About Timer Relays
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Choosing an Electrical Switch
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Recessed Push-Button Switches
Often used to trigger alarms, these switches have a recessed button to prevent accidental activation. Mount under desks or in other discrete locations to avoid drawing attention.
For technical drawings and 3-D models, click on a part number.
Housing | Mounting | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Actuator Color | No. of Circuits Controlled | Switch Starting Position | Switch Action | No. of Terminals | Industry Designation | Features | Voltage | Dia. | Dp. | Material | Color | Fasteners Included | No. of Holes | Hole Dia. | Each | |
Plastic Actuator with Screw Terminals | ||||||||||||||||
Round | ||||||||||||||||
| Red | 2 | 2 Off (Normally Open) | Springs Back (Momentary) | 7 | DPST-NO | Tamper Alert | 12V DC-30V DC | 3 3/16" | 1 1/4" | Plastic | Gray | No | 3 | 5/32" | 000000 | 000000 |
Design-Your-Own Rocker Switches
Choose from a variety of messages and colored lenses to combine a rocker with a base for a complete switch.
Bases with an on-on position designation alternate power between sets of terminals.
Note: Illuminated switches include a bulb. If wiring the switch and the bulb to the same circuit, the circuit voltage must not exceed bulb voltage.
For technical drawings and 3-D models, click on a part number.
| No. of Positions | Position Illuminated | No. of Circuits Controlled | Switch Starting Position | Switch Action | No. of Terminals | Industry Designation | Position Designation | Color | Switching Current @ Voltage | Max. Voltage | Bulb Voltage | Quick-Disconnect Tab Wd. | Each | |
| 2 | Top/Bottom | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Stays Switched (Maintained) | 7 | SPDT | On-On | Black | 15 A @ 125 V AC, 15 A @ 28 V DC | 30V DC 250V AC | 14V DC | 0.25" | 0000000 | 000000 |
| 3 | Top/Bottom | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Stays Switched (Maintained) | 7 | SPDT | On-Off-On | Black | 15 A @ 125 V AC, 15 A @ 28 V DC | 30V DC 250V AC | 14V DC | 0.25" | 0000000 | 00000 |
| 3 | Top/Bottom | 1 | 1 Off (Normally Open) or 1 On (Normally Closed) | Springs Back (Momentary) | 7 | SPDT | (On)-Off-(On) | Black | 15 A @ 125 V AC, 15 A @ 28 V DC | 30V DC 250V AC | 14V DC | 0.25" | 0000000 | 00000 |
Rotary Switches
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.
For technical drawings and 3-D models, click on a part number.
Shaft | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| No. of Circuits Controlled | Switch Action | No. of Positions | No. of Terminals | Dp. Behind Panel | O'all Dia. | Lg. | Dia. | Each | ||
Nickel-Plated Brass with Black Plastic Knob | ||||||||||
With Solder Turret Terminals for 1/4" Panel Cutout Dia. | ||||||||||
| 1 | Stays Switched (Maintained) | 6 | 7 | 1" | 9/16" | 13/16" | 1/8" | 3 A @ 125 V AC, 2 A @ 30 V DC | 0000000 | 000000 |
Surface-Mount Motor Voltage Monitors
Protect electric motors from phase loss, phase reversal, overvoltage, undervoltage, and voltage imbalance. Also known as voltage-monitoring relays, these monitors cut power to a motor when a fault occurs.
For technical drawings and 3-D models, click on a part number.
Trip Time, sec. | Switching | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Input Voltage Range | No. of Terminals | Control Power, W | Voltage Imbalance Adjustment | Automatic Reset | Delayed Automatic Reset | Current, A | Voltage | Ht. | Wd. | Specifications Met | Each | |
1 Circuit Controlled with 1 Off (Normally Open) or 1 On (Normally Closed)—SPDT | ||||||||||||
Three Phase | ||||||||||||
| 190-480V AC | 7 | 6 | 2%-8% | 1-30 | 1-500 | 10 | 240V AC | 3.5" | 2.08" | UL Listed | 0000000 | 0000000 |
| 475-600V AC | 7 | 6 | 2%-8% | 1-30 | 1-500 | 10 | 240V AC | 3.5" | 2.08" | UL Listed | 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 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.
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.
For technical drawings and 3-D models, click on a part number.
Timing Range | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Number of Terminals | Input Voltage | Control Current, mA | No. of | Overall | Switching Current @ Voltage | Ht. | Wd. | Dp. | Each | |
Delayed Switch-Off (Delay-on-Break) | ||||||||||
1 Circuit Controlled with 1 Off (Normally Open)—SPST-NO | ||||||||||
| 7 | 12V DC | 217 | 1 | 0.25 sec.-5 sec. | 1 A @ 120 V AC | 2" | 2" | 0.88" | 00000000 | 000000 |
| 7 | 12V DC | 217 | 1 | 3 sec.-60 sec. | 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 | ||||||||||
| 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 |