Australian Made Since 1978 Quality Reliability Local Support
Bolec Electronics DCT24ENC Digital Countdown Timer – 12V
$280.00
The DCT24ENC is a 12VDC electronic countdown timer with similar functions to the
ISG12 & ISG24. Its 44.7 × 44.7 mm front is designed to suit a
standard 45 mm square panel cut-out, and is designed as a direct panel-size replacement for
Powerite BCT2 and BCT2S timers in compatible 12V installations.
- Adjustable electronic countdown up to 24 hours
- Simple rotary-dial and push-button operation
- Bright OLED time display
- Volt-free C / NO / NC relay contacts
- Contact rating: 1 A at 30 VDC resistive
- 44.7 × 44.7 mm front for a standard 45 mm square cut-out
- External backup support and repeat of the last selected time
Replacing a Powerite BCT2 or BCT2S?
The 44.7 × 44.7 mm front is designed for the standard 45 mm square opening. Confirm supply voltage, terminal wiring and connected load before installation.
Prefer separate push buttons?
View the DCT24PB push-button countdown timer
Product document:
The document below includes the DCT24ENC datasheet, dimensions, specifications, operating instructions and installation information.
View DCT24ENC Datasheet & Instruction Manual
Product resources
BOLEC Product catalogue / Operating guide
Electronic countdown timer
DCT24ENC
12V electronic countdown timer with OLED display and changeover relay output
- 12 VDC
- Up to 24 hours
- C / NO / NC contacts
- 44.7 mm front / 45 mm cut-out
bolec.com.au | sales@bolec.com.au | 0480 312 400
DCT24ENC Digital Countdown Timer
45 mm electronic countdown timer for ISG12, ISG24, Powerite BCT2 and BCT2S applications
The DCT24ENC provides similar functions to the ISG12 & ISG24, with all timing carried out electronically. Its 44.7 × 44.7 mm front suits a standard 45 mm square panel cut-out and is designed as a direct panel-size replacement for Powerite BCT2 and BCT2S timers in compatible 12V installations.
A bright OLED display, simple rotary-dial control and volt-free changeover relay contacts provide reliable timed control for pumps, fans, lighting and other equipment operating for a preset period of up to 24 hours.- Fully electronic countdown control
- Hours-and-minutes countdown
- Single-dial operation
- Volt-free C / NO / NC output
- Direct panel-size replacement for Powerite BCT2 / BCT2S
A4 product guide — print or choose “Save as PDF”.
Overview
Simple electronic timing without mechanical wind-up operation
Set the required hours and minutes, start the countdown and let the relay control the connected circuit until time expires.Clear OLED display
Bright time readout for easy operation, with automatic display dimming after approximately 10 seconds.Quick repeat use
After the countdown finishes, the timer returns to the last selected time for the next cycle.Changeover relay contacts
Volt-free common, normally open and normally closed contacts suit a range of control circuits.Adjust while running
The selected time can be changed during an active countdown without interrupting the relay output.External backup support
An external backup supply can retain the remaining countdown time if the main supply is interrupted.Operation
Set and start the countdown in four steps
- Wake the displayPush the rotary dial if the display is dimmed.
- Set the hoursTurn the dial to select the hours, then press to confirm.
- Set the minutesTurn the dial to select the minutes, then press again to confirm.
- Start the timerPress and hold the dial for approximately one second.
Relay operation The relay remains operated during the countdown and releases automatically when the selected time expires.
Replacing a Powerite BCT2 or BCT2S The 44.7 × 44.7 mm front is designed to fit a standard 45 mm square panel opening used by Powerite BCT2 and BCT2S timers.
Confirm supply voltage, terminal wiring and connected load before installation.
Specifications and installation
Electrical rating and panel requirements
| Supply voltage | 12 VDC |
|---|---|
| Countdown range | Up to 24 hours, adjustable in hours and minutes |
| Relay contacts | Volt-free changeover contacts: C / NO / NC |
| Contact rating | 1 A at 30 VDC, resistive load |
| Front dimensions | 44.7 × 44.7 mm |
| Panel cut-out | Standard 45 mm square cut-out |
| Replacement applications | Direct panel-size replacement for Powerite BCT2 and BCT2S timers in compatible 12V installations, subject to terminal wiring and load verification |
| Case depth | 26 mm behind the panel |
| Recommended rear clearance | Minimum 50 mm including connector clearance |
| Front clearance | Approximately 8 mm for the dial and bezel |
Replacement fitting guide
Powerite BCT2 / BCT2S and standard 45 mm panel opening
The comparison below shows the DCT24ENC rotary model, the DCT24PB push-button model and a Powerite BCT2S timer, together with the standard 45 mm square panel fitting dimensions.
Before replacing an existing timer The panel opening may be compatible, but confirm the supply voltage, terminal wiring and connected load before installation.
Higher-current and 240VAC loads Use the DCT24ENC to operate a suitably rated external relay or contactor. All mains wiring must be completed by a licensed electrician.
Control 240V loads through an external relay
The DCT24ENC does not switch 240VAC directly. Its 1 A / 30 VDC volt-free output can energise the coil of a suitably rated external relay or contactor, which then switches the mains-powered load.- Use the DCT24ENC COM–NO output to control the external relay coil.
- Fit a back-EMF protection diode across a DC relay coil to protect the timer from voltage spikes.
- Suitable applications can include timed fans, lights, heaters, compressors and pump-control circuits.
All 240V wiring must be completed by a licensed electrician.
View the external relay wiring guideInstruction video
Watch the setup and operating sequence
DCT24ENC instruction video
bolec.com.au/wp-content/uploads/2025/07/Bolec-BCT24ENC-instruction.mp4
Alternative model
Prefer separate push-button controls?
The DCT24PB is available for applications where separate push buttons are preferred instead of a rotary dial.
DCT24PB Push-Button Timer
Compare the push-button version for applications requiring dedicated control buttons. View DCT24PBFAQ
Common DCT24ENC questions
Is the DCT24ENC similar to an ISG12 or ISG24 timer?
It provides similar countdown-timer functions, but the timing and display are carried out electronically rather than by a mechanical wind-up mechanism.
Can the DCT24ENC replace a Powerite BCT2 or BCT2S?
Yes, for compatible 12V installations. Its 44.7 × 44.7 mm front is designed to suit the standard 45 mm square panel opening used by many Powerite BCT2 and BCT2S timers. Confirm terminal wiring and connected load before installation.
What is the maximum countdown time?
Up to 24 hours, set in hours and minutes.
Can the time be adjusted while the timer is running?
Yes. The time can be adjusted during the countdown without interrupting the relay output.
Can it switch a high-current or 240VAC load directly?
No. The relay contact rating is 1 A at 30 VDC resistive. Use a correctly rated external relay or contactor.
Documents and support
Manuals and application assistance
View datasheet & instruction manualSpecifications, dimensions, installation and operating instructions in one document. External relay wiring guideLearn how to control higher-current or 240VAC loads through a suitable external relay. Technical supportCheck load ratings, relay selection and panel installation.
Application guides
Related guides
Read practical application notes and product guides from Bolec Electronics.
You may also like…
Related products
-
ISGUS replacement 30hours timer
$550.00Add to cart -
BMT-55 6 hour Mechanical Timer – Irrigation Pump Override Timer
$295.00Add to cart -
Isgus ISG12 12-Hour Mechanical Timer (OEX MO12)
$280.00 Read more -
PTF100 Programmable Timer 18 hours Countdown Timer – 240V (BCT-2S replacement timer)
$280.00Add to cart -
Test
$1.00Add to cart
