S500-A50, S500-A60, and S500-A70
Voltage Control Over-Energizer Modules
Trombetta’s S500-A50, A60 and A70 are solid-state electronic controls for single or dual-winding solenoid applications. They are designed to enhance solenoid performance by increasing force capability and reducing operating temperature. These modules accept your 2-wire or 3-wire switched input (12 or 24V) and apply this voltage to the coil or coils. After actuation, the module reduces the output voltage to 13% to 16% of the input voltage for continuous duty. This reduced voltage level is applied to the coils until the control signal is removed. These cost-effective models do not require an additional contactor for 24V applications.
Electronic controls for solenoids regulate the magnitude of electrical drive applied to the coil during the pull-in and/or hold operation of the solenoid to optimize performance of the solenoid. Some applications require a high force capacity in a relatively small package. These solid-state modules are designed to work properly with either a two-section coil or a one-section coil, in the following manner: When power is applied to the module it applies full voltage to the solenoid coil or coils. After the actuation time the module reduces the output voltage to the solenoid to 13% - 16% of the input voltage for continuous duty. This reduced voltage level is applied to the coil or coils until the power is removed. The flexibility to operate with either two-section or one-section coils allows the module to be used as a replacement for older relay style modules.
Trombetta builds three models, which are differentiated simply by the connection type. The S500-A50 has terminal screw connectors and a factory installed jumper (+ aux jumped to + hot). The S500-A60 has terminal screw connectors with no jumper. The S500-A70 has the factory installed jumper along with faston connectors.
Each model may be used in 12 volt and 24 volt applications. In a 12 volt application, the max load current is 80 and the max power load is 1000 watts. In a 24 volt application, the max load current is 40 and the max power load is 1000 watts. Each model handles an 8.5-32 volt input range, and has an actuation time of 0.5 seconds; 6 cycles per minute for one minute maximum cycle rate; reverse polarity protection if properly fused; stainless steel terminal screws and tin plated brass terminals maintain contact integrity in harsh environments.
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