User manual

Page 26
EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
[e-mail]
PS 3000 C Series
Standing surface (handle in -45° position)
2.3.4 Connection to DC loads
• When using the model which is rated for 40 A, attention has to be paid to where the load
is connected on the DC output terminals. The front 4mm banana plug hole is only rated for
max. 32 A!
• Connection of loads which are also voltage sources and can probably generate voltages
higher than 110% nominal of the device model is not allowed!
• Connection of voltage sources with reversed polarity is not allowed!
The DC output is located on the front of the device and is not protected by a fuse. The
cross section of the connection cable is determined by the current consumption, cable
length and ambient temperature.
For cables up to 5 m and average ambient temperature up to 50°C, we recommend:
up to 10 A: 0.75 mm² (AWG18) up to 25 A: 4 mm² (AWG10)
up to 60 A: 16 mm² (AWG4)
per lead (multi-conductor, insulated, openly suspended). Single cables of, for example,
16 mm² may be replaced by e.g. 2x 6 mm² etc. If the cables are long then the cross sec-
tion must be increased to avoid voltage loss and overheating.
2.3.4.1 Possible connections on the DC output
The DC output on the front is of type clamp & plug and can be used with:
• 4 mm system plugs (Büschel, banana, safety) for max. 32 A
• Spade lugs (6 mm or bigger)
• Soldered cable ends (only recommended for small currents up to 10 A)
When using any type of lugs or cable end sleeves, only use those with insulation to
ensure electric shock protection!
2.3.5 Grounding of the DC output
The device can be grounded on of one the DC poles, i.e. can be directly connected to PE.
• If grounding one of the output poles ensure that no pole of the load (e.g. motor) is grounded.
This could lead to a short-circuit!