Trade Discount 25%
Security Power Supply 24V DC 3A Dual Channel AC Fail Outputs Ness
Ness 24V DC 3A security power supply features dual channel outputs plus AC fail and low battery outputs. Ideal for alarm and security installations.
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Alternatively Known As: 24V Security Power Supply, Dual-Channel Switch-Mode Power Supply, Battery-Backed Alarm Power Supply
Technical Specifications
- Model: TPS24-3DC
- Input Voltage: 240V AC, 215–255V AC, 50Hz
- Input Current: 0.8A at full load
- Output Voltage: 24V DC
- Output Current: 3A
- Output Configuration: Single 3A output with dual-channel supply architecture
- Battery Charger: 27.6V DC at 0.7A
- Battery Type: Two 12V sealed lead-acid batteries connected in series
- Monitoring Outputs: AC OK relay and battery fault/low-battery relay
- Indicators: Green AC OK LED, red low-battery/fault LED
- Protection: Constant-current limiting, short-circuit shutdown and automatic recovery
- Output Ripple: Less than 50mV peak-to-peak at full load
- Efficiency: 80% typical
- Operating Temperature: 0°C to 45°C
- Safety Standard: AS/NZS 60950.1:2003
- EMC Standard: AS/NZS CISPR 11:2004 Class B
- Dimensions (H x L x W): 80mm x 273mm x 145mm
- Weight: 1.5 kg
Key Features
- Regulated 24V DC output rated at 3A
- Separate 27.6V DC battery charging channel
- Automatic transfer to battery power during mains failure
- AC fail and low-battery relay outputs for alarm monitoring
- Short-circuit and overload protection with auto-reset recovery
- Low-noise switch-mode design
- Suitable for indoor security and access-control installations
- Supply-only format without an enclosure
Professional Installation Requirements
- Installation and servicing must be performed by suitably qualified personnel in a restricted-access area. The unit contains hazardous mains voltages and should be installed in accordance with applicable Australian electrical requirements.
Applications
- Security alarm systems
- Access-control systems
- CCTV and electronic security equipment
- Battery-backed 24V DC equipment
- Commercial and industrial security installations
Standards & Compliance
- AS/NZS 60950.1:2003 safety standard as specified in the manufacturer’s technical manual
- AS/NZS CISPR 11:2004 Class B electromagnetic compatibility standard as specified in the manufacturer’s technical manual
Environmental Benefits
- Approximately 80% typical operating efficiency helps reduce wasted electrical energy
- Automatic battery charging and mains-failure transfer support extended equipment service continuity
- Short-circuit protection and automatic recovery can reduce avoidable component replacement
- Designed for use with rechargeable sealed lead-acid batteries, reducing reliance on disposable batteries
Warranty Information
Ness manufactured or supplied products are covered by a 3-year warranty from the date of purchase, unless otherwise specified. Faulty products may be repaired or replaced at Ness Corporation’s discretion, subject to the warranty terms.
Available Now
Available through Ness Corporation and authorised Australian distributors; the TPS24-3DC is listed as a special-order product, so availability should be confirmed before purchase.
