APC by Schneider Electric SRTL5KTF vs APC by Schneider Electric SRTL5KRM2UT-5KRMTF: Specification Comparison
Both the SRTL5KTF and the SRTL5KRM2UT-5KRMTF are APC Smart-UPS Ultra 5 kVA isolation and step-down transformer products designed to convert 208 V (or 240 V) input to 120 V output for downstream equipment. The SRTL5KTF is a tower-form transformer without an integrated UPS, while the SRTL5KRM2UT-5KRMTF is a 4U rack-mount unit that combines the step-down transformer function with a full on-line Li-Ion UPS. This comparison covers power and outlet capacity, physical form factor and installation, and UPS and management features.
In This Guide
- How do the two units differ in rated power capacity and outlet configurations?
- Which unit better fits rack-dense or tower-based data center deployments?
- Does one unit include integrated UPS, battery, and remote management capabilities the other lacks?
- Which should you choose: the SRTL5KTF or the SRTL5KRM2UT-5KRMTF?
- Side-by-Side Specs
- FAQ
How do the two units differ in rated power capacity and outlet configurations?
The SRTL5KTF's rated power output is not stated in its provided specifications; it is described as a 5 kVA transformer only. The SRTL5KRM2UT-5KRMTF explicitly states 4,900 VA / 4,900 W rated output with a maximum configurable power of 4,900 VA / 4,900 W and a crest factor of 3:1, meaning it can handle loads with high peak currents. Harmonic distortion on the SRTL5KRM2UT-5KRMTF is specified at less than 2%, and output frequency is 50/60 Hz ±3 Hz synchronized to mains; neither figure is provided for the SRTL5KTF.
Outlet count also differs. The SRTL5KTF provides eight NEMA 5-20R, two NEMA L6-20R, one NEMA L6-30R, and one NEMA L14-30R — twelve receptacles total, including a NEMA L14-30R not present on the other unit. The SRTL5KRM2UT-5KRMTF provides twelve NEMA 5-20R, two NEMA L6-20R, and two NEMA L6-30R — sixteen receptacles total, with no NEMA L14-30R. Buyers requiring a NEMA L14-30R split-phase receptacle should note only the SRTL5KTF includes one.
Which unit better fits rack-dense or tower-based data center deployments?
The SRTL5KTF is described as a tower unit with optional rack-mount kit; its single listed dimension is 17.01 in (43.2 cm) and it weighs 125.00 lb (56.7 kg). A rack unit count is not specified in the provided data. Its input cable is 3 ft (0.91 m). Mounting preference is listed as 'No preference' with 'Rack-mounted with kit' as the mounting mode, indicating rack mounting requires an accessory.
The SRTL5KRM2UT-5KRMTF is a purpose-built 4U rack-mount unit, 6.9 in (176 mm) in height, with rack mounting brackets, support rails, and stabilization feet included. It weighs 159.37 lb (72.29 kg) — 34.37 lb heavier — and its input cable is 10.007 ft (3.05 m), providing considerably more reach to a PDU or panel. The unit mounts horizontally at the front of the rack and is not listed as two-post mountable. Buyers with 4U of available rack space and a need for integrated battery runtime will find the SRTL5KRM2UT-5KRMTF a self-contained solution; buyers with limited rack space or an existing UPS may prefer the lighter tower SRTL5KTF.
Does one unit include integrated UPS, battery, and remote management capabilities the other lacks?
The SRTL5KTF's provided specifications contain no reference to a battery, UPS topology, bypass, runtime, or network management. It appears to function solely as an isolation and step-down transformer with no integrated power protection beyond the transformer itself.
The SRTL5KRM2UT-5KRMTF integrates a full on-line (double-conversion) UPS with Li-Ion battery rated at 180 V, a typical recharge time of 1.5 hours, and a projected battery life of 8–10 years. It includes internal automatic and manual bypass, a 1,260 J surge energy rating, and audible/visible alarms prioritized by severity. A pre-installed Network Management Card 3 with environmental monitoring provides remote visibility via serial port, USB port, and network. The unit is ENERGY STAR V2.0 certified, dissipates 1,047 Btu/h, and has an acoustic level of 55 dBA. None of these UPS or management specifications are present for the SRTL5KTF.
Which should you choose: the SRTL5KTF or the SRTL5KRM2UT-5KRMTF?
Our take: The SRTL5KRM2UT-5KRMTF is the stronger choice when continuous power protection, remote management, and a self-contained rack installation are required. It delivers a fully specified 4,900 VA / 4,900 W on-line UPS with Li-Ion battery, a pre-installed Network Management Card 3, and 1,260 J of surge protection — none of which are present in the SRTL5KTF's provided specifications. It also offers sixteen outlets versus twelve and a 10 ft input cable versus 3 ft, benefiting deeper rack environments. However, it weighs 34.37 lb more (159.37 lb vs. 125.00 lb) and consumes 4U of rack space, whereas the SRTL5KTF is a tower unit that can be rack-mounted with an optional kit, suits floor or wall installations, and uniquely provides a NEMA L14-30R receptacle. Choose the SRTL5KTF when a lighter, topology-agnostic step-down transformer with a NEMA L14-30R output is sufficient and an external UPS already exists upstream.
Side-by-Side Comparison
Spec-for-spec, from manufacturer data.
| Specification | APC by Schneider Electric SRTL5KTF | APC by Schneider Electric SRTL5KRM2UT-5KRMTF |
|---|---|---|
| Product Type | Step-down isolation transformer | On-line UPS with step-down transformer |
| Rated Power (VA) | — | 4,900 VA |
| Rated Power (W) | — | 4,900 W |
| Main Input Voltage | 208 V / 240 V | 208 V AC 1-phase (240 V alt.) |
| Output Voltage | 120 V / 208 V (240 V alt.) | 120 V AC 1-phase (240 V alt.) |
| Input Connection | NEMA L6-30P | NEMA L6-30P |
| Output Receptacles | (8) NEMA 5-20R, (2) L6-20R, (1) L6-30R, (1) L14-30R | (12) NEMA 5-20R, (2) L6-20R, (2) L6-30R |
| UPS Topology | — | On-Line (double conversion) |
| Battery Type | — | Li-Ion |
| Battery Recharge Time | — | 1.5 h |
| Battery Life | — | 8–10 years |
| Surge Energy Rating | — | 1,260 J |
| Network Management | — | Pre-installed NMC3 with environmental monitoring |
| Rack Units | — | 4U |
| Weight | 125.00 lb (56.7 kg) | 159.37 lb (72.29 kg) |
| Input Cable Length | 3 ft (0.91 m) | 10.007 ft (3.05 m) |
Frequently Asked Questions
Which should you choose: the SRTL5KTF or the SRTL5KRM2UT-5KRMTF?
The SRTL5KRM2UT-5KRMTF is the stronger choice when continuous power protection, remote management, and a self-contained rack installation are required. It delivers a fully specified 4,900 VA / 4,900 W on-line UPS with Li-Ion battery, a pre-installed Network Management Card 3, and 1,260 J of surge protection — none of which are present in the SRTL5KTF's provided specifications. It also offers sixteen outlets versus twelve and a 10 ft input cable versus 3 ft, benefiting deeper rack environments. However, it weighs 34.37 lb more (159.37 lb vs. 125.00 lb) and consumes 4U of rack space, whereas the SRTL5KTF is a tower unit that can be rack-mounted with an optional kit, suits floor or wall installations, and uniquely provides a NEMA L14-30R receptacle. Choose the SRTL5KTF when a lighter, topology-agnostic step-down transformer with a NEMA L14-30R output is sufficient and an external UPS already exists upstream.
Does the SRTL5KTF include a battery and runtime like the SRTL5KRM2UT-5KRMTF does?
Based on the provided specifications, the SRTL5KTF contains no battery, UPS topology, or runtime data — it is spec'd as a transformer only. The SRTL5KRM2UT-5KRMTF integrates a Li-Ion battery rated at 180 V with a 1.5-hour recharge time and a projected 8–10 year battery life.
Which unit takes up less rack space?
The SRTL5KRM2UT-5KRMTF is rated at 4U and ships with rack mounting hardware included. The SRTL5KTF is a tower unit; a rack unit count is not stated in its provided specifications, and rack mounting requires an optional kit.
Can I manage either unit remotely over the network?
The SRTL5KRM2UT-5KRMTF ships with a pre-installed Network Management Card 3 with environmental monitoring and supports connectivity via serial port, USB port, and the network card. The SRTL5KTF's provided specifications include no mention of network management, connectivity ports, or remote monitoring capability.
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