Description
The Ashcroft B424B-150WC is a heavy-duty, general-purpose pressure switch engineered for precise pressure control, alarm, and safety shutdown in low-pressure industrial and commercial applications. Part of Ashcroft's industry-trusted B4 Series, this switch features a 0–150 inches of water column (W.C.) pressure range — making it the ideal choice for HVAC systems, air handling equipment, gas pressure monitoring, and other low-differential pressure applications where precise, repeatable switching is critical.
Key Features
- Pressure Range: 0–150 inches W.C. (approx. 0–5.4 PSI / 0–374 mbar)
- Switch Type: SPDT (Single Pole, Double Throw) — snap-action
- Electrical Rating: 15A – 125/250/480 VAC | 1/2A – 125 VDC | 1/4A – 250 VDC | 6A, 30 VDC
- Deadband: Adjustable (typical range: 10–40% of span for IW ranges)
- Process Connection: 1/4" NPT (standard)
- Enclosure: Watertight die-cast aluminum housing
- Enclosure Rating: NEMA 3, 4, 4X, 13 | IP66
- Process Temperature Range: 0°F to 150°F (-17°C to 65°C) (Buna-N diaphragm)
- Ambient Temperature Range: -20°F to 150°F (-29°C to 65°C)
- UL Listing: UL Limit Control listed to 150 in. H₂O
- Conduit Connection: 1/2" NPT electrical conduit (standard)
