The 1746-NO4V is an Allen Bradley SLC 500 series analog voltage output module under Rockwell Automation Bulletin 1746 platform. This analog output module is officially discontinued and supplied as spare part for legacy process control systems, compatible with 1746-A4, 1746-A7, 1746-A10 and 1746-A13 SLC chassis.

This 1746-NO4V provides 4 analog voltage output channels, supporting standard voltage ranges including 0–10V DC and ±10V DC. It is widely used to control variable frequency drives, proportional valves, positioners and other field devices that accept analog voltage control signals. The four channels are grouped into two isolated banks of two channels each, which helps reduce ground loop noise in analog control circuits. Each channel supports software calibration inside the SLC controller program to fine-tune output accuracy.

The module occupies one slot in the SLC 500 chassis and exchanges data with SLC 5/03, SLC 5/04 and SLC 5/05 processors over the 1746 backplane bus. It is equipped with a removable terminal block for convenient field wiring, so technicians can replace the module without re-terminating all connected field cables. Status LEDs on the module indicate power and fault conditions for fast on-site troubleshooting. The operating temperature range is 0°C to 60°C, designed for cabinet installation in factory and process control environments.

As an end-of-life SLC analog I/O card, brand new factory original 1746-NO4V is no longer available through Rockwell official distribution channels. All our stocked 1746-NO4V units are inspected, powered up and function tested before packing, to support emergency breakdown repair, spare part stocking and line retrofits for plants still running SLC 500 process controls. For long-term migration, Rockwell’s recommended upgrade route is CompactLogix controllers paired with Compact 5000 analog I/O modules.

It is commonly matched with other SLC analog and digital modules such as 1746-NI16I, 1746-NI4, 1746-NO4I, 1746-IA16, 1746-IB8 and 1746-OW16. Contact our sales team to check stock availability, request datasheet, wiring diagram or formal quotation for 1746-NO4V and other SLC 500 spare modules. We provide secure packaging and worldwide delivery for system integrators, process plants and automation end users.

Related search terms: 1746-NO4V datasheet, 1746-NO4V wiring diagram, 1746-NO4V vs 1746-NO4I, 1746-NO4V 0-10V output, SLC 500 analog voltage output module.

FAQ
What is 1746-NO4V?
1746-NO4V is Allen Bradley SLC 500 4-channel analog voltage output module for 0–10V DC and ±10V DC signals.

Is 1746-NO4V discontinued?
Yes, Rockwell has discontinued the 1746-NO4V, only tested surplus spare units are available on the market.

What is the difference between 1746-NO4V and 1746-NO4I?
1746-NO4V is voltage output (0-10V / ±10V); 1746-NO4I is current output (4–20mA).

How many isolated groups on 1746-NO4V?
Two banks, two channels per bank with group isolation.

Can 1746-NO4V fit in 1746-A4 chassis?
Yes, compatible with all standard 1746 SLC 500 chassis.

1746-NO4V