Electric boiler heating element with 1.5 inch threaded connection, 4500W total power, 300 mm active length and AISI 304 stainless steel construction. The heater consists of three 1500W elements and uses an RST + N electrical connection, making it suitable for large electric boilers, hot water tanks, buffer tanks and professional or industrial systems requiring fast and stable water heating.

Main technical specifications:

- Thread: 1.5 inch
- Total power: 4500W / 4.5 kW
- Configuration: 3 x 1500W
- Voltage per element: 230V
- System supply: 230/380V with RST + N connection
- Active length: approximately 300 mm
- Material: AISI 304 stainless steel
- Product type: tubular electric boiler heating element
- Application: water heating
- Installation: threaded
- Suitable for large boilers, hot water tanks, buffer vessels and industrial systems
- Available to order
- Fast processing depending on availability

This 4500W configuration is a practical choice when more heating capacity is required than a typical 2000W or 3000W element can provide. The three separate 1500W heating circuits allow balanced electrical loading and fast water heating when correctly connected and protected.

The RST + N connection is an important technical detail. Each 1500W element operates at 230V between phase and neutral. In a three-phase installation, the three heater circuits are connected across phases R, S and T with a common neutral, according to the electrical design and wiring diagram. Installation must be performed by qualified personnel.

AISI 304 stainless steel provides good corrosion resistance for normal water-heating applications and is widely used for boiler and tank heating elements.

The 300 mm active length offers efficient heat transfer while keeping the heater compact enough for many hot water tanks and buffer vessels requiring higher installed power.

Typical applications include:

- large electric boilers;
- domestic and commercial hot water tanks;
- buffer tanks;
- heating-system storage tanks;
- commercial water-heating systems;
- hotels and guesthouses;
- restaurants and professional kitchens;
- sports and changing facilities;
- laundries;
- industrial installations;
- process-water heating;
- solar storage tanks;
- backup heating systems.

Electric boiler brand compatibility:

Suitable as a replacement heating element for technically compatible boilers, tanks and buffer vessels from brands including Ariston, Tesy, Eldom, Ferroli, Atlantic, Bosch, Gorenje, Drazice, Hajdu, Austria Email, Thermex, Vaillant, Viessmann, Stiebel Eltron, A.O. Smith, NIBE, Electrolux, Midea, Haier, Rheem, Rinnai, Baxi, De Dietrich, Chaffoteaux, Cointra, Aparici, Fleck, Regent, Teka, Saunier Duval, Tatramat, Dimplex, Fornello, Nobel, Omega, Uniline and other brands using matching technical specifications.

Compatibility must not be determined by brand alone. Before ordering, verify the 1.5 inch thread, 4500W total power, 3 x 1500W configuration, RST + N electrical connection, 300 mm active length, element diameter and available internal tank space.

Suitable both for replacing an existing heating element and for new water-heating projects. In professional installations, cable size, circuit protection, contactors, thermostat and independent over-temperature protection must be selected according to the total load and supply arrangement.

Available through RezistenteMag.ro for customers across Romania, the European Union and other supported European markets, with fast order processing depending on product availability.