Legrand Transformer - 230V Primary - 24V Secondary
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Product Information
Full details
The Legrand 044211 is a safety transformer designed for electrical systems requiring a voltage conversion from 230V to 24V. It is ideal for professionals in electrical installation and maintenance who need a reliable component for specific low-voltage applications. A key benefit is its integrated electrostatic screen for enhanced safety and reduced interference. However, it is crucial to note that this transformer is *intended for safety transformer use only* and not for general power supply. Key features include a 230V primary voltage, 24V secondary voltage, and 40VA apparent power. It also boasts an electrostatic screen, DIN rail mounting capabilities (7.5mm or 15mm with plates), and a coupling strip for easy zero and ground connections, all conforming to EC EN 61558-2-6 standards.
All features
| Model Part Number | 44211 |
|---|---|
| Brand | Legrand |
Extended Product Information
FAQs
What is the primary use of the Legrand 044211 transformer?
This transformer is designed strictly as a safety transformer for providing a safe, isolated 24V secondary voltage from a 230V primary source, typically used in control circuits and low-voltage applications.
Can this transformer be used for general power supply?
No, this transformer is specifically intended for safety transformer use only and should not be used for general power distribution or to power devices not designed for its specific output.
How is the transformer mounted?
It can be mounted directly onto a 7.5mm DIN rail or onto a 15mm DIN rail using mounting plates. It also includes a coupling strip for simplified neutral and ground connections.
What is the meaning of 40VA?
VA stands for Volt-Amperes, which is a measure of apparent power. 40VA indicates the maximum apparent power the transformer can safely deliver at its secondary output (24V).
What does the electrostatic screen do?
The electrostatic screen helps to reduce electromagnetic interference (EMI) by shielding the output from the input side, ensuring cleaner power for sensitive connected devices.
Does this transformer require grounding?
The secondary side includes a coupling strip for connecting zero and ground. Proper grounding of the secondary circuit is recommended for safety and optimal performance, especially considering its safety transformer designation.
What are the dimensions or weight of the transformer?
The transformer weighs approximately 1310 g. Specific dimensions are not provided in the product details but it is designed for standard DIN rail mounting.
Troubleshooting
Transformer not powering secondary circuit
Verify primary 230V connection is secure and live. Check secondary 24V output with a multimeter. Ensure the load does not exceed 40VA. Confirm the coupling strip is correctly installed.
Overheating during operation
Ensure the load is within the 40VA limit. Check for adequate ventilation around the transformer and in the enclosure. Verify correct wiring to prevent short circuits.
Intermittent output voltage
Inspect all wiring connections for looseness or corrosion. Ensure the primary power source is stable. The electrostatic screen may require proper grounding for optimal performance in noisy environments.
Device emits a humming noise
A slight hum is normal for transformers. If the noise is excessively loud, check that the transformer is securely mounted to the DIN rail and that no foreign objects are in contact with it.
Pros and Cons
Pros
- Provides reliable voltage conversion for safety-critical applications.
- Integrated electrostatic screen reduces electrical noise.
- Flexible DIN rail mounting options for easy installation.
- Includes a coupling strip for simplified wiring.
- Meets relevant European safety standards (EC EN 61558-2-6).
Cons
- Limited to safety transformer applications; not for general power distribution.
- Specific voltage outputs (230V to 24V) may not suit all needs.
- Apparent power of 40VA is suitable for low-demand applications only.
- Requires DIN rail mounting infrastructure.
Setup, Compatibility & Care Instructions
Setup:
- Mounting: Securely mount the transformer onto a standard 35mm DIN rail. Use a 7.5mm rail directly, or a 15mm rail with appropriate mounting plates if required by your panel.
- Wiring: Connect the primary side to the 230V AC power source. Connect the 24V secondary output to your low-voltage circuit. Utilize the provided coupling strip for connecting the neutral and ground conductors on the secondary side.
- Enclosure: Ensure the transformer is installed within a suitable electrical enclosure to protect it from dust and physical damage.
Compatibility:
- Primary Voltage: Compatible with 230V AC power supplies.
- Secondary Voltage: Designed to output 24V AC.
- Load: Suitable for loads up to 40VA (approximately 1.67A at 24V).
- Mounting Rails: Fits standard 7.5mm and 15mm DIN rails.
Care:
- Cleaning: Disconnect power before cleaning. Wipe the exterior with a dry or slightly damp cloth. Avoid using solvents or abrasive cleaners.
- Ventilation: Ensure adequate ventilation around the transformer. Do not obstruct airflow to prevent overheating.
- Inspection: Periodically inspect wiring connections for tightness and signs of wear. Check for any physical damage.