Square D 8911DPSG43V09 Definite Purpose Contactor 40A 3P

Product Description

The SQUARE D 8911DPSG43V09 is a 3-pole definite purpose contactor rated for 40 amps of inductive load. It is designed for motor control and load-switching applications in HVAC, refrigeration, and industrial power circuits. The coil operates at 208 to 240 volts AC at 60 Hz and 220 volts AC at 50 Hz, making it suitable for both standard North American and select international supply voltages. The unit ships in a NEMA 1 enclosed enclosure, providing basic protection against contact with live parts. Licensed electricians and HVAC controls technicians are the typical installers for this class of contactor.

This contactor is rated for single-phase and three-phase motor loads. Rated horsepower values include 3 HP at 115 volts AC, 7.5 HP at 230 volts AC single-phase, and 10 HP at 230 volts AC, 20 HP at 460 volts AC, and 25 HP at 575 volts AC three-phase. These ratings make it a practical choice for compressor contactors, air handler motor starters, and similar definite purpose switching applications in commercial and light industrial settings.

Key Features

• 3-pole configuration for three-phase and single-phase motor control circuits
• 40-amp inductive load rating suitable for compressor and motor starter applications
• Coil rated at 208 to 240 volts AC at 60 Hz and 220 volts AC at 50 Hz
• NEMA 1 enclosed enclosure for basic protection against incidental contact
• Three-phase horsepower ratings up to 25 HP at 575 volts AC
• Meets NEMA 1 standards for enclosed motor control equipment

Compatibility

Designed as an OEM-style definite purpose contactor replacement for 3-pole, 40-amp inductive load applications in HVAC, refrigeration, and light industrial motor control systems operating on 208 to 240 volt AC supply circuits.

Installation Notes

Installation should be performed by a licensed electrician or qualified HVAC controls technician in accordance with NEC Article 430 for motor circuit protection and control. Disconnect and lock out all power to the panel or equipment before removing the existing contactor or making any wiring connections. Verify coil voltage matches the control circuit supply before energizing. Do not exceed the published inductive load amperage or horsepower ratings for the connected load.