# SEL-2440 Axion Discrete Programmable Automation Controller

> bay-control - Discrete programmable automation controller for bay control, breaker and disconnect operation, remote I/O, protection, monitoring and substation automation.

**Voltformer canonical:** https://voltformer.com/product/sel-2440-axion-discrete-programmable-automation-controller - markdown version: https://voltformer.com/product/sel-2440-axion-discrete-programmable-automation-controller.md

## Overview

- **Brand:** SEL
- **Product family:** SEL-2240 Axion
- **Application:** Discrete programmable automation controller for bay control, breaker and disconnect operation, remote I/O, protection, monitoring and substation automation.
- **Product type:** bay-control

## Protection & Control Functions

- **ANSI Functions:** 50/51, 50N/51N, 67/67N, 50BF, 25, 27/59, 81, 79
- **Transformer Windings:** N/A (Feeder / Bay)
- **Supports Transformer:** No
- **Supports Feeder:** Yes
- **Supports Breaker Control:** Yes
- **Arc Flash Protection:** No

## Digital Integration & Protocols

- **IEC 61850 Edition:** Ed2.1
- **GOOSE:** Yes
- **Sampled Values (SV):** Yes
- **Redundancy (PRP/HSR):** Yes (PRP/HSR)
- **Protocols:** IEC 61850 Ed. 2.1, DNP3, IEEE C37.118, PTPv2
- **Engineering Software:** acSELerator QuickSet

## Electrical Interface

- **Frequency:** 50/60 Hz
- **Nominal Current:** 1 A / 5 A
- **Auxiliary Supply:** 24–48 / 48–125 / 125–250 Vdc options
- **Operating Temperature:** -40 to +85 °C

## Standards

- IEC 60255
- IEC 61850-9-2
- IEEE C37.118
- UL Listed

## Sources

- https://selinc.com/products/2440/

- **Source scope:** manufacturer-family
- **Last reviewed:** 2026-09-13

Manufacturer portfolio/family source. Confirm the exact order code, guaranteed ratings and project-specific options against the current OEM datasheet before procurement or an SLD study.

Technical ratings are configuration-dependent where stated by the manufacturer. Request project-specific verification before procurement.