Crydom introduces the PMP Series of Proportional Controllers, a multi-function complement for NOVA22 Solid State Relays. The new PMP Series are panel mounted multi-function proportional control SSRs in a compact 22.5mm housing ideal for applications that require control of the amount of power delivered to a resistive load. These solid state relays can control the load power in proportion to an analog control input, which can be a DC voltage (0-5 or 0-10 volts) or a DC current (4-20 mA); as this control input varies from 0 to 100% so does the output of the SSR. The use of an auxiliary DC power supply allows to have good precision and low noise sensitivity over the full control voltage range.  Learn more at www.crydom.com.