SPS-36M4

24 VDC - 6A/3A - 4 Power Limited Outputs – Supervised Power Supply/Charger Module

The SPS-3.3M4 and SPS-6.5M4 are part of our SPS-36 Series Linear performance power supplies. They are clean, efficient, heavy duty, low frequency off line switching power supplies with precision battery charger and power supervision. These supplies are so clean that they can be used anywhere a linear or switching supply is recommended. The filtering and switching systems we use are very similar to what you would find on high quality computers. Even though the SPS-3.3M4 (24V) and the SPS-6.5M4 (12V) are both 100W power supplies utilizing the same printed wiring board, we offer separate 12V and 24V models for optimum performance. The universal input of 85 VAC to 264 VAC allows them to be used anywhere in the world without adjustments to the power input.

The SPS-3.3M4 and SPS-6.5M4 are operational down to 60 VAC to tolerate brownouts very well. The SPS-3.3M4 and SPS-6.5M4 are fully self-contained and isolated from the line and ground to EN1650 world safety standards. The SPS-3.3M4 and SPS-6.5M4 become an uninterruptible power supply when a stand by battery(s) is connected with the provided battery cable. These supplies have a special power limiting circuit that allows the batteries to be float charged across the output without lock up or chirping on and off. The battery(s) is protected with an automatic resetting circuit breaker and diode for over current and accidental reversed battery hookup. Precision float charging means faster recovery time and longer life for the battery(s). There is no switch over or voltage drop when input power fails. Standby battery(s) can be any capacity between 4 and 200 Amp hours.

The SPS-3.3M4 24 VDC is rated for 3A of Continuous current while the SPS-6.5M4 12 VDC is rated for 6A of continuous current. Power Supervision uses 3 relays and electronics to indicate 3 levels of the stand by battery(s). The ACFAIL relay detects a small drop in DC voltage and provides a form C contact set to indicate the AC has failed and the supply is running on Standby Batteries. The LOW Bat relay provides form C contacts to indicate the battery(s) is low. Either of these form C contacts can be used to signal a buzzer and/or other signaling device. A 3rd relay with electronics is used to disconnect the battery from the Power Supply and Load at the end of its service limit, preventing deep discharge that will damage the battery(s). All three relays are normally energized for fail safe operation.

  • SPS-3.3M424 VDC – 3A - 4 Outputs, 3 class II Power Limited – Supervised Power Supply/Charger Module
  • SPS-6.5M412 VDC – 6A - 4 Power Limited Outputs - Supervised Power Supply/Charger Module
  • SPS-3.3M4ESPS-3.3M4 mounted in Enclosure
  • SPS-6.5M4ESPS-6.5M4 mounted in Enclosure

Features

  • Super Clean Linear Performance
  • Universal Input: 85 VAC–264 VAC Tolerates Brownouts
  • Self contained No External Transformer Required
  • Precision Battery Charging and Output Regulation.
  • Multi-Outputs on Board are Class II Power Limited with PTC Circuit Breakers except Output #1 of SPS-6.5M4 is not Class II
  • Indicating LED’s for AC, DC Power, and Each Output
  • AC Fail Alarm Form C ContactsSPS-3.3M4 or SPS-6.5M4 module below
  • Low Battery Alarm Form C Contacts
  • Battery Cut-off Relay Prevents Deep Discharge
  • Battery is Float Charged for Faster Charging with No Switch Over when AC fails.
  • Short Circuit and Thermally Protected
  • Plug-in Battery Cable Assembly is Provided
  • UL and CUL Listed
    UL603 Burglar Alarm Systems
    UL294 Access Control
    UL1481 & NFPA72 Fire Alarm Systems
  • Compliant with EN60950, EN61204-3 & FCC A

Specifications

  • AC Input: 3P Terminal block in high voltage barrier Line, Neutral, and Earth Ground 18-12 gauge
  • AC Input/Hz/Watts .............................. 85-260ac/47-63Hz/150W
  • Universal AC input does not require any selection switching.Earth ground terminal must be connected to earth ground.
  • AC LED Indicator ........................................... LED Green
  • AC Line Fuse Link - Inside unit for catastrophic failure. This fuse is not field replaceable. A blown fuse would be indicated by the AC LED off with AC power applied.
  • DC Outputs: 8P Terminal block 28-14 gauge
  • Nominal Voltage SPS-3.3M4/SPS-6.5M4 ........................... 24/12 VDC
  • Typical Voltage SPS-3.3M4/SPS-6.5M4 ...................... 27.3/13.65 VDC
  • Total continuous DC output total of all outputs 1-4
    SPS-3.3M4/SPS-6.5M4 .............................................. 3A/6A
  • Output #1 SPS-3.3M4/SPS-6.5M4 PTC Circuit Breaker
    continuous rating class II power limited...................... 3.5A/1.93A
  • Note: Output #1 on SPS-6.5M4 is not class II
  • Output #2-#4 SPS-3.3M4/SPS-6.5M4 Circuit Breaker continuous rating power limited class II ............................................. 1.42A/2.4A
  • DC Output Indicators (4 LED’s adjacent to each output #1 - #4)
    ........................................................... LED’s Yellow
  • Main DC Power .................................................. LED Red
  • Typical Output Ripple & Noise SPS-3.3M4/SPS-6.5M4
    Peak to Peak .............................................. 50 mV/25 mV pp
  • Current Overload Protection ......................... Electronic & PTC’s
  • Battery PTC protection SPS-3.3M4/SPS-6.5M4 ........................ 3A/6A
  • Switching Frequency ............................................. 27KHz
  • Supervisory Functions:

    • AC Fail Contacts: 3P Terminal block – annunciates AC fail – “C” contacts
      “NO, O, NC” ................................................. 2A/120 VAC
    • Three position AC fail terminal block is marked “NO, C, NC” are shown in the Normal, energized, AC On condition. Note: AC fail is detected by a slight drop in DC output voltage. Relay trip point is approximately 99% battery capacity.
    • Low battery Contacts: 3P Terminal block 28-14 awg annunciates low battery
      contacts “NO, O, NC” .......................................... 2A/120 VAC
    • Low battery trip point 24/12V ............................ 22.0/11.0 VDC
    • AC fail, Low Battery, and Battery cut-off Relays are normally energized for fail-safe operation.
    • Battery Disconnect trip points 24/12v ......................... 20.0/12.0
    • Battery Cutoff internal relay contacts ............................. 15A
    • Battery Charging: (Header plug marked [–Bat+]) 12” battery cable provided. 24” and 36” long battery cables are available
    • The battery charger is precision set to float charge 12V or 24V sealed, gel, wet, or AGM lead acid batteries. Two 12V batteries are connected in series for 24V. The Amp Hour (AH) capacity must be above 4AH and the practical limit is 200AH. The supplies have been evaluated at UL with a 40 Ah battery.
    • The Amp Hour recharge rate equals:
      DC OutputA Rating – DC loadA + .5
    • See charge/discharge table on instructions.
  • Environmental:

    • Humidity ....................................... 95% RH Non Condensing
    • Ts Storage Temperature .................................. -40oC – 85oC
    • Ot Operating Temperature Range 100% rating:
      • Ot Power module only ................................. -20 – 44oC
      • Ot with E-1485 Enclosure on wall ..................... -20 – 35oC
      • each 5.5% load reduction increases Ot by .................. +1oC
    • Over temp inside (DC Output is reduced by 1/3) .................... 71oC
    • Mechanical Characteristics:
    • SPS-3.3M4/SPS-6.5M4 weight (module only) ....................... 1.5 lbs
    • SPS-3.3M4E/SPS-6.5M4E weight in enclosure ...................... 7.2 lbs
    • Power module only ............................. 6.40H” x 3.95”W x 2.35”D
    • Mounting holes (4 holes) .............................. 5.36”H x 3.54”W
    • “RT” Rain Tight NEMA 3 outdoor ............................. 6”Wx8”Hx4”D
    • “E” Enclosure dimensions .......................... 14W” x 9H” x 3.5”D”
      • mounting holes (4) ............................... 12.74” x 6.98”
      • Note: For knock out and mounting locations, see graphic drawing of
        SPS-6.5M4E on Installation Instructions
  • Approvals:

    • EMI conducted and radiated EN61204-3 Class A,
    • Safety EN60950
    • UL 294 Access Control, UL 603 Burglar Systems, UL 1076 Proprietary Burglar, UL 1481 Fire Alarm Systems
    • C603-M1988, ULC C1076, ULC S318 Burglar systems
    • CSA 22.2 #205 Signal Equipment file # S8102
  • Specifications are subject to change without notice.