243-0010 | Balance-Retard Relay, Pneumatic, Heavy Duty, Gradual-Acting, DA and RA | Siemens

This 243 Heavy-Duty Balance-Retard Relay is gradual acting, pneumatic devices designed to provide special functions such as balancing, signal retard, hesitation, and pressure limiting. It has an internal relief valve for fail-safe operation, an adjustable retard setting and an operational ambient temperature range of 40 to 120 degrees Fahrenheit.