Crydom’s NOVA 22 DRML1 Reliably Monitors Circuit Issues

Ensuring an application runs smoothly and safety is a key concern of all designers and engineers, and they require dependable solutions to monitor for overcurrent conditions and other circuitry issues. Crydom offers a dynamic solution in the form of the NOVA 22 DRML1, a solution specifically designed for NOVA22 Solid State Relays that plugs on top of these SSRs to monitor failure in heating elements. Let’s explore DRML1 and its performance specifications to find out exactly how you can leverage this load monitoring module.

How does DRML1 monitor operation and detect failure?

DRML1 will activate an alarm as soon as it detects undercurrents in the heating circuit that are below -12.5% of the nominal current. In addition, it also detects common occurrences such as overcurrent conditions above 12.5% of the nominal current, blown fuses, damaged and interrupted SSR as well as SSR in half-wave operation. When any of these failures occur, a multicolored LED will light up as indication.

DRML1 offers a dynamic performance.

DRML1, which has an operating temperature of -25°C to +70°C, is capable of monitoring up to 8 heating elements. It has a sensing current of up to 50Amps and leverages a 150 mA minimum current for a single load. Because of its versatility and ability to monitor for various issues, DRML1 is an optimal solution for plastic parts production in injection molding machines, thermoforming machines and rubber parts production.

The most flexible load monitoring module on the market.

There are a few features that set DRML1 apart from its competitors and give it a clear advantage over other options on the market. First, DRML1 allows users to select a maximum current value of either 20 or 50 Amps. It also operates with a minimum partial load detectable value of 150 mA and integrates an adjustable alarm response delay of 0.1, 1 or 5 sec that you can select via a parameter selector switch.

When you need to integrate a device to detect common issues in heating circuit systems, the high-performance DRML1 is an excellent solution. Integrate Crydom’s load monitoring module available at into your design to take advantage of its benefits for your system.

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