Belimo B311B+LRB24-SR Valve Assembly 318973-401 The MARS 61480 is a

The MARS 61480 is a heavy-duty 3-pole definite purpose contactor engineered for industrial and commercial HVACR applications requiring high-amperage switching

5 MFD motor capacitor to verify the unit meets factory-calibrated efficiency benchmarks upon startup

For 24VAC applications

Only if you are performing a remote mounting installation

The 450291-001 is the official updated version provided by Sporlan for the 450132-001 part number

Belimo B311B+LRB24-SR Valve Assembly 318973-401 The MARS 61480 is aThe Belimo B311B+LRB24 SR is a precision engineered 3 way characterized control valve (CCV) assembly designed for modulating control of hot or chilled water in HVAC systems. Featuring a 1 2" NPT connection and a flow coefficient of Cv 1. 9, this valve utilizes a chrome plated brass ball and stem to ensure reliable performance in closed loop hydronic circuits. It is paired with the LRB24 SR non spring return actuator, which delivers 45 in lb of torque