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Eaton MTL Instruments MTL7789+ Shunt-Diode Safety Barrier Martek Marine MM89
SKU:
Eaton MTL Instruments / GM2V
Category: Safety Relay
Tags: 28V Barrier, Eaton, Hazardous Area Protection, Industrial Safety Relay, Intrinsically Safe Interface, Marine Instrumentation, Martek Marine, MM89, MTL7789+, Shunt-Diode Safety Barrier
Brand: Eaton
$185.00
Rated 0 out of 5
Item Condition: Its Used Item
6 in stock
Description
Eaton MTL7789+ Shunt-Diode Safety Barrier
Intrinsically Safe Hazard Zone Interface — 28V Martek Marine MM89 Compatible
Condition Used / Tested & Cleaned
This authentic Eaton MTL Instruments shunt-diode barrier is in excellent used condition. It has been pulled from a decommissioned, climate-controlled maritime monitoring panel, cleaned of dust, and inspected. All terminal clamping screws are in perfect working order with clean contact paths.
Product Overview
The Eaton MTL7789+ is an industry-standard, single-channel shunt-diode safety barrier engineered to provide intrinsic safety protection for electrical circuits running into explosive or volatile atmospheres. Crucially designed for hazardous gas and dust environments (Zone 0, 1, and 2), it blocks excess electrical energy from crossing from the safe-area control panel into the field sensors.
This specific model is widely utilized as a drop-in replacement barrier for **Martek Marine MM89** gas detection systems and bilge monitoring equipment. By limiting potential fault energy to completely safe, non-ignitable thresholds, the MTL7789+ guarantees comprehensive system safety compliance with international marine classification registries.
Technical Specifications
| Specification Parameter | Details |
|---|---|
| Brand / Manufacturer | Eaton (MTL Instruments) |
| Model Identifier | MTL7789+ (7789 Plus) |
| Safety System Lineage | Martek Marine MM89 Systems Integrated |
| Working Voltage (Un) | 26.2 V (Max Continuous working voltage) |
| Safety Parameters (Uo / Io) | 28 V / 93 mA |
| Channel Configuration | Single-Channel (Active Shunt Diode) |
| Safety Grounding | Direct grounding connection via integrated DIN-rail shoe |
| Mounting Profile | Standard 35mm T-section DIN-rail mounting |
Key Features
- Intrinsically Safe Barrier: Prevents any control equipment malfunction from sending spark-capable power levels down into dangerous maritime gas zones.
- Martek MM89 Drop-In: Pre-calibrated electrical impedance footprint makes it a direct, plug-and-play fitment for legacy and modern Martek Marine systems.
- Compact Ultra-Slim Profile: Features a high-density, side-by-side terminal arrangement, maximizing panel real estate inside congested electrical lockers.
- Fail-Safe Grounding Path: Dual grounding rivets on the DIN-rail anchor point provide redundant fault diversion directly to the ship’s copper ground bus.
Additional information
| Brand | Eaton |
|---|---|
| MPN | |
| Model | |
| Type |
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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