MTL5561 MTL Isolator Barrier Fire and Smoke Detector Interface
Eaton Crouse-Hinds series MTL5500 fire and smoke detector interface featuring 2-channel fully floating design,
20-35 Vdc power supply, and loop-powered operation. Provides reliable signal isolation for fire and smoke detection
systems in hazardous locations with reverse polarity protection.
Product Overview
| Product Name |
Eaton Crouse-Hinds series MTL5500 fire and smoke detector interface |
| Catalog Number |
MTL5561 |
| EAN |
3066227675809 |
| Product Dimensions |
109.8 mm (Length/Depth) × 118.8 mm (Height) × 15.8 mm (Width) |
| Product Weight |
150 g |
| Global Catalog |
MTL5561 |
| Product Type |
Fire and smoke detector interface |
Technical Specifications
Area Classification
Hazardous/Classified Locations
Standards Compliance
IECEx/ATEX, IEC
Operating Temperature
-20°C to 60°C
Storage Temperature
-40°C to 80°C
Humidity
5-95% relative humidity
Signal Type
Fire and smoke
Response Time
Settles to within 5% of final value within 1.5ms
Number of Channels
2, fully floating
Terminal Capacity
Accepts conductors up to 2.5mm² stranded or single-core
Mounting Method
T-section 35mm DIN rail
Safety Integrity Level
SIL2 according to IEC61508
Systematic Capability
Input circuit protected against reverse polarity
Electrical Connection
Crimp ferrules
Maximum Input Voltage
6-30 Vdc
Maximum Output Voltage
28V from 300Ω
Galvanic Isolation
250V rms between safe-area circuits and power supply
Power Dissipation
0.7W max at 24V with 40mA signal
0.9W max at 30V with 40mA signal
Transfer Accuracy
Better than 400μA
Temperature Drift
<4μA/°C (0°C to 60°C)
<15μA/°C (-20°C to 0°C)