SMP7CTX220 Series Power Supply/Chargers

Overview

Altronix SMP7CTX220 Series power supply/chargers convert a 220VAC (working range 198VAC - 256VAC), 50/60Hz into a regulated 12VDC or 24VDC output with up to 6A of continuous load current.

SMP7CTX220 Series Power Supply Configuration Reference Chart

Note: The chart also indicates 220/50/60Hz Input Current (1.5A) and Total Output Current (6A).

Specifications

Input:

• Input 220VAC, 50/60Hz, 1.5A.

Output:

• 12VDC or 24VDC selectable output.
• 6A supply current.
• Filtered and electronically regulated outputs.
• Short circuit and thermal overload protection.

Battery Backup:

• Built-in charger for sealed lead acid or gel type batteries.
• Maximum charge current 0.7A.
• Zero voltage drop when switching over to battery backup.

Features:

• Power ON/OFF switch.

Supervision (select models):

• AC fail supervision ([form C contacts]).
• Battery presence and low battery supervision ([form C contacts]).

Visual Indicators:

• AC input and DC output LED indicators.

Electrical:

• Operating temperature: 0°C to 49°C ambient.

Mechanical:

Enclosure Dimensions (H x W x D approx.):

• BC300 Enclosure (for SMP7CTX220, SMP7PMCTX220, SMP7PMP4220, SMP7PMP4CB220, SMP7PMP8220, SMP7PMP8CB220, SMP7PMP16220, SMP7PMP16CB220): 13.5" x 13" x 3.25" (342.9mm x 330.2mm x 82.6mm). Accommodates up to two (2) 12VDC/7AH batteries.
• BC400 Enclosure (for SMP7PMCTXX220): 15.5" x 12" x 4.5" (393.7mm x 304.8mm x 114.3mm). Accommodates up to two (2) 12VDC/12AH batteries.

Note: The BC400 enclosure accommodating two (2) 12VDC/12AH batteries is also available for other models upon request (contact Altronix).

Power Supply Voltage Output Specifications

*Specified at 25°C ambient.

Switch Indicator: OFF - 24V, ON - 12V

Installation Instructions

Wiring methods shall be in accordance with the National Electrical Code/NFPA 70/NFPA 72/ANSI, and with all local codes and authorities having jurisdiction. Product is intended for indoor use only.

1. Mount unit in the desired location. Mark and predrill holes in the wall to line up with the top two keyholes in the enclosure. Install two upper fasteners and screws in the wall with the screw heads protruding. Place the enclosure's upper keyholes over the two upper screws; level and secure. Mark the position of the lower two holes. Remove the enclosure. Drill the lower holes and install the three fasteners. Place the enclosure's upper keyholes over the two upper screws. Install the two lower screws and make sure to tighten all screws (refer to Enclosure Dimensions, pgs. 7, 8). Secure enclosure to earth ground.
2. Slide [Power ON/OFF] switch to OFF position.
3. Set SW1 on the power supply board to the desired DC output voltage (refer to Power Supply Voltage Output Specification Chart).
4. Connect AC power to the terminals marked [L & N], connect ground to earth (safety) ground (See Fig. 1, pg. 5). Use 18 AWG or larger for all power connections (Battery, DC output). Use 22 AWG to 18 AWG for power-limited circuits (AC Fail/Low Battery reporting).
5. Slide [Power ON/OFF] switch to ON position.
6. Measure output voltage before connecting devices. This helps avoiding potential damage. Keep power-limited wiring separate from non power-limited wiring (220VAC, 50/60Hz Input, Battery Wires). Minimum 0.25" spacing must be provided.
7. CAUTION: Do not touch exposed metal parts. Shut branch circuit power before installing or servicing equipment. There are no user serviceable parts inside. Refer installation and servicing to qualified service personnel.
8. Slide [Power ON/OFF] switch to OFF position.
9. Connect devices to be powered:
   • For Power Supply Board connect to the terminals marked [– DC +].
   • For Power Distribution Module(s) connect devices to the terminal pairs 1 to 4 marked [1P & 1N] through [4P & 4N] (See Fig. 2, pg. 6), 1 to 8 marked [1P & 1N] through [8P & 8N] (See Fig. 3, pg. 6), or 1 to 16 marked [1P & 1N] through [16P & 16N] (See Fig. 4, pg. 6), carefully observing correct polarity.
   Note: The Power ON/OFF switch is used to disconnect the L (HOT) terminal from the rest of the board (See Fig. 1a, pg. 5). When servicing the unit, AC mains should be removed.
10. When using stand-by batteries, they must be lead acid or gel type. Connect battery to the terminals marked [– BAT +] (battery leads included).
    • 12VDC operation: Use one (1) 12VDC battery.
    • 24VDC operation: Use two (2) 12VDC batteries connected in series.
    Note: When batteries are not used, a loss of AC will result in the loss of output voltage.
11. For supervised models only: Connect appropriate signaling notification devices to AC Fail and Low Bat supervisory relay outputs marked [NC, C, NO] (See Fig. 1b, pg. 5).
12. Slide [Power ON/OFF] switch to ON position.

LED Diagnostics

Power Supply Board Status:

Power Distribution Module Status:

Terminal Identification

Power Supply Board:

*Note: Supervised models only

PD4/PD4CB/PD8/PD8CB/PD16W/PD16WCB - Power Distribution Module:

CAUTION: Equipment to be installed / serviced by authorized / trained personnel only. Shut branch circuit power before installing / servicing equipment.

WARNING: To reduce the risk of fire or electric shock, do not expose the unit to rain or moisture. This installation should be made by qualified service personnel and should conform to the National Electrical Code and all local codes.

⚡ [High Voltage Warning]: The lightning flash with arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of an insulated DANGEROUS VOLTAGE within the product's enclosure that may be of sufficient magnitude to constitute an electric shock.

❗ [Important Information]: The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

⚠️ [Caution]: To reduce the risk of electric shock do not open enclosure. There are no user serviceable parts inside. Refer servicing to qualified service personnel.

Diagrams and Schematics

Fig. 1: System Layout

This diagram illustrates the general layout of the Altronix SMP7CTX220 Series power supply system within an enclosure. It shows the placement of the Power Supply Board and Power Distribution Module(s). Key connection points are indicated:

• AC Power Input: Terminals marked [L & N] for 220VAC, and a Ground Lug.
• Power ON/OFF Switch: Labeled "OFF ON", this switch disables the AC mains line voltage input. If stand-by batteries are connected, the DC output remains on when this switch is OFF.
• SW1 (Voltage Selection): Labeled "12VDC - ON / 24VDC - OFF", this switch selects the output voltage.
• Battery Connections: Terminals marked [– BAT +] for connecting stand-by batteries. The diagram shows space for "Optional Rechargeable Stand-by Battery".
• DC Output: Terminals marked [– DC +] on the Power Supply Board, which feed into the Power Distribution Module(s).
• Supervisory Relays: Terminals for AC FAIL and LOW BAT signals, marked [NC, C, NO].

Fig. 1a: Explains that the Power ON/OFF switch disables the AC mains line voltage input, but the DC output remains active if stand-by batteries are connected.

Fig. 1b: Shows the connections for AC FAIL and LOW BAT supervisory relay outputs, labeled [NC, C, NO].

Fig. 1c: Details the SW1 switch for selecting between 12VDC (ON) and 24VDC (OFF) output.

Fig. 2: PD4/PD4CB Power Distribution Module

This diagram shows the layout for the PD4 and PD4CB Power Distribution Modules, designed for up to four outputs. It is indicated as "Used on PTC Models" when applicable.

• Fuses/PTCs: Four output channels (F1, F2, F3, F4) are shown, each protected by either a fuse or an auto-resettable PTC.
• Output Terminals: Labeled "1P, 2P, 3P, 4P" for positive DC power outputs and "1N, 2N, 3N, 4N" for common (negative) DC outputs.
• Input: Connection labeled "INPUT" from the Power Supply Board (Factory Installed).
• LED Indicator: A single LED is shown for module status.
• DC Output to devices: Clearly marked.

Fig. 3: PD8/PD8CB Power Distribution Module

This diagram illustrates the PD8 and PD8CB Power Distribution Modules, supporting up to eight outputs. It is indicated as "Used on PTC Models" when applicable.

• Fuses/PTCs: Eight output channels are shown, each protected by either a fuse or an auto-resettable PTC.
• Output Terminals: Labeled "1 through 8" for positive DC power outputs (marked "P" in some views) and "N" for common (negative) DC outputs.
• Input: Connection labeled "INPUT" from the Power Supply Board (Factory Installed).
• SW1: A switch labeled "SW1" is present on the module itself.
• LED Indicators: Multiple LEDs (D1, LED) are shown for status indication.
• DC Output to devices: Clearly marked.

Fig. 4: PD16W/PD16WCB Power Distribution Module

This diagram depicts the PD16W and PD16WCB Power Distribution Modules, designed for up to sixteen outputs. It is indicated as "Used on PTC Models" when applicable.

• Outputs: Divided into "common outputs" and "protected outputs" (1 through 16).
• Input: Labeled "XFMR Input" with terminals S, P, P, N, N.
• Protection: Indicates a 3.5A 250V rating for continuous protection, advising to replace fuses with the same type and rating.
• SW1: A switch labeled "SW1" is present on the module itself.

Enclosure Dimensions

BC300 Enclosure

Dimensions: 13.5" x 13" x 3.25" (342.9mm x 330.2mm x 82.6mm).

This enclosure accommodates up to two (2) 12VDC/7AH batteries.

Note: An enclosure accommodating up to two (2) 12VDC/12AH batteries is also available upon request (contact Altronix).

Diagram Description: The diagram shows a rectangular enclosure with mounting hole patterns. It provides detailed measurements for the overall dimensions, depth, and placement of mounting holes, including offsets and diameters.

BC400 Enclosure

Dimensions: 15.5" x 12" x 4.5" (393.7mm x 304.8mm x 114.3mm).

This enclosure accommodates up to two (2) 12VDC/12AH batteries.

Diagram Description: The diagram shows a rectangular enclosure with mounting hole patterns. It provides detailed measurements for the overall dimensions, depth, and placement of mounting holes, including offsets and diameters.