Sterling Inverter-Charger Combis
Sterling 1600, 2500 & 3500 Watt Combined Inverter Charger
'Winner of Sailing Today '
Best Buy in Combi Test against Victron, Mastervolt & Studer
Standard Features: 1600, 2500 & 3500 Watt Combined Inverter Charger
- 30 amp through current
- P.F.C. (power factor correction)
- Includes remote control with 10 metre cable
- 4 step progressive charging 8 battery type selector
If you require power assist, parallel connection, three phase output functions or any other enhanced combi features then this range is not for you . If you're not familiar with these things this ProCombi is perfect for you.
Modern combis are getting more and more complex, with each company trying to outdo the next with abilities beyond the understanding and requirements of most people. This detracts from the combis main strength of being easy to install and easy to use. There is, no doubt, there is a market for all the sexy functions but the vast majority of combi users simply do not need them and never will. Most people simply require the unit to act as a high performance constant current battery charger when on mains power then crossover to act as an efficient inverter when on battery – and that's it!
The problem with enhanced functions is, even if they are not used, they eat up valuable power. The more functions on a product running (even thought you do not use them) the higher the quiescent current on the inverter (the current the unit uses itself to operate). Complex combis at 12V can use as much as 9.5 amps whereas Pro Combi can use as little as 2 amps.
Sterling have reversed this trend with this Pro Combi range by stripping away the unnecessary features from a complex combi, not only saving money but also lowering the critical quiescent current draw. The end result is a simple, straightforward product that does what you think it should. Using our years of experience in this market we have tailored the product range to suit 90% of people purchasing Combis.
The Sterling combi range includes important features not available in other alternative expensive combis not do they have the ability to charge totally flat batteries and allow through power with no batteries connected.
Remote Control
All devices include a remote control with 10 metre cable
What does the Pro Combi range offer?
On the battery charger side
- 4 step constant current battery charging
- 8 pre set battery type selector plus de-sulphation
- powerful charge rate
- will charge totally flat batteries
- PFC, draws about 30% less power than conventional units
On the crossover side
- 20 m/s crossover time, will not to lose any equipment due to power loss
- 30 amp through current ability on all models
- twin 30 amp / single 50 amp on the 3500 watt models
On the inverter side
- high overload ability
- high temperature rating
- low quiescent current
- power saver mode to automatically reduce power
- allows through power even with no batteries connecte
On the remote control
- ability to switch the unit on/off
- ability to select or de select power saver mode
General
- removable local panel to give remote control with waming and function I.e.d.
- remote on/off plus remote power saver on/off
- 10 metres remote cable
- almost 20 alarms/ warnings/and information
General Features for ProCombi Q
- Battery bank size: autodetected / auto program adjusted
- Remote control: front control panel removable as remote
- Size (mm) (w x h x l): 185 x 180 x 430 (1600 & 2500)
- Weight: 18kg (1600); 20kg (2500)
General Features for ProCombi S
- Remote control: front control panel removable as remote
- Size (mm) (w x h x l): 185 x 180 x 430 (1600 & 2500); 227 x 180 x 512 (3500)
- Weight: 20kg (1500); 20kg (2500); 24kg (3500)
There are 2 main models the Pro Combi Q for quasi-sinewave) and the Pro Combi S (for Pure-sinewave). So the simple question is what best suits your needs?
Pro Combi Q, (quasi-sine model) suitable for most installations, where you would use a microwave, fridge, hair dryer, vacuum cleaner, kettle, computer, etc. The vast majority of products will run on quasi-sinewave.
Pro Combi S ( sine wave model ) where all the above plus washing machines, bread makers , thyristor controlled equipment are used - then sinewave is required to make the choice even simpler, we have a 6 months exchange/upgrade policy. Terms apply.
If you purchase a Pro Combi Q and find there is some equipment that you cannot run due to the Quasi Sinewave and require Pure Sinewave, Sterling are happy to up-grade your quasi-sine unit for sinewave with the only cost being the difference between the 2 products ( The product must be returned in good condition,with original packing and in accordance with our terms and conditions).
| Description | Pro CombiQ | Pro CombiS |
| General Specification | ||
|---|---|---|
| Input wave form | Sinusoidal | Pure sine wave |
| Nominal voltage | Input 230 v a/c | Input 230 v |
| Low voltage trip | 184v+/- 4% | a/c 184v+/- 4% |
| Minimum engage | voltage 194v +/- 4% | voltage 194v +/- 4% |
| High voltage trip | 253v +/- 4% | 253v +/- 4% |
| High voltage re engage | 243v +/- 4% 270 v rms | 243v +/- 4% |
| Max input a/c voltage | 270 v rms | 270 v rms |
| Nominal input frequency | 50hz or 60hz auto detect | 50hz or 60hz auto detect |
| Low frequency trip | 7 hz for 50 hz, 58 hz for 60 hz | 47 hz for 50 hz, 58 hz for 60 hz |
| High frequency trip | 53 hz for 50 hz, 62 hz for 60 hz | 53 hz for 50 hz, 62 hz for 60 hz |
| Output wave form | (on bypass mode) same as input | (on bypass mode) same as input |
| Overload protection | Circuit breaker | Circuit breaker |
| Short circuit protection | Circuit breaker | Circuit breaker |
| Transfer switch rating | 30 amp | 1500-2500 w = 30 amp 3500 w= 50 amp |
| Efficiency online transfer mode | 96%+ | 95%+ |
| Line transfer time | 20 ms | 20ms |
| Bypass without battery connected | yes | Yes |
| Max bypass current | 30 amps | 30 amps |
| Bypass overload current | 35 amps: Alarm | 35 amps: Alarm |
| Inverter specification / output | ||
| Output wave form | Modified Sine Wave/ Quasi sine wave | Pure sine wave |
| Output continuous power watts | 1600 2500 | continuous 2100 (2500 30 min), 3200 ( 3500 30 mins) |
| Output continuous power VA | 2400 3600 | 3100 5000 |
| Power factor | 0.9 – 1.0 | 0.9 – 1.0 |
| Nominal output voltage rms | 230vac | 230vac |
| Max voltage rms | 260vac | 260vac |
| Output voltage regulation | +/- 10% rms | +/- 10% ms |
| Output frequency | 50hz+/-0.3hz or 60hz+/-0.3hz | 50hz+/-0.3hz or 60hz+/-0.3hz |
| Transient response time | <150ms;0% to 100% RCD load | <150ms;0% to 100% RCD load |
| Nominal efficiency | >85% | >88% |
| Surge rating | 1500model=4500va 2500model = 7200va | PQS1500 = 4500va PQS2500 = 7200va |
| Online current consumption at 12 v/24v | 12v: 1.8a 24: 0.9a | not available until March 2008 |
| Power saver mode current consumption | 12v: 0.4a 24v: 0.2a | not available until March 2008 |
| Short circuit protection | yes, less than 3 cycles | yes, less than 3 cycles |
| Inverter specification / input | ||
| Nominal input voltage | 12 or 24 v depending on model | 12 or 24 v depending on model |
| Minimum start voltage | 10 v for 12 v model 20v for 24 v | 10 v for 12 v model 20v for 24 v |
| Low battery alarm | 10.5v for 12 v model 21v for 24 v | 10.5v for 12 v model 21v for 24 v |
| Low battery trip | 10 v for 12 v model 20v for 24 v | 10 v for 12 v model 20v for 24 v |
| High voltage alarm | 15.5 for 12v model 30v for 24 v | 15.5 for 12v model 30v for 24 v |
| Power saver | Below 20 watts when enabled | Below 20 watts when enabled |
| Power saver | can be switched on/off on remote control | Same switched on/off on remote control |
| Charger mode specification | ||
| Input voltage range | 196-245 v ac | 196-245 v ac |
| Output voltage | Dependent on battery type selection | Dependent on battery type selection |
| Output current 12 v model | 1600: 40A; 2500: 50A | 1500: 40A; 2500: 70A; 3500: 100A |
| Output current 24 v model | 1600: 20A; 2500: 25A | 1500: 20A; 2500: 35A; 3500: 50A |
| Initial voltage for start up | 0-15v for 12 v x 2 /24v | 0-15v for 12 v x 2 /24v |
| Over charge protection shutdown | 15.712v x2for24v | 15.712v x2for24v |
| ProCombi Q and ProCombi S | |||
| Charger curves (4 stage constant current) battery types | |||
| 4 step digital controlled progressive charge | |||
| Battery type | Charge (v) | Float (v) | X 2 for 24 v |
| Gel USA | 14.0 | 13.7 | |
| AGM 1 | 14.1 | 13.4 | |
| AGM2 | 14.6 | 13.7 | |
| Sealed Lead Acid | 14.4 | 13.6 | |
| Gel Euro | 14.4 | 13.8 | |
| Open Lead Acid | 14.8 | 13.3 | |
| Calcium | 15.1 | 13.6 | |
| De-Sulphation | 15.5 for 4 hours | ||