POPULAR MODELS

Model Number	Description
A6-151221	Pressure switch, set point range 0.5-1 ±0.3 psi (0.03-0.07 ±0.02 bar), factory set at 1 psi (0.07 bar), preset is field adjustable within the range.
A6-251221	Pressure switch, set point range 1.1-3 ±0.5 psi (0.08-0.21 ±0.03 bar), factory set at 2 psi (0.14 bar), preset is field adjustable within the range.
A6-351221	Pressure switch, set point range 3.1-7 ±1 psi (0.21-0.48 ±0.07 bar), factory set at 4 psi (0.28 bar), preset is field adjustable within the range.
A6-451221	Pressure switch, set point range 8-13 ±2 psi (0.55-0.90 ±0.18 bar), factory set at 10 psi (0.69 bar), preset is field adjustable within the range.
A6-551221	Pressure switch, set point range 14-24 ±3 psi (0.97-1.65 ±0.21 bar), factory set at 15 psi (1.03 bar), preset is field adjustable within the range.
A6-651221	Pressure switch, set point range 25-50 ±5 psi (1.72-3.45 ±0.34 bar), factory set at 35 psi (2.41 bar), preset is field adjustable within the range.
A6-751221	Pressure switch, set point range 51-90 ±7 psi (3.52-6.21 ±0.48 bar), factory set at 80 psi (5.52 bar), preset is field adjustable within the range.
A6-851221	Pressure switch, set point range 91-150 ±10 psi (6.27-10.34 ±0.69 bar), factory set at 100 psi (6.89 bar), preset is field adjustable within the range.

ACCESSORIES

Model Number	Description
A-439	Weatherproof IP65 cover.
A-440	Weatherproof IP65 cover with fly-wire holes.