Key specifications
| Supply voltage | 220–240 V |
|---|---|
| Safety time | 3 s |
| Flame detector type | ionisation electrode or photodiode fd |
| Protection class (IP) | IP40 |
| Dimensions | 10.7 x 8.1 x 3.6 cm |
| Fuel | gas, liquid fuel |
| Operating temperatures | -20–70 °C |
| Cycle type | intermittent |
| Ignition type | built-in high-voltage ignition transformer |
| Pre-purge time | 0 s |
Lowest price in the 30 days before the price drop
145.08EUR
in stock · 2excl. VAT · import VAT and duties on delivery · shipping calculated at checkout
- Delivery to 97 countries
- Original manufacturer part
- Dispatch within 24 h for stocked items
Description
The Brahma Control box NDM11 37501007 is a microprocessor-based control unit for automatic ignition and flame monitoring in atmospheric gas and liquid fuel burners without pre-purge. It operates in intermittent mode with a safety time of 3 seconds and a pre-purge time of 0 seconds. The device supports flame detection via an ionisation electrode or photodiode FD, and includes a built-in high-voltage ignition transformer. It operates at 220–240 V, has protection class IP40, and dimensions of 10.7 x 8.1 x 3.6 cm. The operating temperature range is -20 to 70 °C.
Further details
| Application | domestic gas boilers (atmospheric), water heaters, gas convectors, infrared heaters, small heat generators without forced ventilation, simple-type oil burners |
|---|---|
| Electric lockout reset | briefly interrupting power is sufficient to restart |
| Instant start-up | no pre-purge reduces burner start time |
| Self-diagnostics | microprocessor control with self-diagnosis and led indication of operating modes and fault codes |
| Universal flame control | works with an ionisation electrode (gas) or photodiode fd (liquid fuel) |
Choosing and fitting
Control boxes of this type are selected by matching supply voltage, safety time, pre-purge time, flame detector type, and fuel type to the burner's specifications. Ensure the control box's dimensions fit the mounting space and that the protection class suits the installation environment. Verify the ignition transformer is built-in or external as required. For installation, follow the manufacturer's wiring diagram and ensure proper grounding.
Signs of failure
Common failures include no ignition, flame loss during operation, or lockout without reset. Check the flame detector (ionisation electrode or photodiode) for contamination or damage, and verify the supply voltage is within range. If the control box does not reset after power interruption, it may indicate an internal fault.
All specifications
| Supply voltage | 220–240 V |
|---|---|
| Safety time | 3 s |
| Flame detector type | ionisation electrode or photodiode fd |
| Protection class (IP) | IP40 |
| Dimensions | 10.7 x 8.1 x 3.6 cm |
| Fuel | gas, liquid fuel |
| Operating temperatures | -20–70 °C |
| Cycle type | intermittent |
| Ignition type | built-in high-voltage ignition transformer |
| Pre-purge time | 0 s |
Part numbers
| SKU | 37501007 |
|---|---|
| Additional article | 246.124.267 |
| Model | NDM11 |
Similar parts
297.00 EURexcl. VAT · import VAT and duties on delivery
