Rack Power Supplies
Showing Results for Rack Power Supplies
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QNAP
SKU: PWR-ADAPTER-65W-A04
QNAP 65W External Power Adapter - PWR-ADAPTER-65W-A04
In stock · Ships same business day$99.99 -
QNAP
SKU: PWR-ADAPTER-65W-A02
QNAP 65W External Power Adapter TBS-453A 1 - PWR-ADAPTER-65W-A02
In stock · Ships same business day$130.99 -
QNAP
SKU: PWR-PSU-700W-FS01
QNAP 700W Power Supply Unit FSP - PWR-PSU-700W-FS01
In stock · Ships same business day$748.99 -
QNAP
SKU: PWR-PSU-750W-CW01
QNAP 750W Power Supply Unit CWT - PWR-PSU-750W-CW01
In stock · Ships same business day$347.99 -
QNAP
SKU: PWR-PSU-800W-DT01
QNAP 800W Delta Power Supply - PWR-PSU-800W-DT01
In stock · Ships same business day$799.99 -
QNAP
SKU: PWR-ADAPTER-90W-A01
QNAP 90W External Power Adapter - PWR-ADAPTER-90W-A01
In stock · Ships same business day$124.99 -
QNAP
SKU: PWR-ADAPTER-96W-A02
QNAP 96W External Power Adapter; - PWR-ADAPTER-96W-A02
In stock · Ships same business day$154.99 -
QNAP
SKU: SP-4BAY-PSU
QNAP Power Supply For 4 Bay Nas - SP-4BAY-PSU
In stock · Ships same business day$173.99 -
QNAP
SKU: SP-8BAY2U-S-PSU
QNAP Power Supply Unit FOR 2U 8BAY NAS FOR - SP-8BAY2U-S-PSU
In stock · Ships same business day$349.99 -
QNAP
SKU: PWR-PSU-550W-DT01
QNAP PWR-PSU-550W-DT01 QNAP 550W Power Supply Unit
In stock · Ships same business day$322.99 -
QNAP
SKU: PWR-PSU-550W-FS02
QNAP TVS-H1288X TVS-H1688X. Replacement OF - PWR-PSU-550W-FS02
In stock · Ships same business day$311.99 -
QNAP
SKU: FAN-4CM-R01
QNAP Ul No. E187205 / Cul No. E187205 / Tuv No. - FAN-4CM-R01
In stock · Ships same business day$35.00 $24.99 Save $10.01 -
Vertiv
SKU: 11008VH
Vertiv 11008VH - Rpdu Basic Standard 20A
In stock · Ships same business day$412.00 $282.99 Save $129.01 -
Vertiv
SKU: 11011VH
Vertiv 11011VH - Rpdu Basic Standard 30A
In stock · Ships same business day$469.00 $321.99 Save $147.01 -
Vertiv
SKU: 11016VH
Vertiv 11016VH - Rpdu Basic Standard 30A
In stock · Ships same business day$979.00 $671.99 Save $307.01 -
Vertiv
SKU: 11427VH
Vertiv 11427VH - Rpdu Metered Standard 20A
In stock · Ships same business day$558.00 $382.99 Save $175.01
Rack Power Supplies
Rack-mount power supplies deliver regulated DC to access control panels, CCTV head-ends, and intrusion systems from a 19-inch rack or cabinet. They provide battery backup, output supervision, and centralized distribution for multi-door or multi-camera installations.
Plan Your Deployment
- Output voltage (12/24 VDC) and total amperage at continuous load
- Rack units (1U, 2U, 3U) and depth for the cabinet
- Battery backup sizing (amp-hours) for target hold-up time
- Output count and individually fused/supervised channels
- Fire alarm interface for controlled lock release on alarm
What to Look For
Size the supply for 125% of the calculated continuous load and confirm the battery bank meets the hold-up time required by local code (commonly 4 or 24 hours). Supervised outputs report shorted or open circuits back to the panel, which is required for UL 1076 and UL 294 installations. Rack integration keeps service access at the central gear location.
Common Deployment Scenarios
Rack power supplies are standard in enterprise IDF closets, data center security rooms, and multi-door openings where copper home-runs converge on a central location. They replace scattered wall-wart or transformer-based power in larger systems.