CyberPower Online S Series OL1K5RM 1500 VA UPS

1500 VA · 1200 W W · Double-conversion (Online) · 8

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Capacity 1500 VA
Wattage 1200 W
Topology Double-conversion (Online)
Outlets 8
Output waveform Pure sine

CyberPower Online S Series OL1K5RM 1500 VA UPS is a double-conversion (online) UPS rated 1500 VA (1200 W). Add up what you plug in (PC, monitor, router) and keep it under about 70% of the watt rating, so it doesn't run flat in seconds during a power cut. It came out in 2025.

Released: 2025-12-16

Specifications

Key specs

Capacity: 1500 VA
Wattage: 1200 W
Topology: Double-conversion (Online)
Outlets: 8
Output waveform: Pure sine
Released: 2025-12-16
Part number: OL1K5RM
EAN / UPC: 0649532937295

Features

UPS topology: Double-conversion (Online)
Output power capacity: 1.5 kVA
Output power: 1200 W
Waveform: Pure sine
Input operation voltage (min): 100 V
Input operation voltage (max): 125 V
Input frequency: 40 - 70 Hz
Output frequency: 50/60 Hz
Surge energy rating: 710 J
Heat dissipation: 328 BTU/h
Number of input phases: 1
Efficiency (ECO mode): 15%
Power factor: 0.8
Input power factor: 0.99
Output power factor: 0.8
ECO mode: Yes
Emergency Power Off (EPO): Yes
EMI/RFI noise filtering: Yes
Noise level: 47.6 dB
Audible alarm(s): Yes
Audible alarm modes: Overload alarm, Alarm when on battery, Low battery alarm, Fault

Ports & interfaces

AC outlet types: NEMA 5-15P
Power plug: NEMA 5-15P
AC outlets quantity: 8 AC outlet(s)
USB port: Yes
Serial interface: Yes
Emergency Power Off (EPO) connector: Yes

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Battery

Battery technology: Sealed Lead Acid (VRLA)
Battery capacity: 7 Ah
Battery voltage: 12 V
Battery recharge time: 4 h

Design

Form factor: Rackmount
Housing material: Metal
Rack capacity: 2U
Cable length: 3 m
Product colour: Silver
LED indicators: Power

Operational conditions

Operating temperature (T-T): 0 - 40 °C
Storage temperature (T-T): -15 - 45 °C
Operating relative humidity (H-H): 0 - 0.9%
Storage relative humidity (H-H): 0 - 0.95%
Operating altitude: 0 - 3000 m
Non-operating altitude: 0 - 14999 m

Weight & dimensions

Width: 433 mm
Depth: 374 mm
Height: 86 mm
Weight: 16.2 kg

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About this product

CyberPower Essential Online. Prevent business interruptions and safeguard mission-critical enterprise network equipment. The CyberPower Essential Online OL1K5RM is a rack mounted UPS with double conversion topology. It provides sine wave output to critical applications and equipment that require seamless power correction. The Extended Battery Module (EBM) expands runtime, and Fast Charge Technology restores full backup power faster. This model comes with Smart Battery Management charging technology, and energy-saving GreenPower UPS™ ECO Mode. The OL1K5RM offers generator compatibility and delivers clean AC power with zero transfer time. Its sine wave output keeps sensitive equipment working by preventing unnecessary shutdowns that can occur with simulated sine wave output. With a $400,000 lifetime connected equipment guarantee and a three-year warranty, you can trust CyberPower’s commitment to high quality.

User manual (PDF) · Datasheet (PDF)

OL1K5RM vs similar UPS

	CyberPower Online S Series OL1K5RM 1500 VA UPS	CyberPower OLS1500ERT2UA-N 1500 VA UPS	CyberPower OLS1500ERT2UA-B 1500 VA UPS	Vertiv Liebert GXE3-1500IMT 1500 VA UPS
Capacity	1500 VA	1500 VA	1500 VA	1500 VA
Wattage	1200 W	1350 W	1350 W	1350 W
Topology	Double-conversion (Online)	Double-conversion (Online)	Double-conversion (Online)	Double-conversion (Online)
Outlets	8	8	8	8
Output waveform	Pure sine	Pure sine	Pure sine	Pure sine
Released	2025	2025	2025	2024