The Optimum OP-EBT2 is a one-button electronic boost timer for heating or hot water, with four pre-set run times and a visual indicator. Press it to give the heating or immersion a timed run, and it switches itself off, so the immersion is not left on all evening because someone forgot.
Press up to four times to step through the boost options, and press again to cancel.
Boost selections
- 15 minutes
- 30 minutes
- 1 hour
- 2 hours
Key features
- Single-button operation with visual indicator
- Four pre-set timed outputs, cancel at any time
- Internally linked output relay, 16 A resistive
- Earth park terminal provided
- Surface-run cord outlet with cable restraint
- Mounts on a surface or in-wall pattress box
Technical specification
| Resistive load |
16 A |
| Boost times |
15 minutes, 30 minutes, 1 hour, 2 hours |
| Connections |
4 × wire-protect screw terminals plus earth park |
| Accuracy |
quartz regulated, typically ±1.0 second |
| Operating temperature |
minus 10 °C to +45 °C |
| Dimensions |
85 × 85 × 30 mm |
| Weight |
150 g |
| Mounting |
standard pattress (socket box), surface or in-wall |
Installation notes
Installation should be carried out by a qualified electrician in accordance with I.S. 10101.
Frequently Asked Questions
Q: Where can I buy an electronic boost timer in Ireland?
A: The Optimum OP-EBT2 electronic boost timer is available from Shamrock Electrical at shamrockelectrical.ie, with free delivery to every county in the Republic of Ireland from the first euro. You can also order for collection from our shop in Greenogue Business Park, Rathcoole, Co. Dublin, usually ready in 2 to 4 days.
Q: What is a boost timer for?
A: It gives heating or hot water a timed run at the press of a button, then switches itself off automatically. It stops the common problem of an immersion being left on for hours because nobody went back to turn it off.
Q: How do I change the boost length?
A: Press the button up to four times to step through 15 minutes, 30 minutes, 1 hour and 2 hours. Press again to cancel and switch off.
Q: Can I use it with an immersion heater?
A: Yes, that is one of the most common uses. It is rated 16 A resistive and switches an internally linked output relay. Your electrician will confirm it suits your immersion circuit.
Q: Do I need an electrician to install it?
A: Yes. It wires into a fixed circuit and mounts on a pattress box, so it should be installed by a registered electrician in accordance with I.S. 10101.
Q: Do you deliver across Ireland?
A: Yes. We deliver to every county in the Republic of Ireland, and you can also order for collection from our Rathcoole shop, usually ready in 2 to 4 days.
Every order ships with free delivery from the very first euro, with no minimum spend and no threshold to reach. New customers take 10 percent off a first order. Trade pricing is not shown online, so if you are buying for a job or a contract, call us on 01 401 9907 or email sales@shamrockelectrical.ie for your rate. We are an Irish owned electrical supplier based in Greenogue Business Park, Rathcoole, just off the N7 and well positioned for the M50.
