SECO-LARM USA ST-2406-5AQ, ST-1206-1.5AQ, ST-2406-3AQ, ST-2406-7AQ, ST User Manual

Installation Manual

®

ENF ORCER

ST-series

Power Supplies/Chargers

Features:

• Automatic recharging of back-up batteries.

• Several models to choose from.

• Programmable DC voltage output.

• Built-in battery short-circuit protection.

• Fused output for a regulated charge.

• Automatic switch-over to the backup battery if main power is lost or cut.

• LEDs indicate power status.

• Includes foam tape and battery leads for easy installation.

• Regulated and filtered output voltage.

What it is:

SECO-LARM’s ST-series of power supplies/chargers ensure that alarm systems and access control systems always have
enough power to do their job. Protected by fused output, input polarity protection diodes, and back-up battery polarity
reverse protection, these power supplies/chargers can be used to maximize the security and efficiency of nearly any alarm
or access control installation.

ST-2406-2AQ shown

Model # DC Voltage Current (continuous) Current (peak) Current Output (maximum charge) PCB Size

ST-1206-1.5AQ
ST-2406-2AQ

ST -2406-3AQ

ST-2406-5AQ

ST -2406-7AQ

ST-2406-10AQ

Fused Output:

The ST-1206-1.5AQ comes with a 3A fuse. The ST-2406-2AQ, ST-2406-3AQ, and ST-2406-5AQ models come with a 5A
fuse. The ST-2406-7AQ and ST-2406-10AQ come with a 10A fuse. Use only the correct fuses to prevent short circuits
and damage to the power supplies/chargers or the alarm access control panel.

WARNING:

Connect these power supplies/chargers only to a rechargeable back-up battery. Use of a non-rechargeable back-up
battery could result in damage to the power supplies/chargers or the alarm access control panel, as well as leakage or
explosion of the battery.

Installation:

1. Mount the PC board in the desired location or enclosure. It must be easily accessible for future servicing.

2. DC Power Output Setting:

6, 12 1.5A 2.0A 6 V = 200mA, 12 V = 400mA 27/8” x 21/4” x 1” (73 x 57 x 25 mm)
6, 12, 24 1.5A 2.0A 6 V = 180mA, 12 V = 350mA, 24 V = 700mA 27/8” x 21/2” x 13/8” (73 x 64 x 35 mm)
6, 12, 24 2.5A 3.0A 6 V = 180mA, 12 V = 350mA, 24 V = 700mA 33/8” x 27/8” x 15/16” (81 x 73 x 33 mm)
6, 12, 24 4.0A 5.0A 6 V = 180mA, 12 V = 350mA, 24 V = 700mA 33/4” x 27/8” x 19/16” (95 x 73 x 40 mm)
6, 12, 24 7.0A 7.5A 6 V = 180mA, 12 V = 350mA, 24 V = 700mA 51/2”
6, 12, 24 9.0A 10.0A 6 V = 180mA, 12 V = 350mA, 24 V = 700mA 51/2”

a. To program ST-1206-1.5AQ DC voltage output:

1. 6VDC — Cut the wire loop, and connect to a 12VAC/20VA transformer.
INSULATE THE CUT WIRE LEADS so that they do not come in contact with the power supplies/chargers.

2. 12VDC — Leave the wire loop uncut, and connect to a 16VAC/40VA transformer.

b. To program ST-2406 Series DC voltage output:

1. Set the desired DC output voltage ( 6, 12, or 24 VDC ) of the power supply using the DIP switch.

See Table 2.

2. The default voltage output setting is 12 VDC.

x 51/8” x 211/64” (140 x 130 x 55 mm)
x 51/8” x 211/64” (140 x 130 x 55 mm)

Note: Products with model number that ends with "Q"or have a green “Q” sticker represents RoHS compliant products.

Figure 1 – ST-1206-1.5AQ wiring diagram

(black)

(red)

3 4

2

AC DC O/P I/P 1

Red Led

indicator

To Class-II
transformer
VAC outputs

To alarm or access control
panel VDC positive (+) input

To alarm or access control
panel VDC negative (-) input

To back-up battery negative (-) input
To back-up battery positive (+) input

Wire loop

To Class-II
transformer
VAC outputs

To alarm or access
control panel VDC
positive (+) input

Figure 2 – ST-2406 Series wiring diagram

Red DC Output LED Green AC Input LED

+ - + -

AC

DC BAT

To back-up battery positive (+) input
To back-up battery negative (-) input

To alarm or access control
panel VDC negative (-) input

3. Connect the wirings to their respective terminals (see Figure 1 and 2).

NOTE: a. Before connecting any external devices, temporarily power up the unit and measure the DC output voltage

to avoid damage to devices. Then disconnect power before connecting external devices.

b. LED status — for ST-1206-1.5AQ, Red LED on indicates connections to AC power.

for ST-2406 series, see Table 3.

WARNING:1. Using a higher AC input than recommended may damage the unit.

2. When a power supply/charger is used at its maximum load for an extended
period of time, the heatsink portion of the power supply/charger will be very hot.

3. DO NOT USE METAL SPACERS TO MOUNT THE POWER SUPPLY’S PC BOARD.

4. Measure DC output before connecting devices.

Table 1:
Transformer selection table:

Output voltage

6VDC

12VDC

24VDC

ST-1206-1.5AQ

12VAC/20VA

16VAC/40VA

N/A

ST-2406-2AQ

12VAC/20VA

16VAC/40VA

ST-UV24-W50Q

24VAC/50VA

Table 2:
To program DC voltage output:

Voltage

6V ON
12V
24V

SW1

OFF

OFF

SW2

OFF
OFF

ON

* For ST-1206-1.5AQ model. See point 2 under Installation.

ST-2406-3AQ

ST-UV24-W50Q

24VAC/50VA

ST-UVDA-W100Q

24-28VAC/100VA

ST-UVDA-W100Q

24-28VAC/100VA

ST-2406-5AQ

ST-UV16-W100Q ST-UVDA-W180Q

16VAC/100VA

ST-UV16-W100Q

16VAC/100VA

ST-UVDA-W180Q

24-28VAC/180VA

Table 3:
LED status for ST-2406 series:

Green LED Red LED Status

ON ON Normal
OFF ON No VAC input
ON OFF No VDC output
OFF OFF No VAC input and VDC output

ST-2406-7AQ ST-2406-10AQ

24-28VAC/180VA

ST-UVDA-W180Q

24-28VAC/180VA

24-28VAC/210VA

ST-UVDA-W180Q

24-28VAC/180VA

ST-UVDA-W180Q

24-28VAC/180VA

ST-UV28-T350Q

28VAC/350VA

NOTICE: The information and specifications printed in this manual are current at the time of publication. However, the SECO-LARM policy is one of continual development and

improvement. For this reason, SECO-LARM reserves the right to change specifications without notice. SECO-LARM is also not responsible for misprints or typographical errors.
Copyright © 2008 SECO-LARM U.S.A., Inc. All rights reserved. This material may not be reproduced or copied, in whole or in part, without the written permission of SECO-LARM.

WARRANTY: This SECO-LARM product is warranted against defects in material and workmanship while used in normal service for a period of one (1) year from the date of sale to

the original consumer customer. SECO-LARM’s obligation is limited to the repair or replacement of any defective part if the unit is returned, transportation prepaid, to SECO-LARM.
This Warranty is void if damage is caused by or attributed to acts of God, physical or electrical misuse or abuse, neglect, repair, or alteration, improper or abnormal usage, or faulty
installation, or if for any other reason SECO-LARM determines that such equipment is not operating properly as a result of causes other than defects in material and workmanship.
The sole obligation of SECO-LARM, and the purchaser’s exclusive remedy, shall be limited to replacement or repair only, at SECO-LARM’s option. In no event shall SECO-LARM be liable
for any special, collateral, incidental, or consequential personal or property damages of any kind to the purchaser or anyone else.

SECO-LARMSECO-LARM

SECO-LARM

SECO-LARMSECO-LARM

®

U.S.A., Inc., U.S.A., Inc.,

U.S.A., Inc., 16842 Millikan Avenue, Irvine, CA 92606

U.S.A., Inc., U.S.A., Inc.,

Tel: [phone] Fax: [phone]

Website: www.seco-larm.com

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E-mail: sales

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