# Time Delay Relay, 2 Pole, 28 V, 1 s, 448 Days, DPDT, 8 A

![Product image](https://novapart.co/image/farnell:4205439/)

**URL**: https://novapart.co/products/A-AT-372/time-delay-relay-2-pole-28-v-1-s-448-days-dpdt-8-a
**SKU**: A-AT-372
**Manufacturer**: UNITED AUTOMATION
**Category**: Switches & Relays || Relays || Time Delay Relays - Electromechanical
**Price**: €33.4000
**Stock**: 10+
**Lead Time**: 30 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (20-Jun-2016) |
| Time Max | 448Days |
| Time Min | 1s |
| Product Range | - |
| Relay Mounting | Panel Mount |
| Contact Current | 8A |
| Relay Terminals | - |
| Nom Input Voltage | - |
| Timing Adjustment | DIP Switch |
| Contact Voltage Vac | 250V |
| Contact Voltage Vdc | 28V |
| Contact Configuration | DPDT |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4205439/)

## ~~-~~ AT= AT ~~-~~ 372 372 Ultra Timer ULTRA TIMER 

Time period 1 second to 64 weeks - accurate DIL switch time settings - 4 modes of operation - wide operating voltage. 

- Working voltage 9.5 - 30V DC - auto selected by timer (no need to set input) 

   - 1 second to 64 week time period. Selectable by DIL switch - crystal controlled for accurate time 

- “Pulse” activation after time out - option on two of the modes 

   - Double pole relay will switch mains - contacts rated at 8 Amps 

- Selectable trigger and reset input polarity 

- Four modes of operation 

Setting time period - seconds, minutes, hours, days and weeks - could not be simpler - just look up the time required in the “time table” and set the DIL switch accordingly 

Operating Mode A - trigger applied - times out and activates the relay - if auto link is fitted relay drops out after 20 seconds and is then “waiting for next trigger” 

Operating Mode B - trigger applied – relay activates for time period then drops out. It is then ready for the next trigger. 

however if the door is open after the 3 minutes the relay will activate - if auto link is fitted relay drops out after 20 seconds and is then “waiting for next trigger” 

Operating Mode C - once applied the trigger must remain for the duration of the time setting to activate the relay. An example of this would be monitoring a fire door. If the door is opened the timer starts (say it has been set for 3 minutes) if the door closes before the three minutes nothing happens, 

Activation - trigger and reset input polarity is set by jumper links. 

## Specification 

## Input Levels for Trigger or Reset 

## LOW: 

Less than 220 ohms to ground OR an input of less than 0.8 volts 

## HIGH: 

Greater than 4700 ohms to ground OR an input of greater than 4 volts Maximum input voltage 30V Minimum input voltage -4V 

Peak current available from either pin, 5mA 

## Output Levels 

## Double pole contacts 

AC: Maximum switching voltage 250 volts, maximum current 8 Amps (non inductive load) 

DC: Maximum switching voltage 30 volts, maximum current 5 Amps (non inductive load) 

## Environmental Operating Conditions 

Temperature range -10°C to +60°C Maximum humidity 80% non condensing 

## Supply Voltage 

Between 9.5 to 30V, automatically selected by the timer, no need to set jumpers or cut links. 

## Unit Supplied 

In strong cardboard carton with 4 sticky fixers 

## Dimensions 

77.9 X 47mm 

## Packing Weight 

80 grams 

Minimum switching level 5V @ 10mA 



## Links

- [View this product on Novapart](https://novapart.co/products/A-AT-372/time-delay-relay-2-pole-28-v-1-s-448-days-dpdt-8-a)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/united-automation/a-at-372/time-delay-relay-dpdt-250vac-28vdc/dp/4205439)
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