AG Publications MC Equipment Catalogue Issue

- Electrical

Sterling - Inverters & Chargers

Sterling Pro Pure SB Inverters

Pro Power SB inverters by Sterling provide a genuine sinewave output, so this range is ideal for sensitive and modern appliances where the quality of the waveform can be important. Built in protection against overload, over-temperature, short circuit.

VL-450

VL-451

VL-452

VL-453

VL-454

VL-455

Part No.

Model

SIB12300

SIB12600

SIB121000

SIB121600

SIBR121000

SIBR121600

Input voltage (V, DC) Nominal output voltage (V, AC) Output frequency (Hz) Output power (W) continuous Output power (W) peak

12

12

12

12

12

12

230

230

230

230

230

230

50

50

50

50

50

50

300

600

1000

1600

1000

1600

600

1200

2000

3200

2000

3200

Waveform

Sine

Sine

Sine

Sine

Sine

Sine

DC Connections

1m cable with 8mm ring

1m cable with 8mm ring

M8 stud

M8 stud

M8 stud

M8 stud

AC Connections

Euro/UK socket

Euro/UK socket

Euro/UK socket

Euro/UK socket

hard-wired

hard-wired

Optional remote panel

yes

yes

yes

yes

yes

yes

Cables included

yes

yes

no

no

no

no

Height (mm)

210

250

300

300

300

300

Width (mm)

190

190

190

190

190

190

Depth (mm)

85

85

85

85

85

85

Weight (kg)

1.4

2

2.2

3.6

2

3.6

There are several types of inverter output ranging from pure sine-wave to square-wave, the main difference is that the former is a smooth flowing and constantly changing voltage, much like what is produced and supplied by the grid. Other terms commonly used include “quasi”, stepped or modified waveforms that fall in between those two, and are usually regarded as a compromise. These are types of alternating current or “AC”, as the voltage and the flow of current changes direction from positive to negative to positive etc. The quality of the waveform is measured by how much it deviates from a true sine-wave. Looking at the diagram you can see the differences between the types of waveform. While the average voltage is typically the same (230V for the UK), the effects of the different types of waveform can vary depending on the type of equipment you’re running. Therefore it is important to choose the type of inverter that suits your requirements – a true sinewave inverter is the best choice for most modern appliances.

Pure Sine Wave

Modified / Quasi Sine Wave

Square Wave

71

Tel: +44 (0)2476 390111

Fax: +44 (0)2476 390110

www.midlandchandlers.co.uk Midland Chandlers