Sola S1K/S3K Uninterruptible Power Supply (UPS)

As of: Wednesday, July 8, 2026

Protects against most adverse power conditions, including: frequency variations, surge, noise, blackouts, lightning, spike, brownouts, and over and under voltages
Data-line surge protection for phone or network included on every unit
Greater uptime with intelligent power management, full-sequence battery testing and two-level overload protection

WARNING: Cancer and Reproductive Harm California Proposition 65

Sola S1K/S3K Uninterruptible Power Supply Specifications

Input VAC:
Online Operation:
115 VAC: +20%/-25%

Frequency:
Online: 50/60 Hz ±1 Hz auto sensing

Overload Capacity:
120% ±10% (Three minutes online mode, 10 seconds on battery)

Max Output:
Continuous: 375 watts

Transfer Time:
Four ms typical

On Battery Voltage:
115 VAC: 115 VAC rms ±10%

Output Voltage Waveform:
Step sine wave at 115 V

Output Protection:
Electronically limited

Input Protection:
Circuit breaker

Recharge Time:
Four hours (to 95% capacity):

Lightning and Surge Protection:
ANSI/IEEE C62.41 categories A & B, IEC801.4, 801.5

Safety Certification:
115 VAC: UL listed to 1778, designed to meet UL497A, CSA certified to CSAC22.2 No. 107.1

EMI Compliance:
115 VAC: FCC Class B

Data Line Protection:
115 VAC: fax/modem, network

Indicators:
Online/utility fail/overload/replace battery

Audible Alarms:
Utility fail/overload/replace battery

Dimensions:
(L x W x H)
S1K: 5.3 × 3.8 × 12.6 in
S3K: 8.3 × 5.5 × 17.2 in

Warranty:
Two-year limited

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