| Features | Specifications | DataSheet | Technical Manual |
The ScadaFlex™ Uninterruptible DC Power Supply is a reliable, battery backed, industrial power supply featuring extended operating temperature capability and snap-on DIN rail mounting.
Two power supply models are available; providing a choice of 12Vdc or 24Vdc power. ScadaFlex Uninterruptible Power Supplies use the latest cool off-line switching technology that accepts a wide range of input power, AC or DC, without large bulky, inefficient transformers. No switches, jumpers or wiring changes are required for 120V or 220V, AC or DC, operation.
When outside power is available, the power supply output is regulated 13.8 Vdc (12 volt version) or 27.6 (24 volt version), for maximum performance from radios and other battery operated equipment. The DC output is filtered and protected from power line transients.
When outide power is lost, the ScadaFlex UPS automatically switches over to a low-cost lead-acid "Gell-Cell" battery, providing constant glitch-free DC power to the control system. A built-in microprocessor constantly monitors the condition of the battery. When the battery reaches the end of it's capacity (during an extended power outage), the UPS cleanly switches off power to the control system and prevents deep discharge damage to the battery. The same microprocessor control quickly and safely recharges the battery when outside power is restored. Separate power failure and battery status alarm relay contacts are provided.
Specifications |
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| ScadaFlex DC Uninterruptible Power Supply - 12 Volt Model (90-0011) Datasheet | |
| DC Output | |
| Output Voltage, nominal | 13.8Vdc |
| Output Voltage, range with External Power | 13.5Vdc to 14.1Vdc |
| Output Voltage, range with Battery Power | 9.5Vdc to 13.8Vdc |
| Continuous Output Current | 2.5A up to 55°C, derate linearly to 1.5A @ 75°C (55°C to 75°C, derate 2%/°C) |
| Peak Output Current | 3.0A (10 seconds, 25% Duty Cycle) |
| Overload Protection (Current Limit, Type - External Power) | 3.5A, Foldback current limiting |
| Overload Protection (Current Limit, Type - Battery Power) | 5.0A (25°C), Self resetting Polyfuse |
| Battery Thresholds | |
| Battery OK Threshold | >12.0Vdc |
| Low Battery Threshold | <10.5Vdc |
| Battery Cut-off Threshold | <10.0Vdc |
| ScadaFlex DC Uninterruptible Power Supply - 24 Volt Model (90-0012) Datasheet | |
| DC Output | |
| Output Voltage, nominal | 27.6Vdc |
| Output Voltage, range with External Power | 27.0Vdc to 28.2Vdc |
| Output Voltage, range with Battery Power | 19.0Vdc to 27.6Vdc |
| Continuous Output Current | 1.25A up to 55°C, derate linearly to 0.75A @ 75°C (55°C to 75°C, derate 2%/°C) |
| Peak Output Current | 1.5A (10 seconds, 25% Duty Cycle) |
| Overload Protection (Current Limit, Type - External Power) | 2.0A, Foldback current limiting |
| Overload Protection (Current Limit, Type - Battery Power) | 3.0A (25°C), Self resetting Polyfuse |
| Battery Thresholds | |
| Battery OK Threshold | >24.0Vdc |
| Low Battery Threshold | <21.0Vdc |
| Battery Cut-off Threshold | <20.0Vdc |
| Input Power - Both Models Datasheet | |
| Input Voltage | 90 to 264Vac / 130 to 375Vdc |
| Input Current | 0.50A at 120Vac 0.25A at 240Vac |
| Recommended Input Fuse | 1.0A Slo-Blo (120Vac) 0.5A Slo-Blo (240Vac) |
| Input Frequency | DC or 47 to 63Hz |
| Efficiency | approx. 85%, 100% load, 120Vac In |
| Battery Support (batteries are user supplied) - Both Models Datasheet | |
| Supported Battery Technology | Sealed ("Gell-Cell" Lead Acid) |
| Battery Capacity | 3AH to 18AH |
| Battery Charging Technique | Pulsed Constant Current, followed by Constant Voltage Float Charge |
| DC Output (with external power) - Both Models Datasheet | |
| Line Regulation | 1%, low-line to high-line |
| Load Regulation | 3%, 0% to 100% Load |
| Ripple and Noise | 500mV pk-pk maximum |
| Hold Time | >20ms at 100% Load |
| Overload Protection | Foldback Current Limiting Automatic Restart |
| Isolation | Input to Output >= 2500VAC Input to Ground >= 1500VAC Output to Ground >= 500VDC |
| Alarm Outputs - Both Models Datasheet | |
| Quantity | 2 Isolated relay contacts |
| Alarm Action | Normally closed, open on alarm |
| Alarm Conditions | Alarm Output#1 - Power Fail Alarm Output#2 - Low-Battery |
| Alarm Contact Rating | 1A @ 30Vdc, 0.5A @ 120Vac |
| Environmental Specifications - Both Models Datasheet | |
| Dimensions | 4.2" W x 4.2"L x 2.3" D (105mm x 105mm x 58mm) |
| Mounting | 35mm, DIN rail |
| Operating Temperature | -40°C to +75°C (-40°F to +167°F) |
| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
| Humidity | 5 to 85% RH (non-condensing) |
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