Shanghai Jastar Industrial Co., Ltd.
Dual voltage · 110 / 220 V 6,000 W 110 / 220 / 240 V 30 – 55 °C OEM / ODM

6 kW Dual Voltage Instant Electric Water Heater — Twin Element Options, 200 mm Wide

The same 6 kW, 110 / 220 / 240 V body as the JS-X3, offered with the higher-spec heating element options. Pick a stainless steel cup or a cast aluminium element when ordering — one SKU, two price levels, so a buyer can hold both a value and a premium line without a second tooling cost. Hot water in about two seconds, outlet held at 30–55 °C.

Model
JS-X4
Rated power
6,000 W
Voltage / Frequency
110 / 220 / 240 V ~ · 50 / 60 Hz
Heating element
Stainless steel cup or cast aluminium, 6 kW (selectable)
Hot water in
≈ 2 seconds
Temperature range
30 – 55 °C
Control
Touch control with LED temperature display
Power cable
≥ 4 mm² copper core
Power connection
No plug · 40 A leakage breaker supplied
Unit size
200 × 65 × 290 mm
Carton
5 pcs · 660 × 375 × 385 mm · 15 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

Twin element options on the volume body

Stainless steel or cast aluminium — a second price point on one SKU.

Two element options, one carton

Two element options, one carton

The stainless steel cup and the cast aluminium versions ship in the same 5-piece carton, so a distributor can mix a container without splitting the order.

5 pcs · 660 × 375 × 385 mm

5 pcs · 660 × 375 × 385 mm

Five units to a 15 kg master carton with the loading plan printed on the sheet: 20GP 1,880 pcs, 40GP 3,880 pcs, 40HQ 4,300 pcs.

6 kW on 4 mm² cable

6 kW on 4 mm² cable

Six kilowatts is enough for a shower in most 220 V markets and keeps the cable demand at ≥ 4 mm² copper core.

Kitchen, basin, shower

Kitchen, basin, shower

Bathroom, kitchen, wash basin or utility point — one unit, one spare parts list.

Specifications

Technical data — JS-X4

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

Electrical & performance
Rated power6,000 W
Rated voltage110 / 220 / 240 V ~ · 50 / 60 Hz
Heating elementStainless steel cup or cast aluminium, 6 kW (selectable)
Heating time≈ 2 seconds
Temperature range30 – 55 °C
ControlTouch control with LED temperature display
Power cable≥ 4 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 size200 × 65 × 290 mm
Inner box360 × 125 × 355 mm
Net / gross per unit2.15 kg / 3 kg
Pcs per carton5 pcs
Carton size660 × 375 × 385 mm
Gross weight15 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-X4

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.