SPS-10 12 VDC/10Amp Supervised (AC & Battery) Power Supply/Charger Module

Electronic Security Devices, Inc. (ESD) is an OEM power supply design and manufacturing company specializing in the creation of reliable, efficient power supplies and accessories for the access control industry. Founded in 1996, Electronic Security Devices manufactures innovative products that have been tested, proven and approved for use with proximity card readers. We focus on meeting and exceeding the unique specifications of our customers for companies of all sizes. A tradition of innovation and creativity is the keystone upon which Electronic Security Devices was founded. Electronic Security Devices sells directly to OEM manufacturers as well as to security system integrators throughout the United States. The model is SPS-10 12 VDC/10Amp Supervised (AC & Battery) Power Supply/Charger Module. The SPS-5 and SPS-10 are clean, efficient, heavy duty, low frequency off line switching power supplies with battery charger and power supervision. Even though the wattage is the same for both the 5 Amp 24VDC SPS-5, and the 10 Amp 12VDC SPS-10, we sell them separately for optimum performance. The SPS-5 and SPS-10 use a very low switching frequency of 23KHz, just above our hearing range. This, coupled with extensive filtering, provides a balance of super clean power and efficiency. This low frequency design also eliminates interference problems with card readers and can be used wherever a linear power supply is required. The SPS-5 and SPS-10 are self-contained with a universal line input of 85 to 264 VAC. The SPS-5 and SPS-10 each weigh less than 1.5 lbs and occupy less than ½ of a cubic foot of cabinet space. The SPS-5 and SPS-10 become an uninterruptible power supply when a stand-by battery(s) is connected with the supplied 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. Float charging means faster recovery time for the battery(s). There is no switch over or voltage drop when power fails. Standby battery(s) can be any capacity above 4 amp hours. The precise output voltage provides longer battery life. The SPS-5 has 1 Amp in reserve for charging the battery(s), while the SPS-10 has 2 Amps reserved. Power Supervision includes a battery cut off relay and a separate power trouble alarm relay. The battery cut off relay removes the battery from the load when the battery reaches its service limit. This prevents the battery from going into deep discharge. A typical Gel Cell battery left in deep discharge for more than a couple of days, will usually have to be replaced with a new one. The power trouble alarm relay output, form C contacts, can be used to signal a buzzer and/or other signaling device. The relay is normally energized for fail-safe operation. The relay has a green LED that is on when power is good. The relay will drop off of normal when the standby battery(s) reaches about 70% of capacity. This low voltage indication represents low battery and/or AC power failure. High voltage failure will also indicate power trouble. A Service Switch is provided to disable the power output. The Company employees designed the first (to our knowledge) switching power supply with linear performance. That product and many that followed have been tested and approved for use with proximity card readers. by the reader manufacturers. This gives you an idea of ESD's forward and innovative thinking.