AC Input Connection¶
Warning
Disconnect AC power from the mains and measure the AC input terminals to ground to ensure 0 Vac is present before attempting any installation procedure.
AC power is wired to the SL Series MagnaDC power supply by attaching three cables plus ground for 3-phase installations or two cables plus ground for 1-phase installations. The SL Series MagnaDC power supply is phase orientation insensitive, allowing the phases to be connected in any order; the ground connection, however, must be connected to ground stud labeled with a ground symbol.
Magna-Power recommends cables per the recommendations of the National Electrical Code or Suggested Ampacities of 4-Conductor Type S or SO Cable, with one end stripped of 0.5 in (12.7 mm) of insulation and securely fastened to the 38660 Molex input connector at the rear of the power supply. For additional connection security, crimp the end of AC wire with a fork terminal with an outer end-to-end fork width of no more than 0.4 in (10.2 mm).
Note
The cable recommendations provided are for reference purposes only. Always consult local electrical code requirements to ensure compliance.
After connections are made, the provided protective covers for the AC input and DC output can optionally be installed and securely fastened to the chassis using three screws per cover. This programmable DC power supply is designed to be permanently connected to the power source requiring a readily accessible disconnect device incorporated into the fixed wiring.
Wire Size |
60 °C Types |
75 °C Types |
85 °C Types |
90 °C Types |
|---|---|---|---|---|
RUW, T, TW |
FEPW, RH, RH, RUH, THW, THWN, XHHW, ZW |
V, MI |
TA, TBS, SA, AVB, SIS, FEP, FEPB, RHH, THHN, XHHW |
|
14 AWG |
25 Aac |
30 Aac |
30 Aac |
35 Aac |
12 AWG |
30 Aac |
35 Aac |
40 Aac |
40 Aac |
10 AWG |
40 Aac |
50 Aac |
55 Aac |
55 Aac |
8 AWG |
60 Aac |
70 Aac |
75 Aac |
80 Aac |
6 AWG |
80 Aac |
95 Aac |
100 Aac |
105 Aac |
4 AWG |
105 Aac |
125 Aac |
135 Aac |
140 Aac |
3 AWG |
120 Aac |
145 Aac |
160 Aac |
165 Aac |
2 AWG |
140 Aac |
170 Aac |
185 Aac |
190 Aac |
1 AWG |
165 Aac |
195 Aac |
215 Aac |
220 Aac |
10 AWG |
195 Aac |
230 Aac |
250 Aac |
260 Aac |
20 AWG |
225 Aac |
265 Aac |
290 Aac |
300 Aac |
30 AWG |
260 Aac |
310 Aac |
335 Aac |
350 Aac |
40 AWG |
300 Aac |
360 Aac |
390 Aac |
405 Aac |
250 MCM |
340 Aac |
405 Aac |
440 Aac |
455 Aac |
300 MCM |
375 Aac |
445 Aac |
485 Aac |
505 Aac |
350 MCM |
420 Aac |
505 Aac |
550 Aac |
570 Aac |
Wire Size |
Maximum Current |
|---|---|
18 AWG |
7 Aac |
16 AWG |
10 Aac |
14 AWG |
15 Aac |
12 AWG |
20 Aac |
10 AWG |
25 Aac |
8 AWG |
35 Aac |
6 AWG |
45 Aac |
4 AWG |
60 Aac |
2 AWG |
80 Aac |
Fuse Rating¶
MagnaDC power supplies contain a variety of power and control fuses. For MagnaDC power supply products with a 1-phase input, there are two (2) power fuses and two (2) control fuses. For MagnaDC power supply products with a 3-phase input, there are three (3) power fuses per module and two (2) control fuses per module. The SL Series fuse table provides the fuses ratings and recommended replacements. Magna-Power recommends using a time-delay fuse.
In the event of a fuse fault, power must be removed from the supply and the fuse must be replaced to correct this condition. A cleared power fuse usually indicates a power stage failure, often requiring factory attention. In addition, a cleared fuse can be caused by power surges from lightning storms or other AC transient events.
Warning
To avoid personal injury or damage to the SL Series MagnaDC power supply, use only the specified replacement fuses.
Power Level |
AC Input Voltage |
Power Fuse Rating |
Recommended
Power Fuse(s)
|
Control Fuse Rating |
Recommended
Control Fuse
|
|---|---|---|---|---|---|
1.5 kW |
85-265 Vac (UI) 1-Phase |
Qty (2) at 25 Aac ea. |
FNQ25 |
Qty (2) at 1 Aac ea. |
FNQ1 |
1.5 kW |
208/240 Vac 3-Phase |
Qty (3) at 8 Aac ea. |
FNQ8 |
Qty (2) at 1 Aac ea. |
FNQ1 |
1.5 kW |
380/415 Vac 3-Phase |
Qty (3) at 5 Aac ea. |
FNQ5 |
Qty (2) at 1 Aac ea. |
FNQ1 |
1.5 kW |
440/480 Vac 3-Phase |
Qty (3) at 5 Aac ea. |
FNQ5 |
Qty (2) at 1 Aac ea. |
FNQ1 |
2.6 kW |
187-265 Vac 1-Phase |
Qty (2) at 25 Aac ea. |
FNQ25 |
Qty (2) at 1 Aac ea. |
FNQ1 |
2.6 kW |
208/240 Vac 3-Phase |
Qty (3) at 15 Aac ea. |
FNQ15 |
Qty (2) at 1 Aac ea. |
FNQ1 |
2.6 kW |
380/415 Vac 3-Phase |
Qty (3) at 8 Aac ea. |
FNQ8 |
Qty (2) at 1 Aac ea. |
FNQ1 |
2.6 kW |
440/480 Vac 3-Phase |
Qty (3) at 8 Aac ea. |
FNQ8 |
Qty (2) at 1 Aac ea. |
FNQ1 |
4 kW |
208/240 Vac 3-Phase |
Qty (3) at 20 Aac ea. |
FNQ20 |
Qty (2) at 1 Aac ea. |
FNQ1 |
4 kW |
380/415 Vac 3-Phase |
Qty (3) at 10 Aac ea. |
FNQ10 |
Qty (2) at 1 Aac ea. |
FNQ1 |
4 kW |
440/480 Vac 3-Phase |
Qty (3) at 10 Aac ea. |
FNQ10 |
Qty (2) at 1 Aac ea. |
FNQ1 |
6 kW |
208/240 Vac 3-Phase |
Qty (3) at 25 Aac ea. |
FNQ25 |
Qty (2) at 1 Aac ea. |
FNQ1 |
6 kW |
380/415 Vac 3-Phase |
Qty (3) at 15 Aac ea. |
FNQ15 |
Qty (2) at 1 Aac ea. |
FNQ1 |
6 kW |
440/480 Vac 3-Phase |
Qty (3) at 15 Aac ea. |
FNQ15 |
Qty (2) at 1 Aac ea. |
FNQ1 |
8 kW |
208/240 Vac 3-Phase |
Qty (3) at 35 Aac ea. |
FNQ35 |
Qty (2) at 1 Aac ea. |
FNQ1 |
8 kW |
380/415 Vac 3-Phase |
Qty (3) at 20 Aac ea. |
FNQ20 |
Qty (2) at 1 Aac ea. |
FNQ1 |
8 kW |
440/480 Vac 3-Phase |
Qty (3) at 20 Aac ea. |
FNQ20 |
Qty (2) at 1 Aac ea. |
FNQ1 |
10 kW |
208/240 Vac 3-Phase |
Qty (3) at 40 Aac ea. |
FNQ40 |
Qty (2) at 1 Aac ea. |
FNQ1 |
10 kW |
380/415 Vac 3-Phase |
Qty (3) at 25 Aac ea. |
FNQ25 |
Qty (2) at 1 Aac ea. |
FNQ1 |
10 kW |
440/480 Vac 3-Phase |
Qty (3) at 20 Aac ea. |
FNQ20 |
Qty (2) at 1 Aac ea. |
FNQ1 |