About Timer Relays
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Circuit Board Safety Relays
Reduce connection errors on circuit boards that control machine guards and other safety devices. Also known as force-guided contact relays, they have contact pairs that won’t close at the same time, even if contacts stick or weld shut. These relays take up less space on a board than those with electrical wiring because their solder pin terminals mount directly through circuit board holes. Use them to control high-power components, such as fans and heaters, from a low-power circuit.
For technical drawings and 3-D models, click on a part number.
| Number of Terminals | Input Voltage  | Control Current, mA | Switching Current @ Voltage | Max. Switching Voltage | Mechanical Life Cycles | Ht. | Wd. | Dp. | Pin Lg. | Features | Each | |
4 Circuits Controlled with 2 Off (Normally Open) and 2 On (Normally Closed)—4PST-2NO/2NC | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 10 | 24V DC | 15 | 6 A @ 240 V AC/30 V DC | 250V AC, 125V DC | 10,000,000 | 0.9" | 0.5" | 1.6" | 0.14" | Interlocked Opposing Contacts | 0000000 | 000000 |
4 Circuits Controlled with 3 Off (Normally Open) and 1 On (Normally Closed)—4PST-3NO/1NC | ||||||||||||
| 10 | 24V DC | 15 | 6 A @ 240 V AC/30 V DC | 250V AC, 125V DC | 10,000,000 | 0.9" | 0.5" | 1.6" | 0.14" | Interlocked Opposing Contacts | 0000000 | 00000 |
Solid State DIN-Rail Mount Multifunction Timer Relays
For fast installation, mount these relays to 35 mm DIN rail (also known as DIN 3 rail). They also mount to flat surfaces. With no moving parts, these solid state relays last longer and require less maintenance, are quieter, and switch faster than mechanical relays. They provide a variety of timing functions in one relay.
Use relays with DIP switches for more precise control than knobs. They make it easier to set multiple relays to the same timing range.
Relays that control 4 circuits require a relay socket (sold separately) to attach to DIN rail.
Timer Relays | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Timing Range | Relay Sockets | |||||||||||||
| No. of Terminals | Input Voltage | Control Current, mA | Timer Relay Function | No. of | O'all | Switching Current @ 240V AC | Max. Switching Voltage | Ht. | Wd. | Dp. | Each | Each | ||
Relays with Knob | ||||||||||||||
4 Circuit Control with 4 Off (Normally Open) or 4 On (Normally Closed)—4PDT | ||||||||||||||
| 14 | 120V AC | 15 | Delayed Start (Delay-on-Make) Interval Repeat Cycle | 4 | 0.1 sec.-10 min. | 3A | 250V AC | 1.1" | 0.9" | 2.1" | 000000 | 0000000 | 0000000 | 000000 |