Littelfuse Expands Its Solid-State Switching Portfolio with New Solid-State Contactors
Littelfuse, Inc. has expanded its solid-state switching portfolio with the introduction of the SCD and SCP Series solid-state contactors. Announced on September 17, 2026, these new contactors are engineered for reliable control in single- and three-phase heating and motor applications, addressing the increasing demand for efficient power-control solutions driven by the global shift toward electrification.
These solid-state contactors are designed to enhance system performance for manufacturers by reducing maintenance requirements and unplanned downtime. A key differentiator is their reliance on solid-state operation, which eliminates mechanical wear common in traditional switching solutions. Furthermore, they incorporate advanced zero-cross switching technology, which Littelfuse states minimizes electrical noise and voltage transients, thereby supporting long-term reliability, particularly in demanding industrial environments.
The SCD and SCP Series feature an integrated design aimed at simplifying installation, ensuring compliance with global safety standards, and ultimately lowering the total cost of ownership. Design characteristics such as integrated heatsinking and flexible mounting options (DIN-rail and panel-mount) are highlighted by Littelfuse as crucial for machine builders to manage panel-space constraints, optimize thermal performance, and ensure long-term durability.
The expanded offering includes eight configurations plus additional accessories, covering one-pole, two-pole, and three-pole switching options, as well as a panel-mount reverser. This broad range, including high-endurance DIN-rail solutions like the SCD1-NR and essential one-pole switching options such as the SCD1-CE and SCP1-CE, allows for versatile application across various industrial settings.
Specifications
| Series | Switching Configuration | Mounting Options | Configurations Offered |
|---|---|---|---|
| SCD and SCP Series | One-pole, two-pole, and three-pole switching; reverser configuration | DIN-rail mount and panel mount | Eight configurations plus added accessories |
Key Features
- The SCD and SCP Series are solid-state contactors designed for single- and three-phase heating and motor applications.
- The expanded offering includes eight configurations plus added accessories.
- They eliminate mechanical wear, unlike traditional mechanical switching solutions.
- Utilize advanced zero-cross switching technology to minimize electrical noise and voltage transients.
- Integrated design simplifies installation, supports compliance with global safety standards, and helps lower total cost of ownership.
- Features integrated heatsinking and flexible mounting options, including DIN-rail and panel-mount versions.
- Available in one-pole, two-pole, and three-pole switching configurations.
- Includes a panel-mount reverser configuration (SCP3-CC…R).
- Specific configurations include a high-endurance DIN-rail solution (SCD1-NR) and essential DIN-rail/panel-mount options (SCD1-CE, SCP1-CE).
Applications
- Industrial ovens, including reflow and wave soldering, drying, curing, and tempering equipment.
- Environmental test chambers.
- Industrial packaging equipment, such as shrink tunnels, filling machines, and sealing machines.
- Industrial plastic-processing equipment, including injection molding, thermoforming, and extrusion.
- General single- and three-phase heating and motor-control applications.
Avaliablity
Littelfuse’s expanded SCD and SCP Series solid-state contactors are available as part of its industrial solid-state switching portfolio, with options for single-, two-, and three-pole switching in DIN-rail and panel-mount configurations. The available models include the SCD1-NR, SCD1-CE, SCP1-CE, SCD2-CE, SCP2-CE, SCD3-CC, SCP3-CC and SCP3-CC Series, providing solutions for reliable control of single- and three-phase heating and motor applications.
