McMaster-Carr logo
    Filter by
    System of Measurement
    Number of Circuits Controlled
    Switching Current
    Industrial Info Snippet
    Mounting Location
    Switch Designation
    Industrial Info Compare
    Operation Type
    Number of Terminals
    Switching Voltage
    Industrial Info Snippet
    Relay Type
    Timing Adjustment Style
    Switch Starting Position
    Industrial Info Compare
    Electrical Connection
    Switch Action
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Mechanical Life Cycles
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    DFARS Specialty Metals
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    6 Products

    DIN-Rail Mount Interface Relays

    Isolate input and output circuits to prevent damage from voltage spikes, reduce signal interference, and amplify signal. These relays interface between your controller and components—they receive a signal from the controller to switch power on or off to the components. All have an LED indicator that shows you if your switch is actuated, so you know it’s connected and wired correctly. Use them to communicate signals to devices like motors or sensors. Mount them on 35 mm DIN rail (also known as DIN 3 rail).
    1 Circuit Controlled with 1 Off or 1 On—SPDT
    Image of Product. Front orientation. Contains Annotated. Interface Relays. DIN-Rail Mount Interface Relays, 1 Circuit Controlled, With Screw Terminals.
    Image of Product. Front orientation. Contains Annotated. Interface Relays. DIN-Rail Mount Interface Relays, 1 Circuit Controlled, With Spring-Clamp Terminals.

    With Screw

    Terminals

    With

    Spring-Clamp

    Terminals

    With Spring-Clamp Terminals—Relays with spring-clamp terminals connect and disconnect to wires without needing to turn screws. Because there is no screw, these connections have less risk of loosening over time than screw terminals, even when there is vibration.
    Interface Relays
    Replacement
    Relays
    No. of
    Terminals
    Input Voltage
    Control Current,
    mA
    Switching Current
    @ Voltage
    Max. Switching
    Voltage, V AC
    Ht.
    Wd.
    Dp.
    Features
    Each
    Each
    With Screw Terminals
    512V AC, 12V DC166 amp @ 240V AC2503.5"0.2"3"LED Indicator8262T140000008262T1500000
     
    With Spring-Clamp Terminals
    512V AC, 12V DC166 amp @ 240V AC2503.7"0.2"3"LED Indicator4144N15000008262T150000
     

    Dual-Channel DIN-Rail Mount Multifunction Timer Relays

    Image of Product. Front orientation. ZoomedIn view. Contains Border. Timer Relays. Dual-Channel DIN-Rail Mount Multifunction Timer Relays.
    Image of Product. Front orientation. Contains Annotated. Timer Relays. Dual-Channel DIN-Rail Mount Multifunction Timer Relays.
    Control two steps of an electrical process from a single relay—with two fully independent channels and 30 different functions, these relays give you a wide range of possibilities. Each channel has its own output, so you can run two different functions (one per circuit) at the same time. Mount them to 35 mm DIN rails (also known as DIN 3 rail) and connect them to lighting systems, conveyors, electric motors, and other systems. These relays are UL Listed, C-UL Listed, and CE Marked, meaning they meet U.S. and international safety standards.
    View times, function names, and on/off status for both channels at once using the digital display. You can program these relays with a joystick on the face, which is easier to use than the rotary dials on traditional relays. You can also program them using an Android phone with NFC (near field communication) capability, which is commonly used for mobile payment. Once you select the functions you need, hold the phone against the relay to program.
    Connect switches to inputs on these relays to trigger, pause, and reset functions. Turning on a switch connected to the pause input stops functions until the switch is turned off. A switch connected to the reset input will start functions from the beginning. If the relay is actively receiving a signal, the function will restart right away. If there is no signal, the function will stop and reset, so it starts from the beginning the next time it’s triggered. You can use switches to pause or reset both channels at once, or for one channel only.
    Although these relays have 30 different functions, they all fall into 10 categories. Within these categories, you can select different functions to allow you to add a switch, program a delay, or change how the relay responds to a trigger (turning on or off, pausing, or resetting).
    Delayed Start (Delay on Make) Timer—These functions allow you to set how long it takes for the relay to turn on after input voltage is applied. For example, a drill starts pumping lubricant immediately, but it does not start rotating until the set time has elapsed.
    Delayed Switch Off (Delay on Break) Timer—These functions use a switch instead of input voltage. When the switch is turned off, the relay remains on for a programmed amount of time before turning off. For example, a projector’s light is turned off with a switch, but its cooling fan continues to run for a set time.
    Delayed Switch-On with Delayed Switch-Off Timer—This function uses a switch instead of an input voltage. It allows you to set how long it takes the relay to turn on after a switch is turned on, and how long it will stay on after the switch is turned off. For example, a furnace turns on, but the fan doesn’t start pushing air through the vents until it has been heated. When the furnace turns off, the fan keeps blowing to circulate all the hot air.
    Interval Timer—These functions use input voltage to turn on the relay for a programmed amount of time. For example, when a part moving down a conveyor reaches a certain location, a cleaning spray comes on for a set amount of time.
    Switch on (Single Shot) Timer—These functions require a switch to activate the relay, which stays on for the programmed amount of time. For example, lights in a storage room are turned on with a switch and stay on for a set time before turning off.
    Repeat-Cycle Timer—When input voltage is applied, the relay turns on for a duration, then off for the same duration. They alternate between the two until input voltage is removed. For example, a flashing light stays on and off for equal periods of time.
    Asymmetrical-Repeat-Cycle Timer—These functions start with an on-cycle and then have an off-cycle, but these cycles have different durations. The cycles repeat until input voltage is removed. For example, a sprinkler system sprays in short bursts followed by longer rest periods, on and off until input voltage is removed.
    Manual-Switch-Control Timer—Use these functions to turn the relay on and off with a switch.
    Fixed On/Off Timer—The on function keeps the relay on whenever input voltage is applied; it will only turn off if the voltage is removed. The off function keeps the relay in an off state, even if input voltage is applied.
    Switch-On Asymmetrical Repeat Cycle Timer—These functions require a switch to activate the timing function. The input voltage is applied the whole time, and when you turn the switch on, the relay begins with an on-cycle followed by an off-cycle. These cycles have different durations, and they repeat until you turn the switch off. They could be used to turn on a motor or other system for a short period and then turn it off for a longer rest period, repeating that pattern until the switch is turned off.
    Timing
    Range
    No. of
    Terminals
    Input Voltage
    Control Current,
    mA
    Timer Relay Function
    No.
    of
    Overall
    Switching Current
    @ Voltage
    Max. Switching
    Voltage, V AC
    Ht.
    Wd.
    Dp.
    Features
    Each
    2 Circuits Controlled with 2 Off and 2 On—DPDT
    12120V AC, 240V AC, 110V DC, 240V DC16Manual Switch Control
    Fixed On/Off
    Switch on (Single Shot)
    Delayed Start (Delay on Make)
    Delayed Switch Off (Delay on Break)
    Delayed Switch-On with Delayed Switch-Off
    Interval
    Repeat Cycle
    Asymmetrical Repeat Cycle
    Switch-On Asymmetrical Repeat Cycle    		300.1 sec. to 9,999 hr.16 amp @ 240V AC2403.4"1.4"2.2"2 Individually Programmable Timers, LCD Screen7105N120000000
     

    DIN-Rail Mount Multifunction Interface Timer Relays

    Image of Product. Front orientation. Contains Annotated. Timer Relays. DIN-Rail Mount Multifunction Interface Timer Relays.
    Protect components from voltage spikes while amplifying the relay’s signal and reducing interference for reliable transmission—these relays interface between your controller and system components to isolate the input and output circuits. They are often used for switching applications, such as small motors and pilot lights. These relays provide a variety of timing functions in one relay. The included relay socket mounts on 35 mm DIN rail (also known as DIN 3 rail) for fast installation. Relays disconnect from the socket for easy replacement.
    Timer Relays
    Replacement
    Relays
    Timing
    Range
    No. of
    Terminals
    Input Voltage
    Control Current,
    mA
    Timer Relay Function
    No.
    of
    Overall
    Switching Current
    @ Voltage
    Max. Switching
    Voltage, V AC
    Ht.
    Wd.
    Dp.
    Each
    Each
    1 Circuit Controlled with 1 Off or 1 On—SPDT
    524V AC, 24V DC16Delayed Start (Delay on Make)
    Interval
    Repeat Cycle    		40.1 sec. to 6 hr.6 amp @ 240V AC2403 1/2"0.2"2.8"4799T110000008262T2100000
     
    back to top