the 20403301 Mid Panel is the current manufacturer-approved OEM replacement for the discontinued 20403302

Key Benefits Universal Mounting: Fits standard 1/2-inch shafts and accommodates 3/8-inch round or square shafts with optional hardware

eliminating the need for external secondary relays

Can I use a ZP charge to replace a standard Z charge

the Erie 680-243-5 is compatible with both low voltage and line voltage applications

Schneider Electric (Barber Colman) M573-2520 Actuator R-410A the 20403301 Mid Panel isThe Schneider Electric M573 2520 is a heavy duty pneumatic damper actuator designed for the precise positioning of air dampers in commercial HVAC control systems. This post mounted actuator features a 3 inch stroke and a robust glass filled nylon housing with a rolling neoprene diaphragm for reliable performance in demanding environments. Operable within a 3 to 12 psig spring range, it provides either proportional or two position control, making it