Table of Contents
Advertisement
External Input Protection
Parallel Use to Increase
Output Power
20
Maximal Wire Length for a Fast Magnetic Tripping [m (ft)]
Wire Length by Gauge
MCB
0.75 mm² (18 AWG)
C-2A
74 (242.8)
C-3A
57 (187.0)
C-4A
43 (141.1)
C-6A
11 (36.1)
C-8A
1 (3.3)
B-6A
19 (62.3)
B-10A
9 (29.5)
B-13A
7 (23.0)
(1) Consider twice the distance to the load or cable length when calculating the total wire length
(+ and – wire).
The unit is tested and approved for branch circuits up to 30 A (US) and 32 A
(IEC). An external protection is required only if the supplying branch has an
ampacity greater than the approved circuit amperage, provided, that the
negative pole is grounded. If the positive pole is grounded, an additional
external fast-acting input fuse in the negative input is required (for example,
an 8 A KLKD fuse from Littelfuse or a comparable UL Listed fuse with the same
ratings and characteristics). Otherwise the UL approvals become void.
Check local codes and local requirements. In some countries, local regulations
might apply.
If an external fuse is used, minimum requirements must be considered to
avoid nuisance tripping of the circuit breaker. A minimum value of 10 A B- or
C-characteristic breaker must be used.
1606-XLE480FP-D DC/DC converters can be paralleled to increase the output
power. The output voltage must be adjusted to the same value (±100 mV) in
Single Use mode with the same load conditions on all units, or the units can be
left with the factory settings. After the adjustments, move the jumper on the
front of the unit from Single Use to Parallel Use to achieve load sharing. The
Parallel Use mode regulates the output voltage so that the voltage at no load is
approximately 4% higher than at nominal load. See
jumper is plugged in, the unit is in Single Use mode. The factory setting is also
Single Use mode.
Figure 33 - Parallel Use to Increase Output Power
Unit A
AC
DC
Unit B
AC
DC
If more than three units are connected in parallel, a fuse or circuit breaker with
a rating of 15 A or 16 A is required on each output. Alternatively, use a diode or
redundancy module.
Rockwell Automation Publication 1606-RM047A-EN-P - September 2021
1.0 mm² (17 AWG)
1.5 mm² (16 AWG)
98 (321.5)
134 (439.6)
74 (242.8)
106 (347.8)
56 (183.7)
73 (239.5)
16 (52.5)
23 (75.5)
1 (3.3)
2 (6.6)
36 (118.1)
51 (167.3)
12 (39.4)
18 (59.1)
10 (32.8)
16 (52.5)
+
-
+
Load
+
-
-
(1)
2.5 mm² (14 AWG)
198 (649.6)
168 (551.2)
114 (374.0)
33 (108.3)
3 (9.8)
82 (269.0)
27 (88.6)
24 (78.7)
Output on page
6. If no
Advertisement
Table of Contents
