Fittings from 1″1/2 to M77x2. With control thermostat. With or without and manual reset. Power up to 21kW with one built-in power relay. Heating elements dia. 8, 10 and 12 mm.

Main applications: Industrial liquid heating, hot water circuits, containers and buffer tanks.

These immersion heaters are designed for medium power applications, requesting power relays. They are fitted with one relay, 3 pole, 32A res. They have in standard two pilot lights and one main switch.

They are intended for indoor use.

These enclosures have a 40mm offset to go through tank thermal insulation.

They exist in:

– 6 standard power levels: 4kW; 6kW; 8kW; 10kW; 12kW; 14kW.

(on request, it is possible to reach 21kW with dia.12mm heating elements).

– 2 types of standard fittings with dia. 8mm heating elements: 1″1/2; M45x2.

– 3 types of standard fittings with dia. 10mm heating elements: 2″, 2″1/2; M77x2.

– 2 types of surface load density: 5W/cm² and 10W/cm². See technical introduction to optimize the surface load.

Heater tube material: 8mm dia. or 10 mm dia. AISI 304 or Incolloy 800 (AISI 316; AISI 321; Incolloy 825 on request).

Fitting material: brass, swiveling on housing, brazed on tubes. (AISI 304 or AISI 316, TIG welded, or brazed, models are available on request). Supplied without gasket and without nut. See accessories below.

Thread: 1″1/2 BSPP (ISO 228), and metric thread M45x2 (dia. 8 heating elements), and 2″,2″1/2,  M77x2  (dia. 10mm heating elements).

Enclosure: 130 mm x 130 mm, 150mm height, black PA66 fiberglass reinforced. Silicone foam gasket. Stainless steel cover screws with locking nuts.

Ingress protection class: Water and dust: IP54; shock resistance: IK 8 (with metal cable glands and M25 metal plug).

Temperature control: by 30-90°C (85-195°F) bulb and capillary thermostat, with outside knob access. Thermostat shaft has a waterproof gasket. Other temperature ranges available. See options hereunder.

Cable gland: M25, PA66. Mounted on a removable board for easier wiring access. A second hole for M25 cable gland is available, closed by a screwed cap.

Thermowell: one thermowell in AISI304, dia.10 mm, for M45 and 1″1/2 fittings, 2 thermowells for larger sizes.

Heating elements connections: terminals with stainless steel screw, nut and stainless steel washer.

Designed for applications in three-phase with neutral, however, these devices are equipped with straps for switching to single-phase supply. This change must be made by the professional technical staff able to calculate and observe the maximum permissible intensities on power relays.

Power supply connection:

– on built in connection block, 6x10mm² for power connection  and 2×2.5mm² for optional  external remote control.

Support grid: 1 grid AISI 304 for lengths from 400 to 600mm, 2 grids above.

Not heating immersed zone: 50mm.

Surface load: standard 5 W/cm² or 10 W/cm², others values on request.

Voltage: three phase 380-400V (Star connection with neutral). Single pole 230V is possible.

Standard equipment:

– Manual reset thermostat, reset access by M25 screwed cap, preset at 100°C (212°F).

– Main power switch.

– Large size (dia. 16mm) LED pilot lights. Green illuminated when heating is on. Red illuminated when manual reset is trigged.

Variants on request:

– Thermostat knob accessible under the cover by a M25 removable plug (on request).

– 4-40°C, 0-60°C or 30-110°C thermostats. Higher range on request.

– 4-40°C (40-105°F) temperature range with manual reset at 60°C (140°F).

– 0-60°C (32-140°F) temperature range with manual reset at 80°C (176°F).

– 30-110°C (85-230°F) temperature range with manual reset at130°C (266°F).

– Thermal cut out located inside immersion heater pocket.

– 400V power supply without neutral: consult us.

Electric Wiring

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