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Fantini Cosmi Electronic room hygrostat D40 - Switches & Thermostats
Fantini CosmiSwitches & Thermostats

Fantini Cosmi Electronic room hygrostat D40

The Fantini Cosmi D40 is an electronic room hygrostat for HVAC humidity control, featuring 6A 250Vca contacts and 5 UR% differential across a 30–90 UR% operating range. Ideal for commercial and residential climate…

SKU 3G-CBM-03700

Also listed as: FAN 66004 · FAN-66004

Brand
Fantini Cosmi
Item
Electronic room hygrostat D40
Category
Switches & Thermostats
UNSPSC
39122229 — Temperature switch
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

Fantini Cosmi
contacts
6(3)A 250Vca
differential
5 UR%
power supply
230Vca 50Hz
humidity range
30–90 UR%
protection degree
IP20
ambient temperature
0–50 °C

Datasheet Content

Hygrostat électronique d'ambiance 3G-CBM-03700 Hygrostat électronique d'ambiance adapté aux systèmes d'humidification ou de déshumidification des maisons et bureaux. 140 34 Dimensions (mm) 85 Alimentation Note des Plage d'humidité Différentiel Température Degré de électrique contacts relative ambiante admissible protection UR% UR% °C D40 230 Vca 50 Hz 6(3)A 250Vca 30 ÷ 90 5 0 ÷ 50 IP20 CARACTÉRISTIQUES ÉLECTRIQUES Alimentation : 230 Vca 50 Hz. Puissance maximale dissipée 2 VA. Capacité contacts : 6(3) A 250 Vca. Micro déconnexion (1B). Contacts de commutation sans tension EXEMPLE DE RACCORDEMENT ELECTRIQUE POUR EXEMPLE DE RACCORDEMENT ELECTRIQUE POUR UN UN SYSTEME DE DESHUMIDIFICATION SYSTEME D'HUMIDIFICATION DÉSHUMIDIFICATEUR HUMIDIFICATEUR HOMOLOGATION ET NORMES Conforme aux normes EN60730-1. INSTALLATION Montage mural. D40 Ø 4, 5 121 Entraxe entre les points de fixation OPÉRATION L'humidistat D40 détecte l'humidité ambiante grâce à un capteur capacitif, la compare à la valeur définie et commute le relais de sortie en mode d'humidification ou de déshumidification. Lorsque l'humidité augmente : ouvre contacts 3-4 et ferme contacts 4-5. Élément de détection électronique de type capacitif. NB : il est recommandé pour les environnements qui ne dépassent pas 85% HR, pour les environnements avec une humidité plus élevée, contactez notre service technique. CARACTÉRISTIQUES Indication LED : « On » lorsque l'humidité ambiante est supérieure à la valeur réglée. Boîtier en matériau thermoplastique VO auto-éteignable et antichoc. Poids unitaire 0,16 Kg. 3G-CBM-03700 Electronic room humidistat Electronic room humidistat suitable for humidification or dehumidification systems, for houses and offices. 140 34 Dimensions (mm) 85 Power supply Contacts Relative humidity Differential Ambient admissible Protection rating range temperature degree UR% UR% °C D40 230Vca 50Hz 6(3)A 250Vca 30 ÷ 90 5 0 ÷ 50 IP20 ELECTRICAL CHARACTERISTICS Power supply: 230Vca 50Hz. Maximum dissipated power 2VA. Contacts rating: 6(3)A 250Vca. Micro disconnection (1B). Voltage-free switching contacts. EXAMPLE OF ELECTRICAL CONNECTION FOR EXAMPLE OF ELECTRICAL CONNECTION FOR A DEHUMIDIFICATION SYSTEM A HUMIDIFICATION SYSTEM DEHUMIDIFIER HUMIDIFIER HOMOLOGATION AND STANDARDS Complies with EN60730-1 standards. INSTALLATION Wall mounting. Distance between fixing Interassi di centres fissaggio D40 Ø 4,5 121 OPERATION D40 humidistat detects ambient humidity through a capacitive sensor, compares it with the set value and switches the output relay for the humidification or dehumidification mode. When humidity rises: opens 3-4 contacts and closes 4-5 contacts. Electronic capacitive type sensing element. N.B. It is recommended for environments that do not exceed 85% RH , for environments with higher humidity contact our technical department. FEATURES LED Indication: “On” when ambient humidity is higher than the set value. Casing in VO self-extinguishing, shockproof thermoplastic material. Unit weight 0,16 Kg.
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Fantini Cosmi Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Fantini Cosmi D40 is an electronic room hygrostat for HVAC humidity control, featuring 6A 250Vca contacts and 5 UR% differential across a 30–90 UR% operating range. Ideal for commercial and residential climate management systems requiring reliable moisture regulation.

Frequently Asked Questions

What is the Fantini Cosmi D40 electronic room hygrostat used for?

The Fantini Cosmi D40 electronic room hygrostat is used for humidity control in HVAC systems, suitable for humidification or dehumidification in houses and offices. It detects ambient humidity with a capacitive sensor and switches the output relay to maintain the set level, making it ideal for commercial and residential climate management.

What are the specifications of the Fantini Cosmi D40 hygrostat?

The Fantini Cosmi D40 operates on 230 Vca 50 Hz power supply, with contacts rated at 6(3)A 250 Vca. It has a humidity range of 30–90 UR%, a differential of 5 UR%, and an ambient temperature range of 0–50 °C. The protection degree is IP20, and it complies with EN60730-1 standards.

Where to buy the Fantini Cosmi D40 in Singapore?

You can source the Fantini Cosmi D40 electronic room hygrostat through 3G Electric in Singapore. We handle logistics, customs clearance, and delivery to your site, providing technical support for HVAC humidity control applications. Contact us for availability and lead time on this Fantini Cosmi model.

How to install the Fantini Cosmi D40 hygrostat?

The Fantini Cosmi D40 is designed for wall mounting with a distance between fixing centres of 121 mm. Ensure the environment does not exceed 85% RH for reliable operation; for higher humidity, consult technical support. Connect voltage-free switching contacts per the wiring diagram for humidification or dehumidification systems.

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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