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Main applications: Industrial liquid heating, hot water circuits, containers and buffer tanks, in applications where the heating elements immersed length must be as short as possible.

They can be fitted with one or two. They have in standard one 32A res relay, 3 pole, 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.

- 5 standard power levels: 1,5kW; 3kW; 4,5kW; 6kW; 9kW. On request, it is possible to reach 21kW by increasing the L length).

- 2 types of standard fittings: 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. AISI 304 or Incolloy 800 (AISI 316; AISI 321; Incolloy 825 on request).

Fitting material: brass, swiveling on housing, brazed on tubes. Supplied without gasket and without nut. See accessories below.

Thread: 2"1/2, or M77x2
Enclosure: 130mm × 130mm, 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: two thermowells in AISI304, dia.10mm × 8.4mm.

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

Three-phase models 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 rating on power relay.

Power supply connection: on built in connection block, 6 × 10mm² for power connection and 2 × 2.5mm² for remote safety device or remote control.

Not heating immersed zone: 50mm.

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

Voltage: Single pole 230V or three phases 380-400V (Star connection with neutral).

Standard equipment:
- Thermostat with outside knob.

- Main power switch.

- Large size (dia. 16mm) green and red LED pilot lights.

- On models with manual reset: reset access by M25 screwed cap, preset at 100°C (212°F).

Variants on request:
- Thermostat adjustment access under the screwed M25 cap.

- Thermostat without limiter, ranges 4-40°C (40-105°F), 0-60°C (30-140°F) or 30-110°C (85-230°F) 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 at 130°C (266°F)- Thermal cut out (TCO) located inside immersion heater pocket.

- 400V power supply without neutral: consult us.