Siemens PAD-3 User Manual

3
1.3 GENERAL SPECIFICATIONS
Operating specifications for the PAD-3 are as follows:
Environmental
• Operating temperature
32 - 120°F (0 - 49°C)
• Relative humidity
Up to 93%RH @ 90°F (32°C) non-condensing
• Installation Environment
Indoor, dry
Primary Supply
• Primary Input Voltage: 120 VAC (50/60 Hz) nominal
• Maximum primary input current: 2.5A
Secondary and Trouble Power Supply
• 24 volt lead-acid battery set
• Maximum Charge Voltage: 27.8 VDC
• Maximum Charge Current: 3.3A
• Maximum Input Current: 6.1A
• Battery capacity: 7 to 15 A.H. (See Section 6.2, Battery Size Calculation, when using
batteries over 7 A.H.)
Input Circuits
• Two Input circuits
• Connected to power limited source
• Supervised
• Voltage Range: 16-33 VDC/VFW
• Maximum Input Current: 7.0mA
Notification Appliance Circuits
• Operating Voltage Range: Special Application 16-32 VDC
Refer to Siemens Compatible Notification Appliances (P/N 315-096363) for maximum
number per NAC
• Synchronized appliances permitted
• Maximum Alarm Current: 3.0A per circuit (6.0A total for NACs and auxiliary power)
• Four Class B, Style Y circuits or two Class A, Style Z circuits
• Power limited
• Supervised
• Maximum Standby Current: 1.0mA
• Maximum Ripple: 100mVAC
• Maximum Line Resistance: 0.9 ohms @ 3.0 amps, 1.08 ohms @ 2.5 amps, 1.35 ohms @ 2.0
amps, or 1.8 ohms @ 1.5 amps
• Ground fault impedance: 2K ohms (+), 8K ohms (-)

Siemens PAD-3 Specifications

General

Brand	Siemens
Model	PAD-3
Category	Extender
Language	English