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DBB01CM24 – SPDT DELAY ON RELEASE TIMER
Carlo Gavazzi DBB01CM24 capacitor-powered true delay-on-release timer relay with a 0.1–600-second adjustable range, 24–240 V AC/DC supply and 8 A SPDT output.
£74.57
Why Choose the Carlo Gavazzi DBB01CM24 True Delay-on-Release Timer?
The Carlo Gavazzi DBB01CM24 is a capacitor-powered true delay-on-release timer relay designed to maintain a controlled output period after its power supply is removed. As part of the Carlo Gavazzi DBB01 timer series, it provides dependable timed switching for industrial machinery, automation equipment and electrical control systems.
When power is applied, the relay energises automatically. Removing the supply starts the selected timing period, during which the output remains energised before releasing at the end of the delay. Because the release delay is capacitor powered, the timer operates without a separate trigger input or a continuous external supply during timing.
With four selectable timing ranges covering 0.1–600 s, a wide 24–240 V AC/DC supply and an 8 A SPDT relay output, the DBB01CM24 is ideal for controlled shutdown and run-on applications. Its 22.5 mm DIN-rail housing enables straightforward installation inside industrial control panels.
Key Advantages
- Capacitor-powered true delay-on-release operation.
- Wide adjustable timing range from 0.1–600 s.
- Versatile 24–240 V AC/DC multi-voltage supply.
- High-capacity 8 A SPDT changeover relay output.
- Four timing ranges selectable using internal DIP switches.
- Automatic timing start when the power supply is removed.
Key Features
- Carlo Gavazzi DBB01 true delay-on-release timer series.
- Four selectable ranges covering 0.1–600 s.
- 24–240 V AC/DC combined supply range.
- SPDT relay output rated at 8 A at 250 V AC for resistive loads.
- Timing repeatability of ≤ 0.2%.
- Knob-adjustable delay setting with DIP-switch range selection.
- Green LED indication for power-supply status.
- DIN-rail housing with screw-terminal connections.
True Delayed Release Without a Continuous Supply
A true delay-on-release timer uses stored internal energy to keep its relay energised for a preset period after supply power is removed. This makes it suitable for applications where a controlled delay must continue even though the initiating power source is no longer present.
The DBB01CM24 begins timing automatically following supply interruption and releases its output when the selected period expires. If power returns before the relay releases, the timing cycle resets and the relay remains energised, supporting reliable operation in automated shutdown and run-on circuits.
Typical Applications
- Delayed machinery shutdown sequences.
- Fan, blower and pump run-on control.
- Industrial automation and process equipment.
- Motor control centres and electrical panels.
- Packaging and production machinery.
- Lighting, alarms and ventilation systems.
Technical Specifications
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| Supply Voltage | 110–127 V AC/DC, 208–250 V AC/DC, 24 V AC, 24 V DC, 48–72 V AC/DC | |
|---|---|---|
| Mounting Type | DIN rail | |
| Device Type | Single-function timer | |
| Timing Function | Off-delay | |
| Timing Range | 0.1 s – 10 min | |
| Coil / Supply Voltage | 110 V AC, 110 V DC, 115 V AC, 120 V AC, 125 V DC, 208 V AC, 220 V AC, 220 V DC, 230 V AC, 24 V AC, 24 V DC, 240 V AC, 48 V AC, 48 V DC, 60 V DC, 72 V DC | |
| IP Rating | IP20 | |
| Manufacturer | Carlo Gavazzi | |
| Series | DBB01 | |
| Model | DBB01CM24 | |
| Product type | True delay-on-release timer relay | |
| Timing method | Capacitor powered | |
| Timing range | 0.1–600 s | |
| Selectable ranges | 0.1–1 s, 1–10 s, 6–60 s and 60–600 s | |
| Range selection | DIP switches | |
| Time adjustment | Front-mounted rotary knob | |
| Repeatability | ≤ 0.2% | |
| Supply voltage | 24–240 V AC/DC +10%/-15% | |
| Supply frequency | 45–65 Hz | |
| Rated power consumption | 2.2 VA AC or 0.6 W DC | |
| Minimum supply pulse | 200 ms | |
| Output configuration | 1 SPDT changeover relay | |
| Resistive contact rating | 8 A at 250 V AC or 5 A at 24 V DC | |
| Inductive contact rating | 2.5 A at 250 V AC or 2.5 A at 24 V DC | |
| Protection rating | IP20 | |
| Mounting type | DIN-rail mounting | |
| Connection type | Screw terminals | |
| Operating temperature | -20 to 60 °C | |
| Dimensions (W × H × D) | 22.5 × 80 × 99.5 mm | |
| Weight | approx. 120 g | |
| Approvals | UL, CSA and CE marked |
Frequently Asked Questions
What is the Carlo Gavazzi DBB01CM24 used for?
This timer keeps its relay output energised for an adjustable period after the power supply is removed, making it suitable for controlled shutdown and run-on applications.
What does true delay on release mean?
True delay on release means the timer uses internally stored energy to maintain its output during the delay period without requiring continuous external power.
What timing range does the DBB01CM24 provide?
The timer provides four selectable ranges covering adjustable delays from 0.1–600 s.
What supply voltage does the timer require?
The DBB01CM24 operates from a wide 24–240 V AC/DC supply.
What type of output does the DBB01CM24 have?
It has one SPDT changeover relay output rated for resistive loads up to 8 A at 250 V AC.
Trusted Industrial Timing from Carlo Gavazzi
Carlo Gavazzi timer relays are widely used by control-panel builders, machine manufacturers and automation engineers for reliable timed switching in industrial equipment and building automation systems.
