Measurement Technology Ltd MTL3046B Repeater Power Supply

Brand: Measurement Technology Ltd. (MTL)  
Model: MTL3046B  
Type: Repeater Power Supply (Intrinsically Safe)  
Part Number: MTL3046B  

Technical Specs:  
- Function: Provides a fully-floating DC supply for energizing ‘smart’ 2-wire 4/20 mA transmitters in a hazardous area, repeating the current in a separate circuit to drive a safe-area load, with support for superimposed digital communication signals (e.g., HART)  
- Number of Channels: 1, fully floating  
- Input Signal Range: 4 to 20 mA with superimposed digital signal  
- Output Signal Range: 4 to 20 mA  
- Voltage Available for Transmitter and Lines: ≥15 V at 20 mA  
- Safe-Area Load Resistance: Not specified (typically 0 to 600 Ω for similar models; confirm with datasheet)  
- Hazardous-Area Input:  
  - Maximum Voltage (Uo): 28 V  
  - Maximum Current (Io): 93 mA  
  - Maximum Power (Po): 0.65 W  
  - Permissible Inductance (Lo): 4.2 mH  
  - Permissible Capacitance (Co): 0.13 µF  
  - Permissible Inductance/Resistance Ratio (Lc/Rc): 55 µH/Ω  
- Supply Voltage: 20 to 35 V DC, 125 mA max  
- Power Dissipation: <1.5 W
- Isolation: 250 V AC between input, output, and power supply terminals  
- Operating Temperature Range: -20°C to +60°C 
- Storage Temperature Range: -40°C to +80°C
- Maximum Ambient Temperature: 60°C 
- Enclosure Rating: IP20
- Mounting: 35 mm DIN rail 
- Hazardous Area Certifications:  
  - ATEX: [EEx ia] IIC, Baseefa No. Ex 89C2112  
  - Other: Suitable for Zone 0, IIC, T4-T6 hazardous areas  
- Additional Features:  
  - Compatible with majority of ‘smart’ transmitters  
  - Provides explosion protection for equipment and wiring in all zones and explosive atmospheres  
  - Alternative to shunt-diode safety barriers where isolation is essential or a high-integrity earth is unavailable  

Dimensions: 110 x 75 x 25 mm

Weight: 180 g  

Country of Origin: United Kingdom

HS Code: 8504.40