Cotek > 3500 Watt 48 VDC Pure Sine Wave Inverter

The SD series is a pure sine wave inverter designed especially for the most demanding mobile and off-grid applications. SD series provides up to 90% of high efficiency and wide operating temperature range (from -20C to +60C) designed for many harsh environments.

The N+X parallel redundancy framework design can greatly improve the power system's flexibility and thus the system's volume and weight are remarkable reduced. SD series features a built-in transfer switch and synchronized operation with utility AC source. SD series can be used for N+1 (N≦14) redundancy and the ability of enlarge the capacity (Users can install maximum 15 units of inverters together in parallel in order to provide the power expansion). SD series also provides complete protection functions including Input low voltage, Overload, Short circuit, Low battery alarm, Input over voltage and over temperature.


Home and office appliances, portable power equipment, vehicle, yacht and off-grid solar power systems...etc.


Model SD3500-148
Series SD3500
Manufacturer Cotek
Additional Details Data Sheet


Type Pure Sine Wave
Operating Temperature Range -20C to +60C
Cooling Load & Thermal Control Fan
Dimensions (W x H x D) 11.146" x 5.056" x 19.527"
Weight 22.045 lbs
Shipping Method 25 lbs

DC Input

Input Battery Voltage 48 VDC
Max Current < 0.8 A

AC Input

AC Output Voltage 100 / 110 / 115 / 120 VAC +-12.5%
Frequency Selectable
50 / 60 Hz
Circuit Breaker
35 A


Maximum Output Power 3500 W
Peak Power
4500 W
Frequency 50 / 60 Hz +-0.1%