About Timer Relays
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Current-Monitoring Relays
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.
Trip Current | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of Terminals | Input Voltage  | Min. | Max. | Trip Time, sec. | Reset Type | Switching Current @ Voltage | Max. Switching Voltage | Adjustment Style | Ht. | Wd. | Dp. | Display Type | Each | |
Screw Terminals with IO Link | ||||||||||||||
1 Off (Normally Open) or 1 On (Normally Closed)—SPDT | ||||||||||||||
| 9 | 24V DC | 0.05A | 10A | 0-999 | Automatic | 1 A @ 24 V DC 3 A @ 240 V AC | 400V AC 250V DC | External Controller, Keypad | 3.6" | 0.9" | 3.4" | LCD | 0000000 | 0000000 |
Spring-Clamp Terminals with IO Link | ||||||||||||||
1 Off (Normally Open) or 1 On (Normally Closed)—SPDT | ||||||||||||||
| 9 | 24V DC | 0.05A | 10A | 0-999 | Automatic | 1 A @ 24 V DC 3 A @ 240 V AC | 400V AC 250V DC | External Controller, Keypad | 3.8" | 0.9" | 3.4" | LCD | 0000000 | 000000 |
Voltage-Monitoring Relays
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 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.
Trip Voltage | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of Terminals | Input Voltage | Min. | Max. | Trip Time, sec. | Reset Type | Switching Current @ Voltage | Max. Switching Voltage | Adjustment Style | Ht. | Wd. | Dp. | Display Type | Features | Each | |
1 Circuit Controlled with 1 Off (Normally Open) or 1 On (Normally Closed)—SPDT | |||||||||||||||
With Screw Terminals | |||||||||||||||
| 9 | 24V DC | 10V AC/DC | 600V AC/DC | 0-999 | Automatic | 3 A @ 240 V AC 1 A @ 24 V DC | 400V AC 250V DC | Keypad, External Controller | 3.6" | 0.9" | 3.6" | LCD | Remote Reset | 00000000 | 0000000 |
With Spring-Clamp Terminals | |||||||||||||||
| 9 | 24V DC | 10V AC/DC | 600V AC/DC | 0-999 | Automatic | 3 A @ 240 V AC 1 A @ 24 V DC | 400V AC 250V DC | Keypad, External Controller | 3.8" | 0.9" | 3.6" | LCD | Remote Reset | 00000000 | 000000 |
Ground-Fault Monitoring Relays
Detect and mitigate ground faults to prevent harm to equipment, circuits, and people. These relays monitor the differential between incoming and outgoing current, also known as residual current. When the balance is off, they trip and cut power to the circuit. These relays are highly sensitive, so you can trust them to de-energize faulty circuits before a minor issue becomes a major one. Rated IP20, they have recessed terminals that keep fingers and other objects from touching live circuits. Mount them on 35 mm DIN rail (also known as DIN 3 rail) for fast installation.
These relays require a current-indicating ring (sold separately) to operate. Choose a ring that is large enough for your lines to pass through. Feed the lines of the circuit through the center of the ring and connect the indicating ring output to the relay.
Relays with spring-clamp terminals connect and disconnect to wire without screws. Because they don’t have screws, there’s less of a risk that they will loosen over time, even when they’re under vibration.
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.
Trip Current | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of Terminals | Input Voltage | Min. | Max. | Trip Time, sec. | Switching Current @ Voltage | Max. Switching Voltage | Adjustment Style | Ht. | Wd. | Dp. | Features | Each | |
Screw Terminals with IO Link | |||||||||||||
2 Off (Normally Open) or 2 On (Normally Closed)—DPDT | |||||||||||||
| 12 | 24V DC | 0.03A | 40A | 0-999 | 3 A @ 240 V AC 1 A @ 24 V DC | 400V AC 250V DC | Keypad, External Controller | 4" | 0.9" | 3.6" | Remote Reset | 00000000 | 0000000 |
Spring-Clamp Terminals with IO Link | |||||||||||||
2 Off (Normally Open) or 2 On (Normally Closed)—DPDT | |||||||||||||
| 12 | 24V DC | 0.03A | 40A | 0-999 | 3 A @ 240 V AC 1 A @ 24 V DC | 400V AC 250V DC | Keypad, External Controller | 4.1" | 0.9" | 3.6" | Remote Reset | 00000000 | 000000 |
Multifunction Monitoring Relays
Monitor phase, voltage, and frequency at the same time to protect motors, generators, and other three-phase circuits from burning out or overheating. They'll switch the circuit off if they detect voltage or frequencies outside of the set range or phase loss, imbalance, or reversal. Rated IP20, they have recessed terminals that keep fingers and other objects from touching live circuits. Mount them on a 35 mm DIN (also known as DIN 3 rail) for fast installation.
These relays use IO Link, so they 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.
Trip Voltage | Trip Frequency | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of Terminals | Input Voltage | Min. | Max. | Input Frequency, Hz | Min., Hz | Max., Hz | Trip Time, sec. | Reset Type | Switching Current @ Voltage | Max. Switching Voltage | Adjustment Style | Ht. | Wd. | Dp. | Each | |
1 Circuit Controlled with 1 Off (Normally Open) or 1 On (Normally Closed)—SPDT | ||||||||||||||||
With Screw Terminals and IO Link | ||||||||||||||||
| 12 | 24V DC | 90V AC | 760V AC | 50, 60 | 15 | 70 | 0.1-30 | Automatic | 3 A @ 240 V AC 1 A @ 24 V DC | 400V AC 250V DC | Keypad, External Controller | 3.9" | 0.9" | 3.6" | 0000000 | 0000000 |
With Spring-Clamp Terminals and IO Link | ||||||||||||||||
| 12 | 24V DC | 90V AC | 760V AC | 50, 60 | 15 | 70 | 0.1-30 | Automatic | 3 A @ 240 V AC 1 A @ 24 V DC | 400V AC 250V DC | Keypad, External Controller | 3.9" | 0.9" | 3.6" | 0000000 | 000000 |
Solid State Surface-Mount Timer Relays
Attach these relays to a flat surface using the mounting hole. They have no moving parts, so compared to mechanical switches, they require less maintenance, last longer, and are quieter.
Delayed start (delay-on-make) relays 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 a lubricant immediately, but it does not start rotating until the set time has elapsed.
Delayed switch-off (delay-on-break) relays activate with 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.
Interval relays use input voltage to turn on 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 time.
Repeat cycle relays turn on for a duration, then off for the same duration. They alternate between the two cycles until input voltage is removed. A common example would be a flashing light.
Switch-on (single-shot) relays require a switch to activate the relay. They’ll stay on for a 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.
Switches with a potentiometer (variable switch) allow you to adjust the delay within the range.
Timing Range | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of Terminals | Input Voltage | Control Current, mA | No. of | Overall | Switching Current @ Voltage | Ht. | Wd. | Dp. | Features | Each | |
Delayed Start (Delay-on-Make) | |||||||||||
1 Circuit Controlled with 1 Off (Normally Open)—SPST-NO | |||||||||||
| 2 | 12V AC, 12V DC | 21 | 1 | 0.05 sec.-1 sec. | 1 A @ 120 V AC | 2" | 2" | 0.89" | Potentiometer | 000000000 | 000000 |
| 2 | 12V AC, 12V DC | 21 | 1 | 0.25 sec.-5 sec. | 1 A @ 120 V AC | 2" | 2" | 0.89" | Potentiometer | 000000000 | 00000 |
| 2 | 12V AC, 12V DC | 21 | 1 | 0.5 sec.-10 sec. | 1 A @ 120 V AC | 2" | 2" | 0.89" | Potentiometer | 000000000 | 00000 |
| 2 | 12V AC, 12V DC | 21 | 1 | 3 sec.-60 sec. | 1 A @ 120 V AC | 2" | 2" | 0.89" | Potentiometer | 000000000 | 00000 |
| 2 | 12V AC, 12V DC | 21 | 1 | 15 sec.-300 sec. | 1 A @ 120 V AC | 2" | 2" | 0.89" | Potentiometer | 000000000 | 00000 |
| 2 | 12V AC, 12V DC | 21 | 1 | 30 sec.-10 min. | 1 A @ 120 V AC | 2" | 2" | 0.89" | Potentiometer | 000000000 | 00000 |
| 2 | 24V AC, 24V DC | 10 | 1 | 0.05 sec.-1 sec. | 1 A @ 120 V AC | 2" | 2" | 0.89" | Potentiometer | 000000000 | 00000 |
| 2 | 24V AC, 24V DC | 10 | 1 | 0.25 sec.-5 sec. | 1 A @ 120 V AC | 2" | 2" | 0.89" | Potentiometer | 000000000 | 00000 |
| 2 | 24V AC, 24V DC | 10 | 1 | 0.5 sec.-10 sec. | 1 A @ 120 V AC | 2" | 2" | 0.89" | Potentiometer | 000000000 | 00000 |
| 2 | 24V AC, 24V DC | 10 | 1 | 3 sec.-60 sec. | 1 A @ 120 V AC | 2" | 2" | 0.89" | Potentiometer | 000000000 | 00000 |
| 2 | 24V AC, 24V DC | 10 | 1 | 15 sec.-300 sec. | 1 A @ 120 V AC | 2" | 2" | 0.89" | Potentiometer | 000000000 | 00000 |
| 2 | 24V AC, 24V DC | 10 | 1 | 30 sec.-10 min. | 1 A @ 120 V AC | 2" | 2" | 0.89" | Potentiometer | 000000000 | 00000 |
| 2 | 120V AC, 120V DC | 4 | 1 | 0.05 sec.-1 sec. | 1 A @ 120 V AC | 2" | 2" | 0.89" | Potentiometer | 00000000 | 00000 |
| 2 | 120V AC, 120V DC | 4 | 1 | 0.25 sec.-5 sec. | 1 A @ 120 V AC | 2" | 2" | 0.89" | Potentiometer | 00000000 | 00000 |
| 2 | 120V AC, 120V DC | 4 | 1 | 0.5 sec.-10 sec. | 1 A @ 120 V AC | 2" | 2" | 0.89" | Potentiometer | 00000000 | 00000 |
| 2 | 120V AC, 120V DC | 4 | 1 | 3 sec.-60 sec. | 1 A @ 120 V AC | 2" | 2" | 0.89" | Potentiometer | 00000000 | 00000 |
| 2 | 120V AC, 120V DC | 4 | 1 | 15 sec.-300 sec. | 1 A @ 120 V AC | 2" | 2" | 0.89" | Potentiometer | 00000000 | 00000 |
| 2 | 120V AC, 120V DC | 4 | 1 | 30 sec.-10 min. | 1 A @ 120 V AC | 2" | 2" | 0.89" | Potentiometer | 00000000 | 00000 |
| 2 | 24-240V AC/24-240V DC | 10 | 1 | 1 sec.-1,023 sec. | 1 A @ 120 V AC | 2" | 2" | 0.89" | Potentiometer | 00000000 | 000000 |
Delayed Switch-Off (Delay-on-Break) | |||||||||||
1 Circuit Controlled with 1 Off (Normally Open)—SPST-NO | |||||||||||
| 5 | 120V AC | 36 | 1 | 0.05 sec.-1 sec. | 1 A @ 120 V AC | 2" | 2" | 0.88" | Potentiometer | 0000000 | 00000 |
| 5 | 120V AC | 36 | 1 | 0.25 sec.-5 sec. | 1 A @ 120 V AC | 2" | 2" | 0.88" | Potentiometer | 0000000 | 00000 |
| 5 | 120V AC | 36 | 1 | 0.5 sec.-10 sec. | 1 A @ 120 V AC | 2" | 2" | 0.88" | Potentiometer | 0000000 | 00000 |
| 5 | 120V AC | 36 | 1 | 3 sec.-60 sec. | 1 A @ 120 V AC | 2" | 2" | 0.88" | Potentiometer | 0000000 | 00000 |
| 5 | 120V AC | 36 | 1 | 15 sec.-300 sec. | 1 A @ 120 V AC | 2" | 2" | 0.88" | Potentiometer | 0000000 | 00000 |
| 5 | 120V AC | 36 | 1 | 30 sec.-10 min. | 1 A @ 120 V AC | 2" | 2" | 0.88" | Potentiometer | 0000000 | 00000 |
| 7 | 12V DC | 217 | 1 | 0.25 sec.-5 sec. | 1 A @ 120 V AC | 2" | 2" | 0.88" | __ | 00000000 | 00000 |
| 7 | 12V DC | 217 | 1 | 3 sec.-60 sec. | 1 A @ 120 V AC | 2" | 2" | 0.88" | __ | 00000000 | 00000 |
Interval | |||||||||||
1 Circuit Controlled with 1 Off (Normally Open)—SPST-NO | |||||||||||
| 5 | 120V AC | 25 | 1 | 0.05 sec.-1 sec. | 1 A @ 120 V AC | 2" | 2" | 0.88" | __ | 00000000 | 00000 |
| 5 | 120V AC | 25 | 1 | 3 sec.-60 sec. | 1 A @ 120 V AC | 2" | 2" | 0.88" | __ | 00000000 | 00000 |
| 5 | 120V AC | 25 | 1 | 30 sec.-10 min. | 1 A @ 120 V AC | 2" | 2" | 0.88" | __ | 00000000 | 00000 |
Repeat Cycle | |||||||||||
1 Circuit Controlled with 1 Off (Normally Open)—SPST-NO | |||||||||||
| 7 | 120V AC | 36 | 1 | 0.05 sec.-1 sec. | 1 A @ 120 V AC | 2" | 2" | 0.88" | __ | 00000000 | 00000 |
| 7 | 120V AC | 36 | 1 | 3 sec.-60 sec. | 1 A @ 120 V AC | 2" | 2" | 0.88" | __ | 00000000 | 00000 |
| 7 | 120V AC | 36 | 1 | 30 sec.-10 min. | 1 A @ 120 V AC | 2" | 2" | 0.88" | __ | 00000000 | 00000 |
Switch-On (Single-Shot) | |||||||||||
1 Circuit Controlled with 1 Off (Normally Open)—SPST-NO | |||||||||||
| 5 | 120V AC | 36 | 1 | 0.05 sec.-1 sec. | 1 A @ 120 V AC | 2" | 2" | 0.88" | Potentiometer | 00000000 | 00000 |
| 5 | 120V AC | 36 | 1 | 0.25 sec.-5 sec. | 1 A @ 120 V AC | 2" | 2" | 0.88" | Potentiometer | 00000000 | 00000 |
| 5 | 120V AC | 36 | 1 | 0.5 sec.-10 sec. | 1 A @ 120 V AC | 2" | 2" | 0.88" | Potentiometer | 00000000 | 00000 |
| 5 | 120V AC | 36 | 1 | 3 sec.-60 sec. | 1 A @ 120 V AC | 2" | 2" | 0.88" | Potentiometer | 00000000 | 00000 |
| 5 | 120V AC | 36 | 1 | 15 sec.-300 sec. | 1 A @ 120 V AC | 2" | 2" | 0.88" | Potentiometer | 00000000 | 00000 |
| 5 | 120V AC | 36 | 1 | 30 sec.-10 min. | 1 A @ 120 V AC | 2" | 2" | 0.88" | Potentiometer | 00000000 | 00000 |
| 7 | 12V DC | 217 | 1 | 0.25 sec.-5 sec. | 1 A @ 120 V AC | 2" | 2" | 0.88" | __ | 00000000 | 00000 |
| 7 | 12V DC | 217 | 1 | 0.5 sec.-10 sec. | 1 A @ 120 V AC | 2" | 2" | 0.88" | __ | 00000000 | 00000 |
| 7 | 12V DC | 217 | 1 | 3 sec.-60 sec. | 1 A @ 120 V AC | 2" | 2" | 0.88" | __ | 00000000 | 00000 |