TC2 204060 Series BattChg Owners Guide.book Page 14 Friday, July 8, 2011 11:44 AM
Preparing For Installation
current and be rated to withstand the short circuit current available from the | AC Wiring | ||||
connected battery bank. Do not substitute devices rated only for AC |
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voltage; they may not operate properly. |
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The current rating of the DC fuses must be correctly matched to the size of |
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the DC wiring used, in accordance with the applicable codes. This helps to |
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FIRE HAZARD | |||||
protect the installation against fire in case of any overcurrent or short circuit | |||||
Use only on circuits provided with 20A maximum branch circuit | |||||
fault. |
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| protection in accordance with National Electrical Code, NFPA 70. | ||
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Table 3 Fuse Sizes versus Wire Sizes Based on ABYC Regulations | Failure to follow these instructions will result in death or serious | ||||
AWG |
| Max. Fuse/Breaker | injury. | ||
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14 |
| 15 A |
| The AC wiring must be of sufficient size, and it must be protected by the | |
12 |
| 20 A |
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10 |
| 30 A |
| appropriate size and type of input breaker, based on the jurisdiction and | |
8 |
| 50 A |
| application. Some basic examples are given below. | |
6 |
| 80 A |
| The AC input wiring for the Truecharge2 Battery Charger should be three- | |
4 |
| 100 A |
| conductor cable, providing a line, neutral, and ground conductor (or L, N, | |
2 |
| 125 A |
| GND) in an outer jacket, rated a minimum of 75C, and sized based on the | |
1 |
| 150 A |
| AC input current to the charger (see “AC Input Specifications” on page 54) | |
DC Chassis Ground | and on the value of overcurrent protection provided. | ||||
For example: | |||||
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The DC chassis ground (earth) wire should also be sized correctly to provide proper protection. Refer to the local electrical codes for your specific installation to determine the correct gauge. The ABYC standards require this DC chassis ground wire to be the same size as the largest DC + and – conductors connected to the charger, or no more than one wire size smaller. See “Step 2: Connecting the DC Chassis Ground (Earth)” on page 17 for instructions.
•in US NEC, you may use a 14 AWG wire with a 15 A breaker for up to 12 A continuous current (or 12 AWG for a 20 A breaker for up to 16 A continuous current) or
•for 230 Vac application, you may be able to use either a 2.5mm2 wire with a 16 A breaker or use 1.5 mm2 wire with a 10 A breaker.
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| Truecharge2 Series Battery Charger Owner’s Guide |
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