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Smart Multifunction Monitoring Relays
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Remotely control these relays through an app on your smartphone—they simultaneously monitor phase, voltage, and frequency. The downloadable app lets you change the tripping range, modify settings, and save programs to apply to multiple relays. Tap your smartphone or tablet to the relays to connect to them. They use NFC (near field communication), so you don’t need to manually pair them like Bluetooth devices.
You’ll often see these relays used 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. You can see that they're wired correctly and when they're actuated based on the LED indicators. Rated IP20, they 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.
No. of Terminals | Input Voltage, V AC | Trip Voltage, V AC | Input Freq., Hz | Trip Freq., Hz | Trip Time, sec. | Reset Type | Switching Current @ Voltage | Max. Switching Voltage, V AC | Ht. | Wd. | Dp. | Operating System Compatibility | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2 Circuits Controlled with 2 Off or 2 On—DPDT | ||||||||||||||||
With Screw Terminals | ||||||||||||||||
| 12 | 208, 240, 300, 480 | 208 to 480 | 50, 60 | 45 to 66 | 0.1 to 60 | Automatic | 8 amp @ 240V AC | 250 | 3.5" | 0.9" | 3.9" | Android 7.0 or Later, iOS 14.5 or Later | 8452N11 | 0000000 | ||
Voltage-Monitoring Relays
Monitoring Relays
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With Spring-Clamp Terminals—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.
Knob Adjustment—Relays with knob adjustments 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.
No. of Terminals | Input Voltage | Trip Voltage Setting | Trip Time, sec. | Reset Type | Switching Current @ Voltage | Max. Switching Voltage | Adjustment Mechanism | Ht. | Wd. | Dp. | Features | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 Circuit Controlled with 1 Off or 1 On—SPDT | |||||||||||||||
With Spring-Clamp Terminals | |||||||||||||||
| 9 | 24V AC, 24V DC | 1V AC to 10V AC 3V AC to 30V AC 15V AC to 150V AC 1V DC to 10V DC 3V DC to 30V DC 15V DC to 150V DC | 0.1 to 30 | Automatic, Manual | 5 amp @ 240V AC 5 amp @ 30V DC | 250V AC 48V DC | Knob | 3.5" | 0.7" | 3.5" | LED Indicator | 8446N101 | 0000000 | ||
| 9 | 24V AC, 24V DC | 20V AC to 200V AC 30V AC to 300V AC 60V AC to 600V AC 20V DC to 200V DC 30V DC to 300V DC 60V DC to 600V DC | 0.1 to 30 | Automatic, Manual | 5 amp @ 240V AC 5 amp @ 30V DC | 250V AC 48V DC | Knob | 3.5" | 0.7" | 3.5" | LED Indicator | 8446N103 | 000000 | ||
| 9 | 120V AC, 240V AC | 1V AC to 10V AC 3V AC to 30V AC 15V AC to 150V AC 1V DC to 10V DC 3V DC to 30V DC 15V DC to 150V DC | 0.1 to 30 | Automatic, Manual | 5 amp @ 240V AC 5 amp @ 30V DC | 250V AC 48V DC | Knob | 3.5" | 0.7" | 3.5" | LED Indicator | 8446N102 | 000000 | ||
| 9 | 120V AC, 240V AC | 20V AC to 200V AC 30V AC to 300V AC 60V AC to 600V AC 20V DC to 200V DC 30V DC to 300V DC 60V DC to 600V DC | 0.1 to 30 | Automatic, Manual | 5 amp @ 240V AC 5 amp @ 30V DC | 250V AC 48V DC | Knob | 3.5" | 0.7" | 3.5" | LED Indicator | 8446N104 | 000000 | ||
Monitoring Relays with IO-Link
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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.
With Spring-Clamp Terminals—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.
No. of Terminals | Input Voltage, V DC | Trip Voltage | Trip Time, sec. | Reset Type | Switching Current @ Voltage | Max. Switching Voltage | Adjustment Mechanism | Ht. | Wd. | Dp. | Digital Display Type | Features | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 Circuit Controlled with 1 Off or 1 On—SPDT | ||||||||||||||||
With Screw Terminals | ||||||||||||||||
| 9 | 24 | 10V AC to 600V AC, 10V DC to 600V DC | 0 to 999 | Automatic | 3 amp @ 240V AC 1 amp @ 24V DC | 400V AC 250V DC | External Controller, Keypad | 3.6" | 0.9" | 3.6" | LCD | Remote Reset | 8446N105 | 0000000 | ||
With Spring-Clamp Terminals | ||||||||||||||||
| 9 | 24 | 10V AC to 600V AC, 10V DC to 600V DC | 0 to 999 | Automatic | 3 amp @ 240V AC 1 amp @ 24V DC | 400V AC 250V DC | External Controller, Keypad | 3.8" | 0.9" | 3.6" | LCD | Remote Reset | 8446N106 | 000000 | ||
Multifunction Monitoring Relays
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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 rail (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.
Spring-Clamp-Terminal Wire Connection—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.
No. of Terminals | Input Voltage, V DC | Trip Voltage, V AC | Input Freq., Hz | Trip Freq., Hz | Trip Time, sec. | Reset Type | Switching Current @ Voltage | Max. Switching Voltage | Adjustment Mechanism | Ht. | Wd. | Dp. | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1 Circuit Controlled with 1 Off or 1 On—SPDT | ||||||||||||||||
Screw Terminals with IO-Link | ||||||||||||||||
| 12 | 24 | 90 to 760 | 50, 60 | 15 to 70 | 0.1 to 30 | Automatic | 3 amp @ 240V AC 1 amp @ 24V DC | 400V AC 250V DC | External Controller, Keypad | 3.9" | 0.9" | 3.6" | 8449N12 | 0000000 | ||
Spring-Clamp Terminals with IO-Link | ||||||||||||||||
| 12 | 24 | 90 to 760 | 50, 60 | 15 to 70 | 0.1 to 30 | Automatic | 3 amp @ 240V AC 1 amp @ 24V DC | 400V AC 250V DC | External Controller, Keypad | 3.9" | 0.9" | 3.6" | 8449N11 | 000000 | ||
