3D Systems, Inc.
29
p/n: 15-D99, rev. C
Frame ground
Main power
panel
Power sub-
panels
DMP Factory
350 blower and
vacuum pump
Chiller
Wet separator
vacuum cleaner
6.1.2 Room Air Exhaust
The facility must have a separate system for exhausting the air from the room. The system must exhaust the room air directly
to the outside. For the exhaust system, 3D Systems recommends the use of TEFC (Totally Enclosed Fan-Cooled) motors for this
application.
Fine metal particle accumulation should be avoided. Particle accumulation can lead to auto-ignition fire. Particular attention
must be made in order to avoid powder accumulation in the ventilation system.
WARNING: FAILURE TO EXHAUST THE ROOM AIR DIRECTLY TO THE OUTSIDE WILL PUT PERSONNEL AT RISK
FOR BREATHING AIR CONTAMINATED WITH METAL PARTICLES AND WILL PUT THE FACILITY AT RISK FOR AUTO-
IGNITING FIRES.
WARNING: IF YOU ARE USING REACTIVE METALS, (TITANIUM OR ALUMINUM) AIR EXTRACTION EQUIPMENT
SHOULD NOT CONTAIN FILTERS. FINE METAL PARTICLES WILL BE COLLECTED BY THE FILTER AND WILL BE A
SOURCE OF AUTO-IGNITING FIRES.
6.2 Electrical Requirements
6.2.1 Factory Connection
This task must be performed by a qualified electrician. The DMP Flex 350 production printer is designed to be run from 400
VAC 3-phase, 50/60 Hz, 9 kVA power. The facility’s power circuit must have a 50A branch protective circuit breaker or fused
disconnect with lockout/tagout capabilities. Use a 30 amp breaker for the 400 VAC supply.
It is the customers responsibility to ensure that the facility and equipment within are protected against lightning strikes
according to local regulations.
6.2.2 Customer Grounding Requirements
It is the customer’s responsibility to make sure all connections between powered equipment and the power panel are grounded
as in the diagram below.
All equipment must be grounded to prevent accumulation of static electricity.
