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APC – SRT5KTF – Isolation Step-Down Transformer – Tested

Manufacturer

OEM Part Number

SRT5KTF

GPS Part Number

SRT5KTF

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Price:

$1,128.99

Specifications
View Spec Sheet
Voltage AH/kVA Length Width Height Weight
170-280VAC 4,800 W 5.12in 17.01in 26.00in 125.0lb
Voltage 170-280VAC
Amp/H 4,800 W
Length 5.12in
Width 17.01in
Height 26.00in
Weight 125.0lb

APC Smart-UPS โ€” Isolation Step-Down Transformer (SRT5KTF)

This is the Tested Version.

SKU: APC-SRT5KTF ย |
Type: Tower/Rack Isolation & Step-Down transformer (208/240ย Vย in โ†’ 120/208ย V out, with 240ย V pass-through). 12 total outlets:
8ย ร—ย NEMAย 5-20R, 2ย ร—ย NEMAย L6-20R, 1ย ร—ย NEMAย L6-30R, 1ย ร—ย NEMAย L14-30R. Input: NEMAย L6-30P locking plug, 3ย ft (0.9ย m) cord.

  • Outlet mix: 8ร— 5-20R (accepts 5-15P/5-20P), 2ร— L6-20R, 1ร— L6-30R, 1ร— L14-30R (12 total).
  • Input: 208/240ย V single-phase via L6-30P; 1 cord, 3ย ft (0.9ย m); 50/60ย Hz.
  • Capacity: 4,800ย VA / 4.8ย kW (5ย kVA class).
  • Isolation capability: Functions as a step-down or an isolation transformer for noise reduction and neutral reference.
  • Rack/tower: Tower or 19″ rack (requires APC rail kit SRTRK2 for rack mount).

Technical Specifications โ€” SRT5KTF
Parameter Detail
Product Type Smart-UPS Isolation / Step-Down Transformer (Tower/Rack)
Nominal Input Voltage 208ย V / 220ย V / 240ย V (selector switch)
Input Voltage Range 170โ€“280ย VAC
Input Connection NEMAย L6-30P; 1ย cord; 3ย ft (0.9ย m)
Output Voltages 120ย V / 208ย V (plus 240ย V via dedicated receptacle)
Output Receptacles 8ร— 5-20R; 2ร— L6-20R; 1ร— L6-30R; 1ร— L14-30R (12 total)
Maximum Output Power 4,800ย VA / 4,800ย W
Input / Line Frequency 50/60ย Hz
Dimensions (Hร—Wร—D) 5.12ย ร—ย 17.01ย ร—ย 26.00ย in (130ย ร—ย 432ย ร—ย 660ย mm)
Net Weight 125.0ย lb (56.7ย kg)
Mounting Tower or rack (install directly above UPS in rack; rail kit SRTRK2 required)
Included User manual
Environment Operating: 32โ€“104ย ยฐF (0โ€“40ย ยฐC), 0โ€“95% RH (non-condensing); Altitude: 0โ€“10,000ย ft
Storage: 5โ€“113ย ยฐF (โˆ’15โ€“45ย ยฐC), 0โ€“95% RH; Altitude: 0โ€“50,000ย ft
Warranty (mfr.) 2-year repair or replace

Notes & Replacement

SRT5KTF can operate as a step-down or isolation transformer. Set the rear input-voltage selector (208/240ย V) to match the utility/UPS output.
For rack installs, mount the transformer directly above the UPS and use APC rail kit SRTRK2. For a non-isolation 5ย kVA step-down with all 120ย V outlets, see SRT5KRMTF.

Product Options โ€” Tested vs. Refurbished Transformers
Option Description Warranty
Tested Input selector, breakers, and all receptacles verified under load; cord/plug inspected. 90โ€‘Day
Refurbished Cleaned and serviced; cosmetic touch-ups as needed; full distribution & breaker re-test after service. 1โ€‘Year

    • Use case: Feed 120ย V and select 208/240ย V loads from a 208/240ย V UPS or utility feed.
    • Installation: Tower or 19″ rack; mount above the UPS; group loads by receptacle type.
    • Isolation benefit: Reduces common-mode noise and establishes a neutral reference for 120ย V IT gear.

Compatibility & Variants Matrix
Model Input / Plug Outputs Typical Use / Notes
SRT5KTF 208/240ย V / NEMAย L6-30P (3ย ft cord) 8ร— 5-20R; 2ร— L6-20R; 1ร— L6-30R; 1ร— L14-30R; 4,800ย VA Isolation + step-down; tower or rack (SRTRK2); mount above UPS.
SRT5KRMTF 208ย V / NEMAย L6-30P 12ร— 5-20R on four branches Step-down (non-isolation); all 120ย V outlets for dense loads.
AP9626 / AP9627 208/200ย V / NEMAย L6-30P AP9626: 12ร— 5-20R ย |ย  AP9627: 4ร— L5-20R Legacy 5ย kVA step-down modules with straight-blade or twist-lock mixes.

 

Why buy from Gruber
  • Professionally tested โ€” Selector, breakers, and all outlets confirmed under load.
  • Exact fit hardware โ€” Ready for tower or rack installs with the correct rail kit guidance.
  • Data-center friendly โ€” Locking L6-30P input and mixed-type outputs to match real-world racks.
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