Woodward MRM4, Manual

Page: 427 / 460

Technical Data
Technical Data
Use Copper conductors only, 75°C.
Conductor size AWG 14 [2.5 mm
2 ].
Climatic Environmental Conditions
Type of device Storage Temperature: Operating Temperature:
MRA4 -30°C up to +70°C (-22°F to 158°F) -20°C up to +60°C (-4°F to 140°F)
MRI4 -25°C up to +70°C (-13°F to 158°F) -0°C up to +55°C (-32°F to 131°F)
MRU4 -25°C up to +70°C (-13°F to 158°F) -0°C up to +55°C (-32°F to 131°F)
MRDT4 -25°C up to +70°C (-13°F to 158°F) -20°C up to +55°C (-4°F to 131°F)
MRM4 -25°C up to +70°C (-13°F to 158°F) -0°C up to +55°C (-32°F to 131°F)
Permissible Humidity at Ann. Average: <75% rel. (on 56d up to 95% rel.)
Permissible Installation Altitude: <2000 m (6561.67 ft) above sea level
If 4000 m (13123.35 ft) altitude apply a changed classification of
the operating and test voltages may be necessary.
Degree of Protection EN 60529
HMI front panel with seal IP54
HMI front panel without seal IP50
Rear side terminals IP20
Routine Test
Insulation test acc. to IEC60255-5: All tests to be carried out against earth and other input- and
output circuits
Aux. voltage supply, digital inputs,
current measuring inputs, signal relay
outputs:
2.5 kV (eff) / 50 Hz
Voltage measuring inputs: 3.0 kV (eff) / 50 Hz
All wire-bound communication interfaces: 1.5 kV DC
Housing
Housing B2: height/-width 173 mm (6.811” / 4 U)/ 212.7 mm (8.374” / 42 HP)
Housing depth (incl. terminals): 208 mm (8.189”)
Material, housing: Aluminium extruded section
Material, front panel: Aluminium/Foil front
Mounting position: Horizontal (±45° around the X-axis must be permitted)
Weight: approx. 2.4 kg (5.291 lb)
EN MRM4 01/11 Page 427