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Ground-Fault Monitoring Relays
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Screw Terminals | Screw Terminals Knob Adjustment |
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.
Knob Adjustment—Relays with knob adjustments have knobs right on the front where you can set your trip current.
LED Indicator—Relays with an LED indicator show the status of your relay, so you know it is wired correctly and when it is actuated.
No. of Terminals | Input Voltage, V AC | Trip Current Setting, amp | Trip Current, amp | Trip Time, sec. | Switching Current @ Voltage | Max. Switching Voltage | Adjustment Mechanism | Ht. | Wd. | Dp. | Features | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Screw Terminals | |||||||||||||||
2 Circuits Controlled with 2 Off or 2 On—DPDT | |||||||||||||||
| 12 | 24, 48, 120, 240 | 0.03 | — | 0 | 5 amp @ 240V AC 5 amp @ 24V DC | 250V AC 24V DC | — | 3.2" | 1.4" | 2.6" | LED Indicator | 8121N101 | 0000000 | ||
| 12 | 24, 48, 120, 240 | 0.3 | — | 0 | 5 amp @ 240V AC 5 amp @ 24V DC | 250V AC 24V DC | — | 3.2" | 1.4" | 2.6" | LED Indicator | 8121N102 | 000000 | ||
| 12 | 24, 48, 120, 240 | — | 0.03 to 5 | 0 to 5 | 5 amp @ 240V AC 5 amp @ 24V DC | 250V AC 24V DC | Knob | 3.2" | 1.4" | 2.8" | LED Indicator | 8121N103 | 000000 | ||
| 12 | 24, 48, 120, 240 | — | 0.3 to 30 | 0 to 5 | 5 amp @ 240V AC 5 amp @ 24V DC | 250V AC 24V DC | Knob | 3.2" | 1.4" | 2.8" | LED Indicator | 8121N104 | 000000 | ||
Frequency-Monitoring Relays
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DIN-Rail Mount | Relay-Socket Mount |
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—DIN-rail mount relays snap onto 35 mm DIN rail (also known as DIN 3 rail) for fast installation.
Relay-Socket Mount—Relay-socket mount relays plug into a socket (sold separately), which is required for installation.
Monitoring Relays | Sockets | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Trip Frequency Setting, Hz | ||||||||||||||||||
No. of Terminals | Input Voltage, V AC | 50 Hz Input | 60 Hz Input | Trip Time, sec. | Reset Type | Switching Current @ Voltage | Max. Switching Voltage | Adjustment Mechanism | Ht. | Wd. | Dp. | Features | Each | Each | ||||
1 Circuit Controlled with 1 Off or 1 On—SPDT | ||||||||||||||||||
DIN-Rail Mount | ||||||||||||||||||
| 9 | 24, 48, 120, 240 | 40 to 60 48 to 52 | 50 to 70 58 to 62 | 0.1 to 30 | Automatic, Manual | 8 amp @ 240V AC 5 amp @ 24V DC | 250V AC 24V DC | DIP Switch | 3.1" | 0.9" | 3.9" | LED Indicator | 8477N11 | 0000000 | ——— | 0 | ||
Relay-Socket Mount | ||||||||||||||||||
| 1 | 24, 48, 120, 240 | 40 to 60 48 to 52 | 50 to 70 58 to 62 | 0.1 to 30 | Automatic, Manual | 8 amp @ 240V AC 5 amp @ 24V DC | 250V AC 24V DC | DIP Switch | 3.1" | 1.4" | 3.7" | LED Indicator | 8477N12 | 000000 | 7122K12 | 000000 | ||
