Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

Fantini Cosmi Adjustable pressure switch B12HMN 60-300 bar - Switches & Thermostats
Fantini CosmiSwitches & Thermostats

Fantini Cosmi Adjustable pressure switch B12HMN 60-300 bar

The Fantini Cosmi B12HMN is an adjustable pressure switch for hydraulic and pneumatic systems operating from 60–300 bar. It features a G 1/4 threaded connection, 40–80 bar differential adjustment, and IP40…

SKU 3G-CBM-03573

Also listed as: FAN 04250 · FAN-04250

Brand
Fantini Cosmi
Item
Adjustable pressure switch B12HMN 60-300 bar
Category
Switches & Thermostats
UNSPSC
39122229 — Temperature switch
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
connection
G 1/4 threaded
protection
IP40
differential
40-80 bar
max pressure
300 bar
pressure range
60-300 bar
max fluid temperature
80°C

Datasheet Content

FAN04240 à 56 Pressure switches up to 300 bar with adjustable differential Pressure switches for control and regulation of all fluids and non-explosive gases. Suitable for compression plants, boilers, tanks, autoclaves, ventilation plants, lubrication plants and in general whenever a pressure up to 300 bar must be controlled. 88 49 59 105 Range Differential Sensitive element Connection Protection Availability max. pressure G/14 degree bar bar bar B12FN 12 ÷ 50 6 ÷ 15 60 threaded IP40 in stock B12GN 25 ÷ 150 12 ÷ 40 180 threaded IP40 in stock B12HN 60 ÷ 300 40 ÷ 80 350 threaded IP40 in stock WITH BLOCKING AND MANUAL RESET B1FMN 12 ÷ 50 6 ÷ 15 60 threaded IP40 in stock B12GMN 25 ÷ 150 12 ÷ 40 180 threaded IP40 in stock B12HMN 60 ÷ 300 40 ÷ 80 350 threaded IP40 in stock WATERPROOF CASING EXECUTION 100 4,5 123 47 B12FNY 12 ÷ 50 6 ÷ 15 60 threaded IP65 in stock B12GNY 25 ÷ 150 12 ÷ 40 180 threaded IP65 in stock B12HNY 60 ÷ 300 40 ÷ 80 350 threaded IP65 in stock 1 Bar = 100Kpa *The differential must be deducted from the range value. ELECTRICAL FEATURES Snap action SPDT microswitch, contacts in EXAMPLE OF ELECTRICAL WIRING AgCdO. P 1 4 2 1 2 4 Nominal insulation tension Ui 415V~ R - RESET Continuous duty nominal current Ith 16A 0 - STOP Operating nominal current Ie 220V- 380/415V~ Resistive load AC-1 - 16A P Inductive load AC-3 - 6A A2 Continuous current DC-13 0,2A - 1 4 2 A1 HOMOLOGATION AND STANDARDS Complies with EN 60947-4-1 standards. INSTALLATION Direct installation on the pipe. MOUNTING MODEL If these devices are used as control pressostats (pressure lack), verify that maximum pres- N° 2 fori M4 sure does not exceed maximum supported sensitive element pressure. Possibility of mounting on metallic clamp, exept for the waterproof casing versions. 35 mm OPERATION When pressure increases: 1-2 opens, 1-4 closes. In case of fluid temperatures higher than the maximum allowed, connect the pressure switch to the pipe by inserting a metallic spiral between the pressure switch and the pipe to facilitate heat dispersion. In the pressure switch with blocking and manual reset at maximum pressure, the reset takes place when the pressure is below the value set on differential. FEATURES Piston sensitive element, brass connection. Metallic frame. Cover in shockproof thermoplastic material. Output connections with PVC cable gland. Adjustable differential. Threaded connection G 1/4. Maximum temperature of the controlled fluid: 80°C. Pressure switch body admissible temperature: 60°C. Storage and transport temperature: -35 ÷ 60°C. Unit weight: 0,47 Kg B12FN-B12GN. Unit weight: 0,46 Kg B12HN.
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The Fantini Cosmi B12HMN is an adjustable pressure switch for hydraulic and pneumatic systems operating from 60–300 bar. It features a G 1/4 threaded connection, 40–80 bar differential adjustment, and IP40 protection, suitable for industrial machinery control applications.

Frequently Asked Questions

What is the Fantini Cosmi B12HMN pressure switch used for?

The Fantini Cosmi B12HMN is an adjustable pressure switch designed for control and regulation of fluids and non-explosive gases in industrial machinery. It is suitable for compression plants, boilers, tanks, autoclaves, ventilation plants, and lubrication systems where pressures up to 300 bar must be controlled.

What are the specifications of the Fantini Cosmi B12HMN?

The Fantini Cosmi B12HMN has a pressure range of 60–300 bar with an adjustable differential of 40–80 bar. It features a G 1/4 threaded connection, IP40 protection, and a maximum fluid temperature of 80°C. The sensitive element is a piston with a brass connection, and it includes a snap-action SPDT microswitch rated at 16A continuous current.

Where to buy the Fantini Cosmi B12HMN in Singapore?

3G Electric supplies the Fantini Cosmi B12HMN adjustable pressure switch to customers in Singapore. We handle logistics, customs clearance, and delivery to your facility. Contact our team for pricing and lead time on this SKU (3G-CBM-03573) and other industrial control components.

How to install the Fantini Cosmi B12HMN pressure switch?

Install the Fantini Cosmi B12HMN directly on the pipe using the G 1/4 threaded connection. If fluid temperature exceeds 80°C, insert a metallic spiral between the switch and pipe for heat dispersion. For control applications, ensure maximum pressure does not exceed the sensitive element rating. Mounting on a metallic clamp is possible except for waterproof versions.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Pressure switch B12HN 60-300 bar
Fantini Cosmi
Pressure switch B12HN 60-300 bar
Pressure adjustment switch B12FN 12-50 bar
Fantini Cosmi
Pressure adjustment switch B12FN 12-50 bar
Pressure switch B12GNY 25-150 bar
Fantini Cosmi
Pressure switch B12GNY 25-150 bar
Adjustment pressure switch B12GN 25-150 bar
Fantini Cosmi
Adjustment pressure switch B12GN 25-150 bar
B12GMN 25-150 bar adjustment pressure switch
Fantini Cosmi
B12GMN 25-150 bar adjustment pressure switch
Pressure switch B12FNY 12-50 bar
Fantini Cosmi
Pressure switch B12FNY 12-50 bar

More from Fantini Cosmi

View all Fantini Cosmi parts
Ambient thermostat CH115RF white
Fantini Cosmi
Ambient thermostat CH115RF white
Fantini Cosmi
Fantini Cosmi
Immersion aquastat external adjustment 10/90°C C03A3
Fantini Cosmi
Fantini Cosmi
Branching box KBE3
Fantini Cosmi
Fantini Cosmi
Room thermostat CH111 silver
Fantini Cosmi
Fantini Cosmi
Daily program C58C silver
Fantini Cosmi
Fantini Cosmi
Immersion aquastat fixed setting 100°C C06A3M
Fantini Cosmi
Fantini Cosmi
Immersion aquastat external adjustment 40/120°C C03B3
Fantini Cosmi
Fantini Cosmi
Spacing bar, 1m, PVC KJSSP