A52 Installation Guide
Electrical specifications
Voltage input 100–240 V AC (50 to 60 Hz) (mains supply voltage fluctuations
not to exceed 10% of nominal supply voltage)
Power consumption 150 VA
Maximum current 0.8 A
Fuse type 1 × 1.0 A/250 V (5 × 20 mm), slow-blow
Communication specifications
LED Indicate system, hydrogen and moisture status
Digital interfaces IEC61850 MMS available over Ethernet or optical Ethernet
Modbus and DNP3 are available over the following interfaces:
• RS-485
• Ethernet
• Optical Ethernet (100BASE-FX) when equipped
– Wavelength = 1300 nm
– Tx max power = –14 dBm
– Tx min power = –23.5 dBm
– Rx max power = –14 dBm
– Rx min power = –31 dBm
Analogue interfaces Dry-contact relays for alarms
• Maximum voltage: 250 V AC
• Resistive load: 3 A @ 250 V AC, 3 A up to 20 V DC, 50 W up to
250 V DC
4–20 mA inputs when equipped
•
• Compliant with NAMUR NE 43
4–20 mA outputs
•
• Compliant with NAMUR NE 43
Environmental specifications
Operating ambient temperature –50 to +55 °C (–58 to 131 °F)
Operating ambient humidity 5 to 95% relative humidity, non-condensing
Operating altitude –610 to 3000 m (–2001 to 9843 ft.)
Shipping/storage temperature –40 to 70 °C (–40 to 158 °F)
Shipping/storage relative humidity 10 to 100% relative humidity
Shipping/storage atmospheric pressure 500 to 1060 hPa
Pollution degree 2 (internal)
Oil temperature at valve –20 to +100 °C (–4 to 212 °F)
Oil pressure at valve 0 to 10 bar
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