MTL Safety Barriers Isolator / Power Supply MTL5553
- Product Name：MTL Safety Barriers Isolator / Power Supply MTL5553
- Product Number：MTL5553
- Brand：MTL
- Views：82
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MTL Safety Barriers Isolator / Power Supply MTL5553
的详细介绍MTL Safety Barriers Isolator / Power Supply MTL5553
MTL Safety Barriers Isolator / Power Supply MTL5553
MTL Safety Barriers Isolator / Power Supply MTL5553
Description
The MTL5553 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 issmall an internal terminator can be enabled by a switch on top of the module.
The MTL5553 complies with requirements of Fieldbus Foundation™ specified power supply Type 133† (IS power supply).
MTL Safety Barriers Isolator / Power Supply MTL5553
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 MTL5553’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 MTL5553 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 dc
† The applicable fieldbus specifications and standards are: Foundation fieldbus™ 31.25kbit/s Physical Layer Profile Specification, document FF-816,
IEC 61158-2: 1993 and ISA-S50.02-1992 for 31.25kbit/s fieldbus systems
MTL Safety Barriers Isolator / Power Supply MTL5553
MTL Safety Barriers Isolator / Power Supply MTL5553
