User Manual
EMpro - multifunctional energy measuring devices for DIN rail mounting
8 / 196
PHOENIX CONTACT 109357_en_00
1.3 Field of application of the product
1.3.1 Intended use
The EMpro energy measuring devices described in this user manual are suitable for instal-
lation in electrical systems with different voltage levels and performance classes.
Keep in mind that electrical systems pose hazards due to high voltages, high short-circuit
currents, electric arcs and/or other hazards.
1.3.2 Product changes
Modifications to hardware and firmware of the device are not permitted.Incorrect operation
or modifications to the device can endanger your safety or damage the device. Do not repair
the device yourself. If the device is defective, please contact Phoenix Contact.
1.4 Safety notes
– Installation should be carried out as described in the installation notes. Accessing cir-
cuits within the device is prohibited.
– Always disconnect the device from the energy supply before performing any work on it.
Short-circuit the secondary side of each current transformer.
– Use an appropriate voltage measuring device to ensure that no voltage is present.
– Re-install all the equipment, doors, and covers on the device before switching on the
device again.
– Ensure that the control cabinet is grounded in accordance with DIN EN 61439-1.
– Ensure that the control cabinet door in which the device is installed is grounded.
– Provide a switch/circuit breaker close to a device, which is marked as the disconnecting
device for this device.
– Provide overcurrent protection (16 A) for the supply voltage within the installation.
– To protect the device against mechanical or electrical damage, install it in a suitable
housing with an appropriate degree of protection in accordance with IEC 60529.
– If the device is not used as described in the documentation, the provided protection
may be impaired.
– The housing of the device is equipped with basic insulation against neighboring devic-
es up to 300 V OVC III (overvoltage category). Please note that a minimum clearance
of 6 mm to neighboring elements must be maintained to achieve double insulation.
– The device is maintenance-free. Repairs may only be carried out by the manufacturer.
– The device must be stopped if it is damaged, was subjected to an impermissible load,
stored incorrectly or if it malfunctions.
– Check that the measuring device is working correctly by measuring a known voltage
and a known current.
– Ground each current transformer on the secondary side.
WARNING: Risk of death due to electric shock
Only use external current transformers with reinforced or double isolation. Install current
transformers and corresponding measuring devices only when the power supply of the
system is disconnected.