Booster set control panels
Booster set control panels with built-in variable speed drives
One to six pumps held at a single pressure set point by pre-programmed inverters in the panel. Swap a drive without replacing the booster set.
1 to 6 pumps
Single, twin, triple, quad, five and six pump configurations.
0.75 to 75kW
Wide kW and voltage range. 230V single phase available on smaller sizes.
IP66 enclosure
Mild steel as standard; polyester for outdoors; stainless available.
Off-the-shelf drives
Industrial-standard inverters, quick and cheap to maintain.
A G&G booster control panel holds system pressure at a set point you enter once, either on the inverter or on an optional touchscreen. A 4-20mA transducer reads the pressure, the drives adjust pump speed, and pumps stage on and off to meet demand. Because the drives are in the panel, not on the pumps, they last longer and a failed drive is replaced without touching the set.
Why panel-mounted drives
Pump-mounted inverters live with the heat and vibration of the motor. Mounting them in a wall panel away from the set extends their life, makes them easier to reach, and means a replacement is an off-the-shelf drive rather than a manufacturer-specific unit. It is also cheaper than OEM-mounted inverter systems.
One set point, no syncing
Up to six pumps run from one panel and one set point. You do not configure or synchronise multiple inverters; the panel does the staging.
Replacing failed Hydrovar or similar drives
A common use is replacing a booster set's original pump-mounted drives when they fail out of warranty. We build a panel to suit the existing pumps and pressure transducer, and the set keeps running. There is a full write-up in the knowledge hub.
Specification
| Pumps | 1 to 6 |
|---|---|
| Control | 4-20mA pressure transducer to a user-defined set point |
| Starting | Inverter as standard; DOL, star/delta and soft start available |
| Motor rating | 0.75 to 75kW per pump |
| Supply | 3ph 400V; 1ph 230V up to 2.2kW |
| Set point entry | On the inverter, or on the optional door-mounted touchscreen |
| Inputs | Pressure transducer, low level float |
| Outputs | Volt-free pump running, pump fault and low level |
| Control circuit | 24V DC |
| Enclosure | Powder-coated mild steel; polyester or stainless optional |
| Protection | IP66, door-interlocked isolator |
| Dimensions (twin) | 1.5 to 11kW: 600 x 600 x 300mm; 15 to 22kW: 800 x 800 x 300mm |
| Warranty | 12 months |
Product codes: BI1 to BI6. Full code tables are on the pump panels page.
Every panel ships with its wiring diagram, a test certificate and a 12-month warranty.
Options
Controls
- Touchscreen HMI (£819 + VAT)
- Ammeters
- Hours run indicators
- Spring-back switches
Site
- Generator inlet
- Panel heater with thermostat
- 230V socket for auxiliary equipment
- Polyester or stainless steel enclosure
Options are priced on your quote, itemised, so you can see what each one adds.
Price and lead time
Inverter panels with pressure control from £1,214 + VAT (single pump 0.75kW) and £1,973 + VAT (twin pump 0.75kW). DOL, star/delta and soft start versions from £453 + VAT.
List price. Trade and volume discounts available.
10 to 20 working days. Common twin sizes are often available from stock.
| Motor | Direct-on-line | Star/delta | Soft start | Inverter with pressure control | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 pump | 2 pumps | 3 pumps | 4 pumps | 1 pump | 2 pumps | 3 pumps | 4 pumps | 1 pump | 2 pumps | 3 pumps | 4 pumps | 1 pump | 2 pumps | 3 pumps | 4 pumps | |
| 0.75kW 230V | £453.20 | £622.27 | £1,046.33 | — | — | — | — | — | £730.79 | £1,207.07 | £1,879.36 | — | — | £1,936.08 | £2,660.30 | £3,537.41 |
| 1.5kW 230V | £453.20 | £622.27 | £1,046.33 | — | — | — | — | — | £752.17 | £1,249.84 | £1,943.10 | — | — | £1,973.09 | £2,718.23 | £3,614.66 |
| 2.2kW 230V | £453.20 | £622.27 | £1,046.33 | — | — | — | — | — | £752.17 | £1,249.84 | £1,943.10 | — | £1,298 | £2,064.83 | £2,856.64 | £3,807.78 |
| 0.75kW 400V | £453.20 | £622.27 | £1,046.33 | — | £523.02 | £976.65 | £1,522.47 | — | £732.20 | £1,209.76 | £1,883.61 | — | £1,213.88 | £1,973.09 | £2,718.23 | £3,614.66 |
| 1.5kW 400V | £453.20 | £622.27 | £1,046.33 | — | £523.02 | £976.65 | £1,522.47 | — | £753.45 | £1,252.39 | £1,947.34 | — | £1,397.71 | £2,051.95 | £2,835.72 | £3,773.98 |
| 2.2kW 400V | £453.20 | £622.27 | £1,046.33 | — | £523.02 | £976.65 | £1,522.47 | — | £753.45 | £1,252.39 | £1,947.34 | — | £1,443.27 | £2,082.53 | £2,880.78 | £3,835.14 |
| 3kW 400V | £453.20 | £622.27 | £1,046.33 | — | £523.02 | £976.65 | £1,522.47 | — | £753.45 | £1,252.39 | £1,947.34 | — | — | £2,307.84 | £3,215.53 | £4,293.81 |
| 4kW 400V | £453.20 | £622.27 | £1,046.33 | — | £523.02 | £976.65 | £1,522.47 | — | £783.61 | £1,312.72 | £2,037.98 | — | — | £2,307.84 | £3,312.09 | £4,388.77 |
| 5.5kW 400V | £453.20 | £622.27 | £1,046.33 | — | £523.02 | £976.65 | £1,522.47 | — | £829.78 | £1,405.20 | £2,176.78 | — | £1,557.88 | £2,975.73 | £4,137.70 | £5,518.55 |
| 7.5kW 400V | £453.20 | £622.27 | £1,046.33 | — | £523.02 | £976.65 | £1,522.47 | — | £868.87 | £1,482.81 | £2,292.91 | — | — | £3,225.19 | £4,464.41 | £5,951.47 |
| 11kW 400V | £475.01 | £657.28 | £1,201.97 | — | £523.02 | £976.65 | £1,522.47 | £2,977.35 | £890.68 | £1,519.64 | £2,448.70 | — | £2,756.98 | £3,426.36 | £4,734.78 | £6,387.61 |
| 15kW 400V | — | — | — | — | £562.40 | £1,103.97 | £1,723.58 | — | £1,113.35 | — | — | — | £3,483.50 | £4,781.45 | £7,111.83 | £8,212.61 |
| 18.5kW 400V | — | — | — | — | £629.10 | £1,226.90 | £1,818.47 | — | — | — | — | — | £4,310 | £5,137.13 | £7,284.84 | £10,138.60 |
| 22kW 400V | — | — | — | — | £629.10 | £1,226.90 | £1,818.47 | — | — | — | — | — | — | £5,681.09 | £7,457.84 | £11,006.52 |
| 30kW 400V | — | — | — | — | £758.55 | £1,423.33 | £2,984.75 | — | — | — | — | — | — | £6,753.32 | £7,640.17 | £13,620.14 |
| 37kW 400V | — | — | — | — | — | — | — | — | — | — | — | — | £5,662 | £7,055.50 | — | — |
| 45kW 400V | — | — | — | — | — | — | — | — | — | — | — | — | — | £9,516.23 | — | — |
Inverter panels include pressure control. Door-mounted touchscreen HMI is £818.58 extra. For outdoor use ask for a polyester enclosure.
All prices shown are list prices. Trade, account and volume discounts are available: ask when you request a quote. Prices exclude VAT and delivery. Issued 1 May 2026. Specifications are provisional pending sign-off of a wiring layout. Errors and omissions excepted.
Frequently asked questions
Jobs we have done with this range
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Telemetrix as standard across a pump service contractor's stations
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Panels for 1 to 6 pumps, direct-on-line to inverter, built in Stoke-on-Trent and held in stock.
Standard wastewater panels from £906 + VAT (single pump DOL) and £1,245 + VAT (twin pump DOL).
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Equipment manufacturers
OEM control panels
Fixed BOMs, one standard platform for your range, and reliable UK production at 5 to 200 panels a month.
Fixed unit price per platform and option block, agreed at design stage and held across the programme.
View OEM control panels
Building management systems
BMS control panels
From a points list to a tested, documented panel. We build for BMS integrators every day and understand what site teams need.
Priced per panel from the points list.
View BMS control panelsRequest a quote for Booster set controls
Tell us the pumps or points, the supply, the site and anything the panel must comply with. Attach a spec or drawing if you have one.
“The detail, and thought that goes into making these installer and end user friendly is second to none. The best control panels we've seen, let alone had the pleasure of using. Great products.”
- Wiring diagram, test certificate and 12-month warranty with every panel
- Built to BS EN 61439-2 and BS EN 60204-1 in Stoke-on-Trent
- We reply during working hours, usually the same working day
Got a project, or just need a quick answer?
Tell us what the panel has to do and we will come back with a price and a lead time. Existing accounts: reorders and spares go through the same form.