Elk 4 Amp Three Output 12 Volt DC Power Supply With Battery Backup

The ELK-P412-K is a very high quality general purpose high current power supply and battery charger with a 1280 back up battey. It is ideal for alarm, access control, and CCTV applications requiring up to 4 Amps. The ELK-P412-K distributes 12VDC power to three (3) sets of DC power terminals, each having a voltage present indicator LED and automatic resetting overload protection. It also features a master On/Off switch and built-in low battery cut-off to protect the backup battery from deep discharging if AC power is off for an extended time. A 12 Volt, 8 Ah rechargeable backup battery is included with the system. This battery is always being charged in the panel. Most other power supplies at this price don't include the back up battery.

Features:

Switching Power Supply, no transformer needed.

Auto Reset “fuseless” Overload Protection (PTC).

Three (3) Individual PTC Protected Power Outputs.

Master Power On/Off Switch.

Built-in Low Battery Cutoff Circuit.

Visual Power Indicators.

AC and DC Surge Suppression.

Includes Six foot AC Power Cord.

Lifetime Limited Warranty.


Specifications:

Regulated Output Voltage: 13.8 Volts D.C.

Continuous Current Rating: 4 Amps.

AC Input Voltage Range: 85~264 VAC @ 47-63Hz.

Low Battery Cutoff: ~/= 10 Volts.

Ripple and Noise: 100mV p-p.
• Dimensions: 7.5”W x 12.5”H x 3.75”D.


More info on the back up battery:

Nominal Voltage: 12 Volts

Rated Capacity: 8 AH (20 hour rate)

Length: 5.94" (151mm)

Width: 2.56" (65mm)

Height: 3.74 (95mm)

Total Height: 3.98" (101mm)

Terminals: F1-Faston Tab No. 187

Capacity 77˚F(25˚C) 20 hour rate (0.375A) 10 hour rate (0.71A) 5 hour rate (1.27A) 1 hour rate (4.5A) 8AH 7.1AH 6.37AH 4.5AH Capacity affected by Temperature (20 hour rate) 104˚F (40˚C) 77˚F (25˚C) 32˚F (0˚C) 5˚F (-15˚C) 102% 100% 85% 65%

Charge Constant Voltage Cycle: Initial Charging Current less than 2.25A Voltage 14.4V - 15.0V at 77˚F(25˚C) Standby: Voltage 13.5V - 13.8V at 77˚F(25˚C