Overview
The Eaton MTL7700 MTL7787+ Single-channel Zener Diode Type 26V DC (Stable Voltage) DIN Rail (T-shaped), equipped with IS grounding connection, detachable terminals, supports 2.5mm² wire, IP20 internal fuse + secondary Zener diode redundant voltage limiting, compatible with 4-20mA two-wire standard / intelligent transmitters
Specification
| Item | Specification |
|---|---|
| Product Type | Single Channel Zener Diode Intrinsic Safety Barrier |
| Series | MTL7700 Series |
| Model | MTL7787+ |
| Channel Quantity | 1 Channel |
| Width | 12.5mm |
| Mounting Type | DIN Rail Mount |
| Max Safe Voltage Uo | 28V DC |
| Max Safe Current Io | 93mA |
| Current Limiting Resistor | 300Ω |
| Operating Power Supply | 26V DC Regulated |
| Loop Voltage at 20mA | 12.9V |
| Voltage Drop (250Ω Load) | 5V |
| End-to-End Resistance | ≤234Ω |
| Accuracy | ±2μA |
| Safe Side Load Range | 0–500Ω |
| Explosion-proof Grade | Ex ia IIC T4~T6 Ga |
| Certification | ATEX, IECEx |
| Applicable Area | Zone 0/1/2, IIC explosive gas environment |
| Operating Temperature | -20°C ~ +60°C |
| Wire Specification | Up to 2.5mm² |
| Protection Grade | IP20 |
| Application | 4-20mA 2-wire transmitter analog signal isolation and energy limitation |
FAQ
1.What type of safety barrier is MTL7787 +?
The Single-channel zener diode type intrinsic safety barrier, compatible with 4-20mA two-wire analog signals, is used for instrument signal isolation and energy limitation in hazardous explosion areas.
2.What hazardous areas can MTL7787 be applied to?
Supported. The Zone 0, Zone 1, Zone 2, IIC category explosive gas hazardous environment
3.How many signal channels does MTL7787 have?
The One signal channel.
4.What is the maximum end-to-end resistance limit for MTL7787?
The The maximum resistance limit is: 333Ω.
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