Shanghai Jastar Industrial Co., Ltd.
Instant · 7 kW · Slim panel 7,000 W 220 / 240 V 30 – 55 °C OEM / ODM

7 kW Instant Electric Water Heater — Slim Front Panel, Touch Control, 205 mm Wide

A 7 kW heater on the same 365 × 205 mm body as the rest of the A3 series, but with the touch controls gathered into a narrow vertical column down one side — the front stays a clean flat panel. Hot water in about two seconds, outlet held between 30–55 °C. Stainless steel cup or cast aluminium element. No plug: wired to the 40 A leakage breaker supplied.

Model
JS-A3-3
Rated power
7,000 W
Voltage / Frequency
220 / 240 V ~ · 50 / 60 Hz
Heating element
Stainless steel cup or cast aluminium, 7 kW (selectable)
Hot water in
≈ 2 seconds
Temperature range
30 – 55 °C
Control
Touch control with LED display, vertical control column
Power cable
≥ 4 – 6 mm² copper core
Power connection
No plug · 40 A leakage breaker supplied
Unit size
205 × 68 × 365 mm
Carton
4 pcs · 710 × 420 × 390 mm · 12 kg

MOQ 100 pcs for custom panel colour, pattern and logo · 1,000 pcs for custom packaging. Samples from 1 pc — the sample price is higher than the bulk price, and we refund the difference once you place a bulk order within 30 days of receiving the sample. Prices are quoted per order, EXW Shanghai — tell us your quantity and destination port and we will reply within one working day.

CE RoHS 100% tested before shipment

Why this model

A flat front with the controls out of the way

The control column sits to one side, leaving the panel clean.

365 × 205 × 68 mm

365 × 205 × 68 mm

Same body as the JS-A3-1 and JS-A3-2, so all three controls come off one tooling and one carton — 4 pieces at 12 kg.

7 kW, two seconds

7 kW, two seconds

On-demand heating brings the outlet to temperature in about two seconds and holds it while the shower runs.

Controls on a side column

Controls on a side column

The touch keys and LED sit in a slim vertical strip down one side, keeping the flat front free of knobs. Water and electricity stay separated inside, with over-temperature, dry-heat and leakage protection built in.

White or black body

White or black body

Supplied in white as standard; a black version is available from the same production run. Logo from 100 pieces, custom packaging from 1,000.

Specifications

Technical data — JS-A3-3

Every unit is pressure-tested and function-tested before packing. Custom panel finish and power connection available for OEM orders.

Electrical & performance
Rated power7,000 W
Rated voltage220 / 240 V ~ · 50 / 60 Hz
Heating elementStainless steel cup or cast aluminium, 7 kW (selectable)
Heating time≈ 2 seconds
Temperature range30 – 55 °C
ControlTouch control with LED temperature display
Front panelFlat panel with a vertical control column
Power cable≥ 4 – 6 mm² copper core
Power connectionNo plug · wired direct, 40 A leakage breaker supplied
ProtectionWater–electricity separation · Over-temperature protection · Dry-heat protection · Leakage protection
Waterproof ratingIPX4
CertificationCE · RoHS
Water, dimensions & packing
Unit size205 × 68 × 365 mm
Inner box365 × 105 × 405 mm
Net / gross per unit2 kg / 3 kg
Pcs per carton4 pcs
Carton size710 × 420 × 390 mm
Gross weight12 kg
Body colourWhite (custom on request)
LoadingLCL and FCL both available

OEM & ODM

Make it your own brand

We build for importers, wholesalers and own-brand retailers — from a panel colour change to a fully customised product and gift box.

Panel colour, pattern & logo

Body colour and front panel in your colour and pattern, with your logo printed or laser-etched. Artwork proof before mass production.

MOQ 100 pcs

Packaging

Custom printed inner box and master carton, colour or gift box, barcode and retail labelling. Export cartons are drop-tested.

MOQ 1,000 pcs

Voltage & plug standard

Voltage build (110 / 220 / 240 V, AC 380 V for the three-phase unit) and plug standard (EU / US / UK / AU / Africa) matched to your market.

MOQ 100 pcs

Documents & certification

CE and RoHS test reports, product photos, specification sheets and packing lists for your own listings and customs clearance.

Ready to share

Samples & price protection

Test one unit before you commit to a container

Every model is available as a sample, and every price step you reach is paid back to you — the sample itself included.

Samples from 1 pc

Order a single unit to test it, open it up and show your own customers. No minimum quantity, any model in the range, shipped with its CE and RoHS test reports.

MOQ 1 pc

The sample price difference comes back

A single unit is charged above the bulk price, because of one-off handling and air freight. Place a bulk order for the same model within 30 days of receiving the sample and we refund the difference.

30-day rebate

Earlier shipments are rebated too

Our four price tiers — 10–99 / 100–999 / 1,000–9,999 / 10,000+ pcs — are counted cumulatively over the 30 days after you receive the goods. Reach a higher tier and we refund the difference on the units you have already shipped.

Cumulative over 30 days

Tell us which model you want to test and we will send the sample invoice the same working day.

Request a quotation for JS-A3-3

Send us your quantity, destination port and power connection requirements — we will come back with prices and lead time within one working day.

Product Catalog 2026

Browse the full range — instant water heaters, hot water taps and bathroom & desk heaters — in one PDF.