Sensata Crydom offers one of the industry's most comprehensive ranges of Solid State Relays (SSRs), available in multiple mounting styles and covering a wide spectrum of voltage and current ratings. Designed for reliability and performance, Crydom SSRs are a proven solution for modern power switching applications where long life, fast response, and robustness are critical.
A Solid State Relay (SSR) is an electronic switching device that controls power, AC or DC, to a load circuit while providing complete electrical isolation between the control and load sides of an application. As a result, SSRs have become a compelling alternative to traditional Electromechanical Relays (EMRs) and legacy switching technologies such as Mercury Displacement Relays (MDRs), especially in applications where durability, efficiency, and precision are essential.
Why Choose Solid State Relays?
Solid State Relays can be used to control almost any type of load, making them ideal for demanding heating, lighting, motion, and power control applications. Compared with electromechanical solutions, SSRs deliver a range of significant benefits, including:
These advantages make SSRs the preferred choice for designers looking to increase system reliability while reducing maintenance and downtime.
Sensata Crydom 1‑DC Series - High‑Performance DC Output SSRs
The 1‑DC Series from Sensata Crydom is a family of rugged, panel‑mount DC Solid State Relays designed specifically for reliable and fast switching of DC loads. Featuring MOSFET‑based outputs with very low on‑state resistance, these devices minimise power losses while delivering consistent, high‑performance switching.
Each relay integrates its control and trigger circuitry into a compact, easy‑to‑use package, making the 1‑DC Series just as simple to implement as a traditional mechanical relay without the associated reliability concerns.
1-DC Series Block Diagram
Flexible Ratings for a Wide Range of Applications
Thanks to their high PWM capability and broad selection of voltage and current options, the 1‑DC Series is suitable for a diverse range of DC switching requirements. The series includes 14 models, with ratings covering:
This wide selection of ratings allows designers to confidently select the optimal relay for their application without compromise.
How operating conditions of Solid State Relays impact output rating
Efficient, Fast and Easy to Drive
The 1‑DC Series SSRs feature a wide control voltage range of 3.5 to 32 V, providing maximum design flexibility and compatibility with common logic‑level control signals. With a maximum input current of just 15 mA, these relays are also extremely energy‑efficient. Fast response is assured, with turn‑on and turn‑off times of just 100 µs (maximum), making the devices ideal for applications requiring rapid, precise switching.
Performing On/Off test with a Solid State Relay
Built for Reliability in Harsh Environments
Designed for demanding industrial environments, the 1‑DC Series operates across a wide temperature range from -40°C to +100°C. The SSRs are housed in flame‑retardant UL94 V‑0 materials and are UL recognised components, as well as CE compliant to EN60950‑1.
When correctly installed, Solid State Relays can outperform mechanical relays by a factor of more than 10× in terms of reliability. The 1‑DC Series demonstrates this with an impressive MTBF exceeding 21 million hours at 40°C ambient, and more than 11 million hours at 60°C, ensuring long‑term, maintenance‑free operation.
How to correctly install a Panel Mount Solid State Relay
Sensata Crydom Solid State Relays are suitable for a wide range of applications including HVAC, Industrial Automation, Medical, Material Handling Equipment, Heaters, Professional Kitchen Equipment, Communications, Power Supplies, Data Centres and many more besides.
Anglia is offering customers FREE samples of the 1-DC series of Solid State Relays (SSR) from Sensata Technologies, please fill in the form below to register your interest now.
Free samples are subject to availability.
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