Gas Pressure Switch - Adjustable, 3–500 mbar, DG Series

The HONEYWELL KROMSCHRODER SW,PRESS, GAS,DG 40VC9 6WG /B is a gas pressure switch rated for use with positive pressure applications involving specified compatible gases (natural gas, biogas, air, and flue gases). This diaphragm-operated device features a micro switch mechanism that is constructed without silicone components per manufacturer specifications and is intended for installation in boiler systems or other equipment within the specified operating parameters.

Key features include:

• Adjustable switching point via setting dial or available factory-set options
• Pressure range from 3 to 500 mbar (1.2 to 144"WC)
• Pneumatic connections: internal (1x or 2x Rp 1/4) and external (Rp 1/8 or Rp 1/4)
• Electrical contacts: silver (24–250V AC, 0.05–5A) and gold (5–250V AC, 0.01–5A) for CE versions; gold (max 30V AC, 0.05A) and silver (30–240V AC, up to 5A) for UL versions
• Four-pin plug-and-socket electrical connection
• Certified by EU authorities; listed by UL; approved by FM and AGA