Thanks to their ability to handle higher current than switches with contact blocks, these switches are often found in applications from large motors to warehouse lighting systems. The cam pushes contacts more tightly together than contact blocks, allowing more electricity to flow through. However, they aren’t made to be rewired like switches with contact blocks are. These switches require you to grip and twist a lever to turn circuits on or off, so they won’t accidentally actuate if you bump into them. Mount them in a standard panel cutout diameter.

Choose a switch based on the complexity of your application. Changeover switches have three positions. They work well if you need to toggle between a primary power source and a backup generator. Selector switches have up to six positions. They give you the most control, allowing you to turn on or off multiple devices or different parts of your machine.

Legend plates (sold separately) give you a way to change your switch’s message.

Keep your hands free for other tasks by triggering switches with your foot.

Back-pivot switches actuate with a tap of the toe.

Control multiple devices with one switch. Turn the shaft to change switch positions. Each position closes a set of contacts per circuit, so you can select between multiple devices on one or more circuits.

Mount these monitors to 35 mm DIN rail. They protect electric motors from phase loss, phase reversal, overvoltage, undervoltage, and voltage imbalance. Also known as voltage-monitoring relays, they cut power to a motor when a fault occurs.

A single, momentary input voltage switches these relays and latches them in position, so they don't require a constant input voltage to stay switched. A second momentary voltage will release the latch.

Relay sockets (sold separately) mount to 35 mm DIN rail (also known as DIN 3 rail) for fast installation.

Often used to regulate the speed of AC fans or keep a heater at a set temperature, these relays connect directly to sensors to calculate and adjust output power. This allows you to use an analog input without converting it to a digital signal to control output power. They are solid state and have no moving parts, so they require less maintenance and last longer, are quieter, and switch faster than mechanical relays. IP20 rated, they have recessed terminals that prevent fingers and other objects from touching live circuits. An integrated heat sink disperses heat to increase the relay’s current rating. The LED indicator shows input voltage loss and internal relay faults, so you can easily check that your system is operating properly.

Mount them on 35 mm DIN rail (also known as DIN 3 rail) for fast installation. They also mount to flat surfaces.

All relays have phase-angle switching to accurately control all types of loads. This mode signals at non-zero voltage, which can produce electrical noise.

Single-phase relays can be set to switch every 1, 4, or 16 cycles. When used with infrared heaters, they have an option to switch at the half cycle and again at the full cycle. When switching at 16 cycles or at the half cycle, these relays have a soft-start option to increase the output slower in high-inrush current applications.

Relays with a potentiometer input can connect to an external potentiometer for manual control.

Prevent changes in frequency from damaging sensitive equipment. Often used with motors, fluorescent lighting, and controllers, these relays cut power to your device if the frequency falls outside the set range. Switches on the front of these relays let you set your trip frequency and time. You can see that they're wired correctly and when they're actuated based on the LED indicators. Rated IP20, these relays have recessed terminals that keep fingers and other objects from touching live circuits.

DIN-rail mount relays snap onto 35 mm DIN rail (also known as DIN 3 rail) for fast installation.

Safeguard your equipment against overheating, wear, and malfunction from a spike or dip in voltage. These relays continuously monitor your AC or DC power supply and trip when the voltage is outside a set range. Rated IP20, these relays have recessed terminals that keep fingers and other objects from touching live circuits. Mount them on a 35 mm DIN rail (also known as DIN 3 rail) for fast installation.

Relays have knobs right on the front where you can set your trip voltage. You can see that they're wired correctly and when they're actuated based on the LED indicators. If you want to mount these relays to a surface instead of DIN rail, they have mounting holes.

Relays with IO link can be programmed, monitored and reset remotely by connecting them to a programmable logic controller (PLC), human-machine interface (HMI), or computer. If you want to program them locally, they have a keypad.

Relays with spring-clamp terminals connect and disconnect to wire without screws. Because there’s no screw, these connections are less likely to loosen over time, even in high-vibration environments.

Protect electrical equipment from overcurrent and undercurrent damage—these relays continuously monitor current flow. When current is outside a set range, they trip and cut power to prevent overheating, fire hazards, and stalling. Rated IP20, these relays have recessed terminals that keep fingers and other objects from touching live circuits. Mount them on a 35 mm DIN rail (also known as DIN 3 rail) for fast installation.

Relays with spring-clamp terminals connect and disconnect to wire without screws. Because there’s no screw, these connections are less likely to loosen over time, even in high-vibration environments.

Relays with IO link can be programmed, monitored, and reset remotely by connecting them to a programmable logic controller (PLC), human-machine interface (HMI), or computer. If you want to program them locally, they have a keypad.

Relays with knob adjustments have knobs right on the front where you can set your trip current. You can see that they're wired correctly and when they're actuated based on the LED indicators.