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Fantini CosmiSwitches & Thermostats

Fantini Cosmi Immersion aquastat external adjustment 10/90°C C03A3

Fantini Cosmi C03A3 immersion aquastat with external adjustment for heating systems, offering 10–90°C range and ±3°C calibration accuracy. Features GC 1/2 PN10 immersion thread and 6±1°C differential, suitable for…

SKU 3G-CBM-03581

Also listed as: FAN 06302 · FAN-06302

Brand
Fantini Cosmi
Item
Immersion aquastat external adjustment 10/90°C C03A3
Category
Switches & Thermostats
UNSPSC
39122229 — Temperature switch
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

Fantini Cosmi
model
C03A3RI
differential c
6±1
immersion thread
GC 1/2 PN10
protection level
IP40
temperature range c
10 ÷ 90
calibration accuracy c
±3
maximum bulb temperature c
150

Datasheet Content

3G-CBM-03581 à 06 Immersion thermostats for direct mounting Thermostats for direct mounting on the pipeline, supplied with special casing for immersion into the control- led liquid. Suitable for boilers, heating systems, circulation pumps, burners, air heaters. 21 Ø8 70 Dimensions (mm) 8 40 85 15 10 37 4 100 Temperature Differential Calibration Maximum Protection range accuracy bulb temperature level °C K °C °C C03A3 10 ÷ 90 6±1 ±3 150 IP40 C03B3 40 ÷ 120 6±1 ±3 150 IP40 EXECUTION WITH INTERNAL REGULATION Ø8 70 Dimensions (mm) 8 40 85 15 10 100 42 C03A3RI 10 ÷ 90 6±1 ±3 150 IP40 C03B3RI 40 ÷ 120 6±1 ±3 150 IP40 *The differential is subtracted from the range value. The differential values refer to a thermal gradient of 1K/hour in liquid and 4K/hour in air. ELECTRICAL FEATURES Two directions microswitch of instant action with AGcdO EXAMPLE OF ELECTRICAL connection contacts. N R Contact parameters in compliance with EN 60730-1: 15(6) S A 250V~ 50Hz. T 1 N Parameters in compliance with EN 60947-5-1: Nominal insulation voltage: Ui 380V~. 1 3 5 13 Nominal continuous current: Ith 15A. 2 4 98 96 R R -- RICARICA RESTART Nominal operating current Ie 220V- 250V~ 380V~ S 0 -- STOP STOP 97 95 Resistive load AC-12 - 15A 10A 14 97 95 Inductive load AC-15 - 2,5A 1,5A 2 4 6 98 96 Direct current DC-13 0,2A - - 4 2 1 A2 A1 L STANDARDS AND CERTIFICATES Compliance with standards EN 60947-5-1, EN 60730-1. ISPESL approval for C03A3. INSTALLATION Direct immersion mounting of the bulb through a threaded sheath GC 1/2 PN10 (included in the package). OPERATION When the temperature increases: 1-2 are opening, 1-4 are closing. Liquid expansion function. FEATURES Sensing element with stainless steel diaphragm. Copper bulb and capillary. Cooper sheath with connection Gc 1/2 PN10. base, cover and knob in shock-proof self-extinguishing thermoplastic material V0. Electrical connection output with PVC cable gland. Admissible body temperature: 120°C. Storage and transport temperature: -35 ÷ 120°C.

Technical Documents

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Fantini Cosmi Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

Fantini Cosmi C03A3 immersion aquastat with external adjustment for heating systems, offering 10–90°C range and ±3°C calibration accuracy. Features GC 1/2 PN10 immersion thread and 6±1°C differential, suitable for boiler and hydronic applications.

Frequently Asked Questions

Where can I buy Fantini Cosmi C03A3 aquastat in your region?

3G Electric sources and delivers the Fantini Cosmi C03A3 immersion aquastat to your location, your location, and across your region. We handle all import logistics, customs clearance, and customs documentation. Lead time on request; contact us for availability and USD invoicing.

What is the temperature range and calibration accuracy of the C03A3?

The C03A3 operates from 10°C to 90°C with ±3°C calibration accuracy and a 6±1°C differential. Maximum bulb temperature is 150°C. It features GC 1/2 PN10 immersion thread (IP40 protection) for direct boiler and hydronic system mounting.

What is the lead time for delivery to your region?

Lead time on request. 3G Electric coordinates all logistics to your region, including customs import handling and customs clearance. Delivery available to your location, your location, and major industrial cities. Contact us with your timeline and quantity for a firm quote.

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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