The Square D Disconnect Type 3R D323NRB is a 100 Amp, 240 Volt, 3 Pole Fusible designed for electrical disconnection in industrial settings. With tripping characteristics of Type D, this product provides reliable protection for circuits by automatically disconnecting in case of overloads or faults. The Square D brand is known for its quality and durability, making this disconnect a safe and efficient choice for ensuring electrical safety in various applications.