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The WSP300 offers spur protection against short circuits (between + and – terminals), limiting the short circuit current in each spur. During a short circuit situation there is no effect in the other spur or the main trunk. There is a LED to indicate short circuits and WSP300 has an integrated bus terminator in the models F and P.
In normal operation, each short circuit protector consumes less than 3 mA. After removing the short circuit, the spur goes back to normal operation, the protection circuit is disabled and the LED is dimmed.
Main characteristics:
- Intelligent Segment Protector for fieldbus installations in compliance with the IEC61158-2 standard (PROFIBUS-PA and FOUNDATIONTM fieldbus) and for AS-i networks;
- 4, 6 or 8 spurs;
- Intelligent protection against short circuit in each spur, preventing the short circuit propagation. After removing the short circuit, the spur goes back to normal operation;
- For panel mounting or field installation in junction boxes;
- Integral part of JB400 – Intelligent Junction Box;
- Quick and easy installation;
- Maintenance during operation.
To better serve your application, the intelligent segment protector WSP300 is available in the following models:
A – For AS-i networks
F – For FOUNDATIONTM fieldbus networks
P – For PROFIBUS-PA networks
CHARACTERISTICS FOR AS-I
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Physical layer
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In compliance with AS-i standard
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Power supply
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34 Vdc
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Communication protocols
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AS-i
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Maximum trunk current
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8 A
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Quiescent current per spur in normal operation
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< 3 mA
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Maximum current per spur during a short circuit
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280 mA
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Maximum voltage drop per spur
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0,3V
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Number of spurs
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4, 6 or 8
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Spur connections
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Removable 3-pin terminal blocks, 2.5 mm²
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Mounting
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Via DIN rail
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Status LED
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On (red): spur in short circuit condition;
Off: spur in normal operation
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Operation Temperature
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-20°C to 70°C
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Storage
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-40°C to 85°C
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Humidity
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0-95% non-condensing
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Dimensions (mm)
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100x125x57(WSP300-4)
150x125x57(WSP300-6 & WSP300-8)
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CHARACTERISTICS PROFIBUS-PA
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Physical layer
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In compliance with IEC 61158-2
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Power supply
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Bus-powered 9 to 32 Vdc
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Communication protocols
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Profibus-PA and FOUNDATION fieldbus
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Maximum trunk current
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2.5 A
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Quiescent current per spur in normal operation
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< 1 mA
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Maximum current per spur during a short circuit
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50 mA
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Maximum voltage drop per spur
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0.3V@20mA
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Number of spurs
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4, 6 or 8
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Spur connections
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Removable 3-pin terminal blocks, 2.5 mm²
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Surge protector at input
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Cut in 62 V, 1500 W
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Mounting
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Via DIN rail
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Terminator
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100 Ω resistor and 1µF capacitor selectable by switch
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Status LED
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On (red): spur in short circuit condition;
Off: spur in normal operation
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Operation Temperature
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-20°C to 70°C
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Storage
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-40°C to 85°C
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Humidity
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0-95% non-condensing
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Dimensions (mm)
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100x125x57(WSP300-4)
150x125x57(WSP300-6 & WSP300-8)
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