Eaton MTL 778ac Shunt-Diode Safety Barrier Gray 2 channel Measurement Technology

$99.00

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Item Condition: Its Used Item

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Description

Eaton MTL 778ac Shunt-Diode Safety Barrier

MTL7700 Series Intrinsic Safety Barrier — 2-Channel (AC/DC)

Condition Used / Clean & In-Service Ready

This Eaton MTL 778ac safety barrier is in excellent, clean used condition. It was carefully pulled from a working, dust-free decommissioned system cabinet. The housing, integrated DIN-rail earth ground connections, and wire terminal clamping screws are fully intact and in perfect working order.

Product Overview

The Eaton MTL 778ac (manufactured by Measurement Technology Ltd.) is an ultra-reliable, DIN-rail mounted shunt-diode intrinsic safety barrier. It is designed to act as an energy-limiting protector between control room equipment (safe area) and field instrumentation located in explosive or hazardous atmospheres (hazardous area).

Featuring a 2-channel design, the MTL 778ac limits electrical energy (voltage and current) to levels well below what is required to ignite flammable gas or dust mixtures. It is particularly well-suited for alternating current (AC) signals, thermocouple lines, RTD temperature sensors, and low-level transmitter loops.

Technical Specifications

Specification Parameter Details
Brand / Manufacturer Eaton / MTL (Measurement Technology Ltd.)
Model / Part Number MTL 778ac
Series Reference MTL 7700 Series
Number of Channels 2 Independent Channels (AC / DC)
Nominal Resistance 28V — 300Ω / 28V — 28kΩ (approx.)
Safety Standard Intrinsically Safe (IS) / Explosion-Proof (Ex)
Mounting Style Standard 35mm DIN Rail (with integrated earth grounding contact)
Housing Color Industrial Gray with Black terminal hoods

Key Features

  • Dual-Channel Density: Houses two completely independent safety-barrier channels inside an ultra-slim 12.6mm housing profile to save valuable cabinet footprint.
  • Passive Solid-State Circuitry: Relies on robust zener diodes, resistors, and fast-acting fuses, requiring no external supply power to operate.
  • Integrated Earth Connection: Automatically grounds to the mounting DIN rail via standard busbar contacts, removing the need for auxiliary ground wiring.
  • High-Accuracy Signal Pass: Engineered to minimize loop impedance errors, preserving critical analog measurement and communication accuracy.

Additional information

Brand

Eaton

MPN

Model

Type

Country of Origin

Shipping Policy

Shipping Policy

1. Handling & Delivery Times
Handling Time: All orders are processed and packed within 1–3 business days.
Delivery Time: Once shipped, international delivery typically takes 6–10 business days.
You will receive a tracking number via email as soon as your order dispatches.

2. International Flat-Rate Shipping
We ship worldwide using a fixed flat rate.
The exact shipping cost for your location will be displayed directly in your shopping cart before checkout.

3. Need a Lower Shipping Rate?

If you are ordering multiple items or need relief on shipping costs, please reach out to us before purchasing. We are happy to check alternative carriers to find you a more cost-effective option.

Contact Us
Email: heecotechnical@gmail.com
WhatsApp/Phone: +923702502354

Refund Policy

Returns & Refunds Policy
Thank you for shopping with us. We want to ensure you get the exact technical hardware you need. Please review our policy regarding returns and refunds below.

1. Return Window & Eligibility
15-Day Limit: You have 15 days from the date of delivery to request a return or refund.

Inspection Clause: All returned items are subject to a thorough technical inspection upon arrival. A refund or exchange will only be approved if the item passes inspection based on the valid issues outlined below.

2. Valid Reasons for a Return
A return request will be accepted only under the following specific circumstances:

Description Mismatch: The item has an issue or defect that was not mentioned or disclosed in the product description.

Wrong Item Delivered: The item received does not match the order you placed.

Visual Discrepancy: The item delivered does not match the product images shown on our store.

Specification Changes: The item delivered is a different model, version, or hardware revision than the one advertised and ordered.

3. Non-Returnable Conditions
Returns will not be accepted if:

The item was ordered by mistake due to buyer error (e.g., ordering the wrong voltage or specification without checking compatibility).

The item shows signs of installation, misuse, wiring damage, or alteration after delivery.

The request is made after the 15-day window has expired.

Cancellation / Return / Exchange Policy

4. The Refund Process
Approval: Once your return is received and inspected, we will notify you whether your refund is approved or rejected based on the item\'s condition and the reason for return.

Payout: Approved refunds will be processed back to your original method of payment within [5-7] business days.

Exchanges: If the issue is a wrong model or revision, we will happily exchange it for the correct item (subject to stock availability) at no extra shipping cost to you.

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