Construction and hardware
characteristics - REC 561
ABB Network Partner AB
1MRK 580 148-XEN
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Version 1.0-00
3.5 Electrical connections There are two types of electrical terminals:
• Current-carrying, which is for conductors that have a cross section
of up to 4 mm
2
.
• Voltage connector, which is for conductors up to 2,5 mm
2
, which are
intended for all voltage signals.
The current-carrying terminals are located on position X11. These termi-
nals are feed-through terminal blocks with flat tabs on the internal side.
The voltage connector terminals are divided into two parts:
• A female part for conductor connections.
• A male part mounted inside the case on a circuit board.
All external connectors located on the back side of the case are marked
with designation labels. The female part of the connector is marked with
the same designation label as the male part.
Apply these rules when connecting:
For more information, refer to:
• Installation and commissioning (1MRK 580 166-XEN)
• Buyer’s Guide Series REx 5xx Mechanical design and mounting
accessories (1MRK 514 003-BEN)
If you insert in a socket..... Then...
One conductor It can be 0,2-2,5 mm
2
Two conductors They can be 0,2-1 mm
2
Two 1,5 mm
2
conductors Use a ferrule
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