Eaton MTL7764+ 2-Channel Zener Safety Barrier with Strain-Gauge Bridge Optimization and 12 V Working Voltage

Name: Eaton MTL7764+ 2-Channel Zener Safety Barrier with Strain-Gauge Bridge Optimization and 12 V Working Voltage
Brand: Shenzhen Hengyo Power Technology Co., Limited
SKU: MTL7764+
Availability: InStock

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Eaton MTL7764+ 2-Channel Zener Safety Barrier with Strain-Gauge Bridge Optimization and 12 V Working Voltage

Large Image : Eaton MTL7764+ 2-Channel Zener Safety Barrier with Strain-Gauge Bridge Optimization and 12 V Working Voltage

Product Details:

Place of Origin:	England
Brand Name:	MTL
Certification:	CE
Model Number:	MTL7764+

Payment & Shipping Terms:

Minimum Order Quantity:	1
Price:	negotiable
Packaging Details:	original package
Delivery Time:	In stock
Payment Terms:	T/T,Western Union
Supply Ability:	500pcs/month

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Eaton MTL7764+ 2-Channel Zener Safety Barrier with Strain-Gauge Bridge Optimization and 12 V Working Voltage

Description

Condition:

MTL Original Brand New

Warranty:

One Year

Application:

Oil Gas Chemical Industry

Shipping Way:

DHL FedEx

Highlight:

Eaton MTL7700 Zener Barrier

DIN-rail mounting safety barrier

MTL7764+ intrinsic safety barrier

MTL7764+ Eaton MTL Zener Safety Barrier

Product Overview

The MTL7764+ is a high-performance 2-channel shunt-diode safety barrier (Zener barrier) from Eaton's Crouse-Hinds series MTL7700 range, specifically engineered for strain-gauge bridge circuits, load cells, and Wheatstone bridge applications requiring intrinsic safety protection in hazardous areas.

This passive device limits the voltage and current that can reach a hazardous area under fault conditions, preventing ignition of flammable atmospheres. With a working voltage of 12 V, end-to-end resistance of 1,000 Ω, and positive polarity configuration, the MTL7764+ is the ideal solution for protecting sensitive strain-gauge based measurement equipment in Zone 0, 1, and 2 hazardous locations (gas groups IIC, IIB, IIA).

Key Features & Benefits

2-Channel Efficiency: Two independent intrinsically safe channels in a single compact housing
Strain-Gauge Bridge Optimization: Specifically designed for strain-gauge bridge circuits and load cell applications
12 V Working Voltage: Provides safe voltage limiting for strain-gauge bridge circuits
1,000 Ω End-to-End Resistance: Matches impedance requirements of typical strain-gauge bridge circuits
Positive Polarity Configuration: Designed for positive ground applications
Ultra-Slim DIN Rail Mounting: Compact 12.6 mm width for standard 35 mm DIN rail installation
Removable Terminals: Unique removable terminal blocks for easy cabling and maintenance
Bussed Power Capability: Reduces cabling requirements with integrated bussed power distribution
High Accuracy Signal Transfer: Passive shunt-diode design ensures minimal signal distortion
Wide Operating Temperature: Functions reliably from -20°C to +60°C

Technical Specifications

General Specifications

Parameter	Value
Manufacturer	Eaton (Crouse-Hinds series MTL)
Series	MTL7700 Range
Product Model	MTL7764+
Alternative Part Number	5710-032-006
Product Type	Shunt-Diode Safety Barrier (Zener Barrier)
Number of Channels	2 (dual-channel)
Polarity	Positive (+)

Electrical Ratings

Parameter	Value
Working Voltage (Vwkg)	12 V
Safety Description	12 V, 1,000 Ω, 12 mA
End-to-End Resistance	1,000 Ω (±10%)
Maximum Current	12 mA
Fuse Rating	50 mA
Max. End-to-End Resistance	1,050 Ω

Hazardous Area Specifications (Ex ia)

Parameter	Value
Maximum Voltage (Vmax)	10.9 V
Gas Groups	IIC, IIB, IIA
Zones	Zone 0, 1, 2
Equipment Protection Level (EPL)	Ga, Gb, Gc
Permitted Capacitance (Co)	9 μF
Permitted Inductance (Lo)	226 mH
Intrinsically Safe Circuit Power	0.072 W
Intrinsically Safe Circuit Current	24 mA
Non-Intrinsically Safe Voltage	AC250V (50/60Hz), DC250V

Mechanical Specifications

Parameter	Value
Width	12.6 mm / 13 mm
Height	90 mm / 88 mm
Depth	105 mm / 107 mm
Weight	100 g / 0.119 kg
Enclosure Material	Polycarbonate
Mounting	DIN rail (35 mm)
Terminals	Removable screw terminals

Environmental Specifications

Parameter	Value
Minimum Operating Temperature	-20°C
Maximum Operating Temperature	+60°C
Storage Temperature	-40°C to +80°C
Humidity	95% max (non-condensing)
Degree of Protection	IP20

Function Description

The MTL7764+ is a passive shunt-diode safety barrier that operates on the Zener barrier principle. It limits both voltage and current that can be delivered to a hazardous area circuit under fault conditions.

How it works:

Voltage limiting: Zener diodes clamp the output voltage to a safe level (12 V)
Current limiting: A series resistor (1,000 Ω) limits fault current to a safe value (12 mA)
Fusing: Internal 50 mA fuses provide backup protection under severe fault conditions
Grounding: The barrier requires a connection to a high-integrity earth ground

Safe Area (Control Side) → MTL7764+ → Hazardous Area (Field Side) Indicator/Excitation → (Voltage/Current limiting) → Strain-Gauge Bridge/Load Cell 12 V DC supply → (Zener diodes + 1kΩ resistor + 50mA fuse) [High-integrity earth ground required]

Applications

The MTL7764+ is specifically designed for strain-gauge and load cell applications in hazardous area installations:

Industry	Application
Oil & Gas	Tank level measurement using load cells on storage tanks
Chemical Processing	Vessel weighing systems, hopper scales, and silo level monitoring
Pharmaceutical	Batch weighing systems for solvent handling equipment
Mining	Conveyor belt weighing systems, bin level monitoring
Food & Beverage	Tank weighing for flammable liquid storage
Marine & Offshore	Cargo tank monitoring, mooring line tension measurement

Typical Field Devices Connected:

Strain-gauge bridge sensors (full Wheatstone bridge configuration)
Load cells (350 Ω to 800 Ω resistance)
Torque sensors
Pressure sensors based on strain-gauge technology
Weighing systems in hazardous areas

Certifications & Approvals

Certification	Status	Details
CCC Ex (China)	✅ Certified	Certificate 2020322316002294 - Valid to 2030-09-01
ATEX	✅ Certified	BAS01 ATEX 7217 - II (1) GD [Ex ia] IIC
IECEx	✅ Certified	International certification for explosive atmospheres
NEPSI	✅ Certified	China certification body approval
RoHS	✅ Compliant	Lead-free

Installation Information

Parameter	Detail
Mounting	Standard 35 mm DIN rail (EN 60715)
Terminals	Removable screw terminals
Grounding	Requires high-integrity earth ground connection
Clearance	Minimal - 12.6 mm width enables high-density installation
Operating Position	Any orientation

Important Installation Notes:

A high-integrity earth ground connection is mandatory for proper Zener barrier operation
Do not install in areas where condensation may occur
The barrier must be installed in a safe area (non-hazardous location)
Maximum cable parameters for IIC gas group apply to field wiring: Co = 9 μF, Lo = 226 mH

Overall Rating

5.0

Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings

5 stars

100%

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All Reviews

Oscar

United States Dec 24.2025

Helpful (50)

the best seller!

Buntoro

Singapore Nov 4.2019

Helpful (20)

fast respond and delivery

Ejiro

Nigeria Mar 6.2019

Helpful (58)

The vendor representative, Mitchell, is an awesome lady as she ensured that the order was delivered promptly to my location. Beyond that, she stood by me with all technical details to resolve issues I had on the machine. I couldn’t have had better services than this. Thank you Mitchell. Ejiro.