MachineU > China Products > Machinery > Energy & Mineral Equipment > Mining Machinery > Mineral Separator
MTL7756AC 3-Channel Zener Barrier for RTD/Thermocouple Optimization with DIN Rail Mount
MTL7756AC 3-Channel Zener Barrier for RTD/Thermocouple Optimization with DIN Rail Mount
Specifications
Brand Name :
MTL
Model Number :
MTL7756ac
Place of Origin :
India
MOQ :
1
Price :
negotiable
Payment Terms :
T/T,Western Union
Supply Ability :
500pcs/month
Delivery Time :
In stock
Packaging Details :
original package
Certification :
FM ROSH
Condition :
original brand new
Warranty :
one year
Shipping way :
DHL FedEx
Application :
oil gas chemical industry
Description
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
Send your message to this supplier
Send Now

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

Ask Latest Price
Product Detail
Brand Name :
MTL
Model Number :
MTL7756ac
Place of Origin :
India
MOQ :
1
Price :
negotiable
Payment Terms :
T/T,Western Union
Contact Supplier
MTL7756AC 3-Channel Zener Barrier for RTD/Thermocouple Optimization with DIN Rail Mount

Shenzhen Hengyo Power Technology Co., Limited

Verified Supplier
1 Years
shenzhen
Since 2013
Business Type :
Distributor/Wholesaler, Exporter, Seller, Manufacturer, Trading Company
Main Products :
AC Servo Motor, Panasonic AC Servo Motor, AC Servo Driver
Total Annual :
2000000-5000000
Employee Number :
20~50
Certification Level :
Verified Supplier
Discover similar products
View More

Find Similar Products By Category:

Supplier Homepage Products Intrinsic Safety Barrier
MachineU China Products Machinery Energy & Mineral Equipment Mining Machinery Mineral Separator
Contact Supplier
Submit Requirement