CCR961 MANUAL-GB
5
Version B2:01-07-2015
2.3
CCR 961 variants
a.
Input voltage
CCR 961 can be supplied for almost all values of input voltages. However, our standards are
230VAC and 400VAC, 50Hz. The 400VAC version are preferred due to higher efficiency, and
will be supplied if no specific requirement are stated.
The CCR modules can be supplied in three different max. current ratings, 40A - 60A and 110A.
All three types can be set up for 230VAC use or 400VAC, simply by changing a terminal
connection in the modules.
The 40A and 60A module are mechanical identical, which means that the 60A module can be
used as spare for the 40A type. The 110A module is 2 times wider as the other modules.
b.
Firmware
The CCR modules with the last Firmware (program), SW4.0xx covers:
ISO measuring version 1 (standard offered type):
ISO measuring in intervals (0-2,5K
Ω
, …, 1-2M
Ω
, > 2M
Ω
)
ISO measuring version 2 (requires special measuring box):
Measuring of ISO value from 5K
Ω
to >50M
Ω
, with high accuracy and two significant
digits.
Series circuit current nominal 6,6A (current measuring transformer 6,6/0,25A)
Series circuit current nominal 2,2A (current measuring transformer 2,2/0,25A)
Series circuit current nominal 13,2A (current measuring transformer 13,2/0,25A)
All SW version can be supplied for a number of different languages. The Danish and English
language are always included, but the third language can be selected:
Last
digit 1 2 3 4 5 6 7
Language
(Country code)
D F N S P I
c.
ISO measuring
As mentioned under Firmware, the CCR can be with the standard ISO measuring in intervals or
the more expensive explicit measurement where the isolation value can be displayed from zero to
more than 50M
Ω
with two significant digits, fx. 37M
Ω
. Besides the different setting in the SW,
the explicit measurement system requires a more complicated Earth Measuring Box.
d.
Cut-out device.
As standard, the CCR961 regulators are with Cut-out device based on FAA plugs as shown on
drawing XXX: This Cut-out devise is placed behind the front door. The construction is simple and
reliable, and gives easy access to measurements on the circuit while disconnected from the CCR.
Alternatively, the CCR can be supplied with a key operated Cut-off device, which can be operated
without opening the front door on the CCR cubicle. This solution is specially designed in cases
where the CCR must be operated and maintained by people without any technical education.
Both solutions are described in section 7.
