Resideo RA889A1001 Switching Relay 319852-301 What is the frame size

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Resideo RA889A1001 Switching Relay 319852-301 What is the frame sizeThe Resideo RA889A1001 Switching Relay is a heavy duty solution for intermediate switching of line and low voltage devices in hydronic heating systems. Engineered for 120Vac primary voltage, this relay features a Single Pole Double Throw (SPDT) configuration paired with a PowerPile rated low voltage SPST relay, making it ideal for converting millivolt systems to modern 24V control. The integrated transformer secondary rating of 24Vac provides 9 VA for