User Manual

Siemens Industry, Inc.

Building Technologies Division

P/N 315-099321-710

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These battery models are UL listed for use with the system:

• BP-61—24V, 15 AH

• BTX-1—a set of 12V, 31 AH

• BTX-2—a set of 12V, 75 AH

• BTX-3—a set of 12V, 100AH

Select the battery that meets or exceeds the final calculated battery amp hour rating.

Use an external battery box, Model CAB-BATT from Siemens Industry, Inc. (P/N 500-

633917) with the BTX-2 and BTX-3 models.

Battery System Electrical Rating:

Input Voltage: 24VDC +10%, -15%

Input Current: 15A max.

Minimum Battery size: 15AH

Maximum Battery size : 100AH

Battery Max Charge Current: 5A (full charge mode)

SPARE EQUIPMENT A minimum of one spare PSC-12 per NCCNT WAN system is recommended.

ELECTRICAL RATINGS