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Description

Product Description

hikvision

Hikvision DS-PR531-3A

SKU: 314300678

key feature is the 3A Bus Power Supply Unit, which supplies power to all connected devices. It also offers a 3A AUX output (shared with the bus power supply) for sensors and peripherals, and a dedicated 3A siren output, ensuring reliable alarm notifications.

The total output power is up to 4A (AUX/Bus + Siren). The device has a built-in bus extender to increase the bus range and supports expander slots for flexible system expansion.

The power supply is equipped with a 7Ah backup battery, ensuring continuous operation even in the event of a mains power outage.

Technical specifications include a primary power supply of ~100-240V 50/60Hz, 1.4A typical, the ability to supply 15VDC 5A (0.5A per battery), and support for 12VDC batteries up to 7Ah.

The operating temperature range is -10°C to 50°C, and the relative humidity can reach 90% non-condensing. Dimensions are 360 mm × 260 mm × 96.3 mm. The product meets CE, CB, and EN 50131 (Grade 2, Class II) standards, confirming its high quality and compliance with international safety standards.

DS-PR531-3A(314300678)_image_1

The Hikvision DS-PR531-3A is an ideal solution for professional security systems, combining reliability, flexibility, and advanced technical features.

 

Specification Hikvision DS-PR531-3A

OutputsAuxiliary Power Output1
On-board sounder output1
Bus interconnectionBus-extenderYes
Bus technologyHalf-Duplex RS-485
Bus wiring4-Core Alarm Cable (at least 2×0.5mm²+2×0.22mm²)
Power supply - generalPS typeType A
Quiescent current75 mA @15VDC (when on battery without external load)
Power supply - primary power supplyMains Input~ 100-240V 50/60Hz, 1.4 A typ. @115 VAC, 0.85 A typ. @ 230 VAC
Power supply capacity15 VDC 5 A (0.5 A dedicated to battery)
Power supply - auxiliary power supplyBattery pack1 × rechargeable sealed lead-acid (SLA) battery (not included by default)
Battery capacity12VDC, up to 7Ah (≥ 5600 mAh in charged state)
Recommended batteryOUTDO OT7-12 (7Ah), Yuasa NP7-12FR (7Ah)
Battery stand-byUp to 12 hrs
Recharge period24 hrs to 80% (5600 mAh)
Floating voltage13.8VDC
Low energy voltage11.60±0.5 V (Restore when rise above 11.74±0.5 V)
Cut-off voltage11.0 VDC for deep-discharge protection
Power supply - general outputTotal output capacityNominal 14.5VDC 4 A, range 10.7-15 VDC with up to 120 mV ripple (VPP)
Total output protection4 A resettable eFuse
Power supply - auxiliary power outputOutput protection3 A resettable eFuse
Power supply - Bus power outputOutput protection(Shared AUX power output)
Power supply - sounder power outputOutput protection3 A resettable eFuse
EnvironmentalOperating temperature-10°C to 50°C (14°F to 122°F), indoor use only
Storage temperature-20°C to 60°C (-4°F to 140°F)
Relative humidity10% ~ 90% non-condensing
PhysicalDimension (W × H × D)360 mm × 260 mm × 96.3 mm
Tamper-proofFront and Rear
Installation methodWall mount
ComplianceElectrical conformityCE, CB
EN 50131Security Grade 2, Environmental Class II

*We have done our best to provide an accurate description and specifications. Please note that these were created and translated automatically using manufacturer data. Colors and appearance may look different depending on your monitor settings. Before buying, please check the product sheet from the manufacturer for official information. The “Specification” section may refer to different variants of the same device (depending on the exact model name/identifier). If anything is unclear or inconsistent, please contact the seller before purchase. If warranty information is provided, it refers to the manufacturer’s warranty unless stated otherwise. Product images may show multiple color variants. If the model name does not include a color designation, it typically refers to the default version (e.g., for cameras: white). Other variants are indicated in the product name, such as “Black” or “BLK”.

Documents Hikvision DS-PR531-3A

PDF
DS-PR531-3A_Datasheet_20250910.pdf
PDF
UD31982B-D_Regulatory-Compliance-and-Safety-Information_SC-Wired-Class-B_20250210.pdf

Features

Features
Producer: HIKVISION