normal working range & total available range

14.7

12.6

12.5

0

2500

260

Equivalent circuit

8.4

14.7V

9493-PS-C14

Power input

Input Voltage
24V DC (20-30V)
Input Current @ 24V

104mA

Power output

[Ex ia IIC] Output (pins 1 & 3)

Nominal Output Voltage

12.4V … 14.7V
Nominal Output Current
120mA (Max 260mA)

Uo

15V

Graph shows normal working range & total available range

12.7

10.8

10.7

0

3

Equivalent circuit

7.6

12.7V

2500

260

14.7

12.4

9.7

Equivalent circuit

19.2

14.7V

0

1200

260

9493-PS-XXX

Minimum output voltage

Minimum output voltage

Intrinsically safe power supply

February 2016

SPECIFICATION (continued)

See also System Specification

9493-PS-B17

Power input

Input Voltage
24V DC (20-30V)
Input Current @ 24V

163mA

Power output

[Ex ia IIB] Output (pins 1 & 3)

Nominal Output Voltage

15.0V … 17.7V
Nominal Output Current
160mA (Max 260mA)

Uo

18V

Standard stock range

P/N Gas

Group

9493-PS-C5 IIC 5.4V 4.8V … 5.2V 180mA

9493-PS-B5 IIB 5.4V 4.8V … 5.2V 250mA

9493-PS-C6 IIC 7V 5.7V … 6.7V 300mA

9493-PS-C9 IIC 10V 8.4V … 9.7V 300mA

9493-PS-C11 IIC 12V 9.9V … 11.7V 300mA

9493-PS-C12 IIC 13V 10.8V … 12.7V 250mA

9493-PS-C14 IIC 15V 12.4V … 14.7V 120mA

9493-PS-B14 IIB 15V 12.4V … 14.7V 250mA

9493-PS-C17 IIC 18V 15.0V … 17.7V 60mA

9493-PS-B17 IIB 18V 15.0V … 17.7V 160mA

Uo Nominal

output

voltage

Nominal

output
current

Graph shows normal working range & total available range

17.7

15.0

13.3

0

1600

260

Equivalent circuit

16.9

17.7V

9493-PS-C17

Power input

Input Voltage
24V DC (20-30V)
Input Current @ 24V

74mA

Power output

[Ex ia IIC] Output (pins 1 & 3)

Nominal Output Voltage

15.0V … 17.7V
Nominal Output Current
60mA (Max 160mA)

Uo

18V

NOTE: More variants outside the Standard Stock Range can be
ordered, subject to an MOQ. Please contact MTL product line for
further detail

Graph shows normal working range & total available range

17.7

15.0

10.5

0

4

600

160

Equivalent circuit

45

17.7V

9493-PS-XXX
Intrinsically safe power supply

February 2016

SPECIFICATION (continued)

Connectors

9493-PS-XXX is supplied with one IS output connectors.
Capacity 2.5mm
(When using crimp ferrules for the IS connectors the metal tube

length should be 12mm and the wire trim length 14mm.)

ISOLATION

Isolation - input to output

Um = 253V rms

SAFETY

Location of module

Safe area, Zone 2

Location of field wiring

[Ex ia] output

Zone 0, (Gas group depends on model type)
Model 9493 -PS -CXX, IIC Hazardous area
Model 9493 -PS -BX X, IIB Hazardous area
Model 9493 -PS -A XX , IIA Hazardous area
Model 9493 -PS -MXX, Group 1 Mining

Certification Code

See approvals

Safety description

See certificate

2

stranded or single core

Weight

130 g

ENVIRONMENTAL

Ambient temp

Operating −40°C to +70°C
Storage −40°C to +70°C

Relative Humidity

5 to 95% RH (non-condensing)

Ingress Protection

Select enclosure to suit application, see certificate for information

LED INDICATORS

OFF Flash ON

Pwr (gree n)

IS (green)

24V power fail N/A 24V power OK

IS power fail output overload

IS power OK
or short circuit
present

DIMENSIONS (mm)

MECHANICAL

Mounting

DIN rail

Please contact Eaton MTL product line for ‘ backplane’ option

Dimensions

See diagram

9493-PS-XXX POWER SUPPLY

Measurement Technology Limited,
Great Marlings, Butterfield, Luton
Beds, LU2 8DL, UK.
Tel: + 44 (0)1582 723633 Fax: + 44 (0)1582 422283
E-mail: [e-mail]
www.mtl-inst.com

© 2016 MTL
All Rights Reserved
Publication No. EPS 9493-PS-XXX rev1 030216
February 2016

5

EUROPE (EMEA):

[phone]
[e-mail]

THE AMERICAS:

[phone]
[e-mail]

ASIA-PACIFIC:

[phone]
[e-mail]

The given d ata is only intended as a p roduct
descrip tion and should n ot be regarded as a l egal
warrant y of properties or gu arantee. In the inte rest
of further technical developments, we reserve the
right to make de sign changes.