Allen-Bradley 1403-MM01A — Master Module

Part number	1403-MM01A
Brand	Allen-Bradley
Description	Master Module
Manufacturer	Allen Bradley
Product Type	Master Module
Product Line	1403 Powermonitor II
Part Number	1403-MM01A
Weight	6.31 lbs (2.86 kg)
Mounting	Panel / rack mount
Device Type	Power monitoring master module
Accuracy	±0.05%
Current Input	1 A full scale (via CTs)
Voltage Input (L-N)	120–347 VAC
Voltage Input (L-L)	208–600 VAC
Supply Voltage	120/240 VAC (50/60 Hz) or 125/250 VDC
Power Consumption	Approx. 50 VA
Input Impedance	≥1 MΩ
Status Inputs	Internal 24 VDC
Relay Outputs	Two SPDT control relays
Communication	Fiber-optic link to display modules
Display Support	Up to 3 display modules

The 1403-MM01A model functions as a master module in the Allen Bradley 1403 Powermonitor II series, designed specifically for monitoring power systems. This unit can be mounted on a panel or rack and offers various voltage and current input capabilities.

Also written as

1403-MM01A/A1403-MM01A/B1403-MM01AX

Compatibility data for this part number is being verified. Send an RFQ with your equipment model and serial — our suppliers confirm fitment before quoting.

Data compiled from 1 verified source. Last reviewed 2026-08-16.