MTL5053 modular

Description

The MTL5053 has been specifically developed to extend
31.25kbit/s (H1) fieldbus networks into hazardous areas. It provides
power and communication to devices powered through the signal
conductors. For installations in which the safe-area bus length is
small an internal terminator can be enabled by a switch on top of
the module.
The MTL5053 complies with requirements of Fieldbus
Foundation™ specified power supply Type 133† (IS power supply).
SPECIFICATION
See also common specification
Location of fieldbus device(s)
Zone 0, IIC, T4–6 hazardous area if suitably certified
Hazardous-area fieldbus power supply
18.4V ± 2%
105Ω ±3% dc impedance
80mA maximum current
Maximum cable length
Determined by IS requirements, depending on other devices
attached and maximum acceptable voltage drop along cable
Digital signal transmission
Compatible with 31.25kbit/s fieldbus systems and complies
with fieldbus standards†
Supply voltage
20 to 35Vdc
LED indicator
Green: one provided for power indication
Power requirement, Vs, with 80mA output load
135mA typical at 24V
105mA at 35V
Power dissipation within unit, with 80mA output load
2.3W typical at 24V
2.6W maximum at 35V
Note: To allow adequate heat dissipation under all likely thermal
conditions, it is recommended that MTL5053’s are installed on a
horizontal DIN-rail mounted on a vertical surface* with a 10mm
space between adjacent units. MTL MS010 10mm DIN-rail module
spacers are available for this purpose.
* If an MTL5053 is mounted in a non-optimum orientation, the
maximum operating temperature is reduced to 45°C.
Isolation
250V ac between safe- and hazardous-area circuits and power
supply
Safety description
Terminals 1 and 2
22V, 102Ω, 216mA; Um = 250V rms or dc18kΩ

MTL5053