250W CRPS Hot-Plug Redundant Switching Power Supply Replacement for Delta DPS-250AB-81 A DPS-250AB-81 B, Server PSU for Rack DVR, CVR, NAS & Storage Devices

This 250W CRPS hot-plug redundant switching power supply is a drop-in compatible replacement for Delta factory DPS-250AB-81 A and DPS-250AB-81 B power modules, widely deployed in rack-mounted DVR, CVR video surveillance recorders, network NAS storage and compact rack servers.

Manufactured to official CRPS redundant power specifications, it enables 1+1 redundant parallel configuration. If one power unit malfunctions, the other takes over load seamlessly without powering down the whole system, protecting critical video recording and data storage tasks.

Equipped with active power factor correction circuit, it achieves high energy efficiency and reduces heat generation under full load. The wide-range 100240V AC input adapts to global mains grids without extra voltage converters, delivering steady regulated 12V main and 24V auxiliary DC outputs to power multi-channel camera boards and hard disk arrays.

Integrated multi-layer intelligent protection circuits automatically cut off power output once overload, short circuit or over-temperature faults are detected, preventing permanent damage to core monitoring and storage hardware. The gold-plated CRPS communication connector supports PMBus real-time tracking of voltage, current and fault status for remote IT management.

The quick-release green pull tab allows tool-free hot swapping during system operation, no full equipment shutdown required for maintenance. The variable-speed cooling fan adjusts rotation speed according to internal temperature to lower idle operating noise.

Every unit undergoes strict full-load aging testing before shipment, with UL, CE and FCC safety certifications. The robust metal shell with dense ventilation mesh optimizes heat dissipation, ideal for round-the-clock deployment in security monitoring rooms, small data storage cabinets and industrial rack equipment.