Loop Power Supplies 4-20 mA

lifetime warranty
  • Lifetime Warranty on API Modules
  • Status LED
  • Full I/O/Power Isolation

Click on model numbers below
for data sheets
Literature and Links

API product brochure

Options & accessories

Cross reference
Reference Info

Ohm's Law
Installation FAQs
Sink vs Source

How to Order
  1. Select a model
  2. See data sheet for ordering info and power options
  3. Request an API price list via chat
  4. 2 day to 4 week day typical lead time (USA customers)
  5. To place your order
Model Input/Output Features Product
Loop Power Supplies
DIN Style
I/O Isolation

Sineax B 812

B 812 Instructions
4-20 mA, 18 to 25.5 VDC
Source resistance: 330 Ω

4-20 mA, 17 VDC no load
Permitted load: 750 Ω, 550 Ω with HART

Specify power: 60-265 VAC/VDC or
20-70 VAC/VDC
  • 1 year warranty
  • 3.6 kV input, output, and power isolation
  • Red LED for open and short circuit fault detection
  • Designed for HART protocol
Hart logo

Sineax B812
B 812
Discontinued Power Supplies
API 9046 G CH API bipolar power supplies (discontinued)
API 9046
Regulated DC Power Supplies (discontinued)
Sineax B 840
Sineax B 840 Instructions

4 channel 4-20 mA loop supply (discontinued)