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Auxiliary Battery Switches |
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| ABS Series |
| ABS-100 (100 amp) |
| ABS-150 (150 amp) |
| ABS-175 (175 amp) |
| ABS-200 (200 amp) |
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- Charges the auxiliary battery from the chassis alternator
- Isolates the chassis battery from the auxiliary battery loads
- Bidirectional operation allows engine boost start
- 100% solid state design provides high reliability
- Automatic over current fault shut off
- Sealed construction is resistant to shock and vibration
- Compact size and low profile
- Protective terminal insulator boot option
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InPower's ABS Series Auxiliary Battery Switches are bidirectional current switching devices that connect an auxiliary battery to the main chassis battery/alternator. The auxiliary battery is charged from the chassis battery and alternator while the chassis battery is protected from auxiliary battery load discharge. As the ABS is bidirectional, a charging device such as a battery charger connected to the auxiliary battery can also supply charging current to the chassis battery. The ABS accomplishes this through the voltage and current monitoring capabilities of its microprocessor controller. The proper time to transfer power between the chassis battery and the auxiliary battery is based on a proprietary algorithm that utilizes both battery voltage and current measurements. A control terminal is provided that may be connected to a remote Boost Start momentary switch. Activating this switch will force the auxiliary battery switch on, allowing current to flow from the auxiliary battery to the chassis battery to aid engine starting.
ABS Auxiliary Battery Switches are available in 100, 150, 175 and 200 amp models. In order to properly size the ABS, determine how much extra current is available from the chassis electrical system. This is the maximum alternator output current less the minimum chassis load current. The difference is the maximum available auxiliary battery charging current. Select an ABS model with a capacity to handle this current. Note that two fuses must be installed. One in the battery cable to the chassis battery, and one in the battery cable to the auxiliary battery. These fuses must be sized to match the rating of the ABS. For example, the model ABS-150 must use 150 amp fuses.
The ABS products are sealed and packaged in an anodized aluminum case. Four corner mounting hole pads provide the required connection to ground. The control input utilizes a 1/4" Faston blade terminal. Connections for the high current DC cable utilize 3/8"-16 threaded stainless steel studs with brass contact pads for low contact resistance. A rubber terminal boot is available for additional protection from accidental shorting.
Models include:
| ABS-100 |
100 amp |
| ABS-150 |
150 amp |
| ABS-175 |
175 amp |
| ABS-200 |
200 amp |
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