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Fantini CosmiSwitches & Thermostats

Fantini Cosmi Immersion aquastat external adjustment 40/120°C C03B3

Fantini Cosmi Immersion aquastat 40/120°C C03B3

SKU 3G-CBM-03582

Also listed as: FAN 06306 · FAN-06306

Brand

Fantini Cosmi

Item

Immersion aquastat external adjustment 40/120°C C03B3

Technical Specifications

Fantini Cosmi

dimension a

8 mm 

dimension b

40 mm 

dimension c

85 mm 

dimension d

15 mm 

dimension e

10 mm 

dimension f

37 mm 

dimension g

4 mm 

contact type

Two directions microswitch of instant action with AGcdO contacts 

differential

6±1 K 

bulb material

Copper 

operation type

Liquid expansion function 

overall length

100 mm 

immersion depth

70 mm 

sensing element

Stainless steel diaphragm 

sheath material

Copper 

housing material

Shock-proof self-extinguishing thermoplastic material V0 

protection level

IP40 

sheath connection

GC 1/2 PN10 

temperature range

40–120 °C 

contact rating ac12

250 V~ 50 Hz, 15 A 

calibration accuracy

±3 °C 

standards compliance

EN 60947-5-1, EN 60730-1 

thermal gradient air

4 K/hour 

ispesl approval model

C03A3 

connection thread size

GC 1/2 PN10 

immersion bulb diameter

Ø8 mm 

thermal gradient liquid

1 K/hour 

maximum bulb temperature

150 °C 

connection pressure rating

PN10 

nominal continuous current

15 A 

nominal insulation voltage

380 V~ 

admissible body temperature

120 °C 

electrical connection cable gland

PVC cable gland 

operation on temperature increase

1-2 are opening, 1-4 are closing 

internal regulation version length

100 mm 

storage transport temperature range

-35 to 120 °C 

nominal operating current resistive load 220v

Not specified 

nominal operating current resistive load 250v

15 A 

nominal operating current resistive load 380v

10 A 

internal regulation version additional dimension

42 mm 

View Full Spec Sheet

Technical Documents

(1)

Technical Document 1

PDF Document

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Fantini Cosmi Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Fantini Cosmi Immersion aquastat 40/120°C C03B3

Used in

Common applications for Fantini Cosmi

Oil-fired boiler burner control — Fantini Cosmi ambient thermostat C16I and pressure switch B12HNY for fuel-pump lockout and room-temperature feedback.

Pneumatic compressor load management — B12DN or B13CN pressure switch for unload-valve control and tank cutout in 5–150 bar air systems.

Hydronic heating-plant commissioning — B12GNY and B12CRNY switches for pump-discharge and low-pressure monitoring in chilled-water and hot-water loops.

Industrial steam and hot-water vessel safety — B12HNY high-pressure switch and A96D/A95B level regulators for water-level and overpressure interlocks.

Thermal-storage tank management — A95B and A96D liquid-level regulators with 15-meter cable reach for boiler-makeup and expansion-tank applications.

Portable pump and pressure-test equipment — B12DN with adjustable differential for mobile hydraulic-circuit monitoring and component proof-pressure validation.

Fantini Cosmi Products

3G Electric supplies Fantini Cosmi switches & thermostats. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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