Eaton MTL7787+ Intrinsically Safe Zener Barrier
The Eaton MTL7787+ is a single-channel intrinsically safe zener barrier designed as associated apparatus for hazardous-area applications. It protects field-installed devices in Zone 0, Zone 1, and Class I Division 1 locations by safely limiting electrical energy, while the barrier itself is installed in the safe area or approved non-incendive locations.
As part of the trusted MTL7700 Series, the MTL7787+ provides dependable voltage and current limiting for switch and control circuits. Its compact DIN-rail design, removable terminals, and robust electronic overvoltage protection ensure reliable operation, simplified installation, and long-term performance in demanding industrial environments.
Key Features:
✅ Intrinsically safe zener barrier (associated apparatus)
✅ Single-channel design for discrete signal protection
✅ Integrated electronic overvoltage protection
✅ DIN-rail mountable for control and marshalling panels
✅ Suitable for switch inputs and controller output circuits
✅ Removable terminals for easy wiring and maintenance
✅ Compact footprint for high-density installations
📦 Package Options:
🔹 Standard Unit: Eaton MTL7787+ Zener Barrier
Eaton MTL7787+ Technical Specifications:
| Feature | Details |
|---|---|
| Product Type | Intrinsically Safe Zener Barrier (Associated Apparatus) |
| Manufacturer | Eaton (MTL Series) |
| Model / Part Number | MTL7787+ |
| Channels | 1 |
| Barrier Technology | Zener (Shunt Diode) |
| Supply Voltage | Up to 35 V DC (unregulated) |
| Overvoltage Protection | Integrated electronic overvoltage protection |
| Typical Signals | Switch inputs and controller output circuits |
| Mounting | DIN Rail |
| Installation Location | Safe area or approved non-incendive location |
| Hazardous Area Protection | Protects Zone 0 / Zone 1 / Class I Div 1 field devices |
Certifications & Compliance:
🔗 ATEX – Certified associated apparatus for intrinsically safe circuits
🔗 IECEx – Approved for intrinsic safety systems
🔗 UL / cUL – Intrinsic safety barrier for Class I hazardous locations
🔗 Electrical Protection – Voltage and current limiting to prevent ignition
🔗 Download Datasheet
Applications of Eaton MTL7787+:
🔹 Oil & Gas
🔹 Chemical Plants
🔹 Process Automation
🔹 Hazardous Area Control Panels
🔹 Industrial Instrumentation Systems
What’s in the Box?
📦 1x Eaton MTL7787+ Zener Barrier
📦 1x Documentation Kit
Ordering & Shipping Details
📦 Lead Time: Available upon request
📍 Shipping Terms: Worldwide / Expedited Options
💳 Payment Options: Credit Card, PayPal, Net 30 Terms
FAQs:
Is the Eaton MTL7787+ certified for hazardous areas?
Yes. It is certified as associated apparatus for intrinsically safe systems and protects hazardous-area field devices.
Can this barrier be installed directly in Zone 0 or Zone 1?
No. The barrier is installed in the safe area or approved non-incendive locations.
What type of signals does it support?
It is designed for switch inputs and controller output circuits.
Does it include overvoltage protection?
Yes. Integrated electronic overvoltage protection is included.
