In today’s industrial landscape, reliable control power is non-negotiable. Whether you’re operating automated systems, machinery, or HVAC equipment, dependable voltage transformation ensures uninterrupted performance. That’s where the Schneider Electric 9070T500D33 Control Transformer comes in – a trusted component engineered for durability, safety, and energy efficiency in demanding environments.
This comprehensive guide explores everything you need to know about the Schneider Electric 9070T500D33 Control Transformer – from its specifications and certifications to installation, compatible accessories, and common industrial applications.
What Is the Schneider Electric 9070T500D33 Control Transformer?
The Schneider Electric 9070T500D33 Control Transformer (also marketed under the Square D Telemecanique brand) is a 500 VA, 1-phase transformer designed to provide a reliable low-voltage power supply for industrial control circuits. It efficiently steps down 380/400/415 VAC input voltages to 115/230 VAC outputs, making it ideal for powering contactors, relays, and starters in control panels.
Built with copper windings and featuring a 115°C temperature rise, this transformer ensures exceptional thermal stability and electrical efficiency. The open-frame, panel-mount design provides easy integration into control cabinets while maintaining compliance with key safety standards.
Key features include:
- Power Rating: 500 VA
- Primary Voltage: 380/400/415 V AC
- Secondary Voltage: 115/230 V AC
- Frequency: 50/60 Hz
- Temperature Rise: 115°C (Class H insulation, 180°C max)
- Connections: Screw-clamp terminals (compatible with FSC2 finger-safe cover)
- Weight: 12.3 lb (5.58 kg)
Technical Specifications of the Schneider Electric 9070T500D33 Control Transformer
The Schneider Electric 9070T500D33 Control Transformer is engineered for precision, ensuring stable voltage delivery for sensitive control devices. Below are its detailed specifications:
|
Parameter |
Details |
|
Power Rating |
500 VA (UL/CSA), 300 VA (CE compliance) |
|
Primary Voltage |
380 / 400 / 415 VAC (multi-tap) |
|
Secondary Voltage |
115 / 230 VAC (selectable) |
|
Phase |
Single-phase |
|
Frequency |
50/60 Hz |
|
Temperature Rise |
115°C |
|
Insulation Class |
Class H (180°C max) |
|
Core/Winding Material |
Copper windings |
|
Enclosure Type |
Open frame, panel mount |
|
Dimensions (H x W x D) |
97.5 x 114.3 x 139.5 mm |
|
Weight |
Approx. 5.58 kg |
|
Certifications |
UL508, CSA C22.2, CE, RoHS, REACH |
This robust construction makes it suitable for continuous operation even under high ambient temperatures. Its copper windings minimize losses, and the screw-clamp terminals simplify installation and maintenance.
Compliance and Certifications
The Schneider Electric 9070T500D33 Control Transformer meets multiple international safety and environmental standards. It carries the following certifications:
- UL508 Listing (File E61239) – Meets stringent U.S. industrial control equipment standards.
- CSA C22.2 Approval (File LR37055) – Certified for Canadian markets.
- CE Marked – Complies with the European Low Voltage Directive (LVD).
- cUL Listed – Recognized for use in both U.S. and Canadian installations.
- RoHS and REACH Compliant – Free from hazardous substances such as lead, mercury, and PVC.
Additionally, Schneider Electric classifies it as a Green Premium product, signifying eco-friendly design and responsible manufacturing practices. The transformer includes a standard California Proposition 65 warning related to phenyl glycidyl ether, a common resin component used in industrial materials.
Alternative Models and Related Products
The 9070T500D33 belongs to Schneider Electric’s Type T Industrial Control Transformer family. This range provides multiple voltage and power configurations for different industrial needs.
Other Models in the Type T Family:
- 9070T250D33 – 250 VA, same primary/secondary configuration.
- 9070T750D1 – 750 VA, 240x480V primary / 120V secondary.
- 9070T1000D33 – 1000 VA, 380/400/415V primary / 115/230V secondary.
- 9070T3000D33 – 3000 VA, heavy-duty power handling.
Optional Versions:
- Type TF – Comes with factory-mounted fuses for circuit protection.
- Type E – Includes a protective enclosure for additional safety.
- Type MT – Features multi-tap secondary outputs for flexible voltage selection.
These variants allow engineers and panel builders to select the optimal control transformer depending on load requirements, environmental conditions, and safety needs.
Installation and Mounting Guidelines
Installing the Schneider Electric 9070T500D33 Control Transformer correctly ensures optimal performance and safety. Follow these guidelines for best results:
Mounting:
- Mount the transformer on a flat, rigid backplate using suitable hardware rated for its 12.3 lb weight.
- Ensure free air circulation around the unit to prevent overheating.
- Maintain an ambient temperature below 40°C for safe operation.
- Use Schneider’s FSC2 finger-safe terminal cover or equivalent to protect live terminals.
Wiring Instructions:
- Connect the primary terminals (H1–H4) according to the nameplate diagram. Use jumpers to match the correct input voltage (380V, 400V, or 415V).
- Configure the secondary terminals (X1–X4) for either 115V or 230V output as needed.
- After wiring, energize the primary side and measure the secondary voltage before connecting loads.
- Tighten terminal screws to 7–19 lb·in torque as specified.
- Cover all unused terminal posts and install protective fuse blocks for safety.
Following these steps helps prevent voltage drops, short circuits, and mechanical stress on terminals.
Compatible Accessories
Enhancing the functionality and safety of the Schneider Electric 9070T500D33 Control Transformer is possible through a range of accessories:
- Fingersafe Terminal Cover (FSC2): Provides insulation and prevents accidental contact with live terminals.
- Fuse Kits: Square D Class CC fuse holder kits can be installed on both the primary and secondary sides for overcurrent protection.
- Mounting Brackets: Designed for additional support in control panels.
- Protective Enclosures: For outdoor or dust-prone environments, using an enclosed version (Type E) is recommended.
To meet EN safety standards, Schneider Electric advises that terminal covers or equivalent protective accessories must always be installed.
Typical Applications of the Schneider Electric 9070T500D33 Control Transformer
The 9070T500D33 Control Transformer is engineered for industrial environments where voltage stability and electrical isolation are crucial. Below are common application scenarios:
- Motor Control Centers (MCCs): Supplies power to relays, starters, and contactors ensuring smooth motor operations.
- Automation Systems: Provides isolated control voltage for programmable logic controllers (PLCs) and signal relays.
- HVAC Equipment: Powers control circuits in heating, ventilation, and air conditioning systems.
- Conveyor Systems: Supports relays and contactors that manage conveyor operations.
- Process Equipment: Ensures stable low-voltage power to sensors, alarms, and control modules.
In all these applications, the Schneider Electric 9070T500D33 delivers the voltage stability and insulation integrity required to handle high inrush currents typical in inductive loads like solenoids, relays, and contactors.
Why Choose the Schneider Electric 9070T500D33 Control Transformer
Choosing the Schneider Electric 9070T500D33 means investing in quality, safety, and efficiency. Its compact design and high reliability make it a preferred choice for control engineers and panel builders worldwide. Key advantages include:
- Exceptional reliability under high-load and high-temperature conditions.
- Copper windings for low energy losses and long operational life.
- Comprehensive certification ensuring compliance with global standards.
- Compatibility with widely used accessories and protective components.
- Sustainability commitment through RoHS/REACH compliance and Green Premium labeling.
Whether for new installations or retrofits, this control transformer ensures peace of mind in mission-critical industrial operations.
Maintenance and Safety Tips
To ensure long service life and safe operation of your Schneider Electric 9070T500D33 Control Transformer, follow these best practices:
- Periodically inspect terminals for corrosion or loose connections.
- Clean dust and debris from the transformer surface and terminals.
- Monitor ambient temperature to avoid exceeding recommended limits.
- Replace damaged insulation or covers immediately.
- Always de-energize before performing maintenance.
Routine checks and proper installation significantly enhance performance and safety over time.
Related Product Collections ➜
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Conclusion: Power Your Control Circuits with Confidence
The Schneider Electric 9070T500D33 Control Transformer stands as a hallmark of reliability and engineering precision in industrial power management. With its efficient copper windings, thermal stability, and comprehensive certifications, it ensures safe and steady power to your control circuits—no matter how demanding the application.
For engineers, panel builders, and maintenance professionals seeking a trusted control transformer, the Schneider Electric 9070T500D33 delivers unmatched performance and longevity.
➡️ Explore the full range of Schneider Electric control transformers and find the right one for your project on our Control Transformers Collection Page.
