Weil McLain 510-312-150 Operating Limit Refrigerant The Functional Devices RIBXGF is

The Functional Devices RIBXGF is rated for a maximum sense voltage of 600 Vac

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optimized for 2-3 ton system capacities

it is the standard replacement across those brands

This unit is rated for up to 600V and functions across a wide temperature range from -40°F to 150°F

Weil McLain 510-312-150 Operating Limit Refrigerant The Functional Devices RIBXGF isThe Weil McLain 510 312 150 Operating Limit is a professional grade combination operating limit and fixed high limit temperature control engineered for hydronic heating systems. This dual function component is a primary safety and control interface for Weil McLain EG, EGH, and PFG boilers, specifically optimized for sizes 85 and 95. It features a versatile operating temperature range of 140F to 240F and a factory set fixed high limit at 240F to