Asco P149A111X1X01F0 Series 149 On/Off Motorized Actuator 120V/60Hz 1/2" NPT

The Asco P149A111X1X01F0 is a Series 149 motorized on/off actuator engineered exclusively for use with the ASCO Series 148 safety shut-off valve in fuel oil burner applications. Operating at 120V/60Hz, this actuator delivers fast, reliable open/close control with a fail-safe return to the closed position in less than one second, making it a critical combustion safety component in boilers, furnaces, and fuel oil systems.

The Series 149 actuator features a durable aluminum body and pairs with the Series 148 valve to form a compact motorized safety shutoff valve assembly. The 1/2" NPT conduit connection accommodates standard electrical wiring, and the unit supports on-site configuration for 1/2" or 3/4" NPT/Rp pipe connections as well as 2/2 or 3/2 valve function via optional adapters and plugs.

Key Features:

• On/off motorized actuation with fast-open response
• Fail-safe closure in under 1 second — no power required to close
• Operating voltage: 120V AC / 60Hz (also accepts 110V/50Hz)
• 1/2" NPT electrical conduit connection
• Broad ambient temperature range: -40°F to +150°F (-40°C to +66°C)
• High flow and high pressure design for demanding fuel oil service
• Compatible with fuel oils including up to 100% Biodiesel (B100)
• Optional Proof-of-Closure (POC) switch and auxiliary position switches available
• Visual open/closed position indication
• Multi-position mounting — installs in any orientation
• Global safety certifications: UL, FM, and CSA
• Designed exclusively for use with ASCO Series 148 valve body

The P149A111X1X01F0 is suitable for fuel oil recirculation as well as simple safety shutoff duties. Its robust aluminum construction, wide temperature tolerance, and proven motorized technology make it a dependable choice for OEMs, mechanical contractors, and service technicians working on combustion heating equipment.