When it comes to protecting your circuit breakers and sensitive equipment, an undervoltage release (UVR) is a critical component. At Shansen Enterprises, we often get questions from engineers, OEMs, and panel builders about the ABB UVR T4-T5-T6 module. This blog is a curated list of the most frequently asked questions to help you make informed purchasing and installation decisions.
🔍 What is the ABB UVR T4-T5-T6?
The ABB UVR T4-T5-T6 is an undervoltage release accessory designed for ABB SACE Tmax T circuit breakers, specifically models T4, T5, and T6. It helps trip the breaker when system voltage drops below a safe threshold—safeguarding both the equipment and operators.
⚙️ Technical Specifications at a Glance
- Product Code: 1SDA054885R1
- Voltage Range: 380–440V AC
- Frequency: 50–60Hz
- Configuration: Loose or configurable
- Suitable For: T4, T5, T6 frames
- Compliance: IEC Standards
- Origin: Made in Italy, tested and repacked by ABB India
🧠 FAQs – All You Need to Know
1. What does an undervoltage release do?
An undervoltage release trips the circuit breaker if the system voltage falls below a preset level. This prevents unsafe operation of machinery and avoids damage to electrical components during brownouts or phase loss.
2. Is this UVR compatible with all ABB breakers?
No, this model (1SDA054885R1) is specifically designed for ABB SACE Tmax T4, T5, and T6 circuit breakers. Always verify the compatibility before ordering.
3. Can I install it myself?
While the installation is mechanically straightforward, we recommend that only certified professionals or panel builders handle the fitting and wiring, as incorrect installation can affect breaker operation and void warranties.
4. Where is the product manufactured?
The UVR is made in Italy by ABB and is imported, tested, and repacked in ABB India to ensure quality and compliance with regional standards.
5. How can I request a quote?
Shansen Enterprises does not offer direct checkout. Instead, you can request a quote via WhatsApp. This allows us to provide real-time stock updates, bulk pricing, and expert guidance.
6. What industries use this product?
This product is ideal for:
- Electrical control panels
- Industrial automation
- Infrastructure projects
- OEM manufacturing
- Power distribution systems
7. Is it CE or IEC compliant?
Yes, the UVR conforms to IEC safety and design standards, ensuring it’s suitable for both Indian and global industrial environments.
8. What’s inside the packaging?
Each unit comes with:
- 1 x Undervoltage Release Module
- Manufacturer’s label with serial & part number
- ABB-certified protective packaging
- Shansen Enterprises quality seal
9. What makes Shansen Enterprises a trusted supplier?
We are an Authorized ABB Channel Partner, offering 100% genuine products, fully tested and supported with after-sales assistance. Our team is trained in ABB product lines and offers timely support for industrial buyers.
10. Can I get bulk pricing?
Yes! We supply to OEMs, EPC contractors, and industrial resellers. Contact us directly for bulk quote discounts, custom packaging, or documentation needs.
💬 Still Have Questions?
Feel free to reach out to us via WhatsApp or contact form. Our team is always ready to assist you with ABB product selection, compatibility checks, and technical documentation.
🛒 Request a Quote Today
📲 Reach us on WhatsApp for best prices, live availability, and shipping details.
🔗 100% customer satisfaction. Genuine ABB electricals. Fast support.
UVR T4-T5-T6 Undervoltage Release – Shansen Enterprises



