MTL7756AC 3-Channel Zener Barrier for RTD/Thermocouple Optimization with DIN Rail Mount

Name: MTL7756AC 3-Channel Zener Barrier for RTD/Thermocouple Optimization with DIN Rail Mount
Brand: Shenzhen Hengyo Power Technology Co., Limited
SKU: MTL7756ac
Availability: InStock

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MTL7756AC 3-Channel Zener Barrier for RTD/Thermocouple Optimization with DIN Rail Mount

Large Image : MTL7756AC 3-Channel Zener Barrier for RTD/Thermocouple Optimization with DIN Rail Mount

Product Details:

Place of Origin:	India
Brand Name:	MTL
Certification:	FM ROSH
Model Number:	MTL7756ac

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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MTL7756AC 3-Channel Zener Barrier for RTD/Thermocouple Optimization with DIN Rail Mount

Description

Condition:

Original Brand New

Warranty:

One Year

Shipping Way:

DHL FedEx

Application:

Oil Gas Chemical Industry

Highlight:

MTL Zener Barrier safety isolator

intrinsic safety barrier with warranty

MTL7756ac Zener Barrier isolator

MTL7756AC Dual Channel Analog Current Intrinsically Safe Zener Barrier DIN Rail Mount

Product Overview

The MTL7756ac is a high-performance 3-channel shunt-diode safety barrier (Zener barrier) from Eaton's Crouse-Hinds series MTL7700 range, specifically engineered for grounded bridge RTD and thermocouple applications requiring intrinsic safety protection in hazardous areas.

Model Number Decoding: MTL7756ac

Code Segment	Meaning
MTL	MTL Instruments Group (now Eaton)
77	MTL7700 series — Shunt-diode safety barriers
56	Specific barrier configuration for grounded bridge RTD applications
ac	Non-polarized, AC/DC compatible configuration

Key Features & Benefits

3-Channel Efficiency: Three independent intrinsically safe channels in a single compact housing
RTD & Thermocouple Optimization: Specifically designed for grounded bridge RTD applications
Low-Voltage/High-Current Design: Safety description of 3V DC, 10 Ω, 300mA
3-Wire RTD Support: Compensates for lead resistance for accurate temperature measurement
AC/DC Compatibility: Non-polarized operation eliminates wiring errors
Removable Terminals: Unique removable terminal blocks for easy cabling and maintenance
Bussed Power Capability: Integrated bussed power distribution reduces cabling requirements
Angled Wire Entry: Wire entry is angled to assist wiring within limited space enclosures
Ultra-Slim DIN Rail Mounting: Compact 12.6 mm width for standard 35 mm T-section DIN rail
Dual-Stage Protection: Two stages of pulse-tested Zener diodes and terminating resistor
Global Approvals: ATEX, IECEx, UL, CSA certifications for international installation

Technical Specifications

Parameter	Value
Manufacturer	Eaton (Crouse-Hinds series MTL)
Series	MTL7700 Range
Product Model	MTL7756ac
Number of Channels	3 (three-channel)
Polarity	AC (non-polarized)
Rated Supply Voltage DC	3 V DC
Safety Voltage Maximum	2.7 V DC
Safety Current Maximum	300 mA
Safety Current Resistance	10 Ω
Width	12.6 mm
Height	90 mm
Depth/Length	105 mm
Weight	140 g
Mounting	35 mm T-section DIN rail (EN 60715)
Operating Temperature	-20°C to +60°C / +65°C
Gas Groups	IIC, IIB, IIA
Zones	Zone 0, 1, 2

Function Description

The MTL7756ac 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 (2.7V)
Current limiting: A series resistor (10Ω) limits fault current to a safe value (300mA)
Fusing: A fuse protects the diodes with two stages of voltage limitation
AC/DC compatibility: Non-polarized operation for both AC and DC circuits
Grounded bridge configuration: Specifically designed for 3-wire RTDs

Applications

Industry	Application
Oil & Gas	3-wire Pt100 temperature measurement on offshore platforms and refineries
Chemical Processing	Reactor temperature monitoring with grounded bridge RTDs
Pharmaceutical	Sterile processing temperature measurement requiring Ex ia IIC certification
Power Generation	Turbine bearing temperature monitoring with 3-wire RTDs
Industrial Automation	Process temperature measurement in hazardous locations

Installation Information

Parameter	Detail
Mounting	Standard 35 mm T-section DIN rail (EN 60715)
Terminals	Removable screw terminals, colour-coded (blue for hazardous area)
Grounding	High-integrity earth connection made simultaneously when clipping onto DIN rail
Wire Entry	Angled to assist wiring in limited space enclosures
Terminal Capacity	Accommodates conductors up to 2.5 mm²

Ordering Information

Item	Details
Part Number	MTL7756ac
Catalog Number	MTL7756ac
Brand	Eaton (Crouse-Hinds series MTL)
EAN	3066227675730
Country of Origin	India
Condition	New, Original, Factory Sealed

Overall Rating

5.0

Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings

5 stars

100%

4 stars

3 stars

2 stars

1 stars

All Reviews

Dean

Australia Oct 7.2024

Helpful (8)

Excellent communication, great service and delivery was fast. Thank you.

Bozek

Poland Jan 14.2024

Helpful (50)

Best Seller

Roni

Indonesia Nov 30.2023

Helpful (6)

After plugged, it plays well

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Contact Person: Vivian Chan

Tel: +86 13510341645

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