Cosa sono i relè interposti nei circuiti di controllo?
Interposing relays protect PLC and DCS interfaces by separating voltage domains, matching output capacity to field loads, and making faults easier to isolate. This guide explains selection,...
The ABB HESG447449R1 70LR01A-E is a specialized relay module engineered specifically for deployment within the ABB Procontrol P13 industrial control and distributed control system (DCS) architecture. This module provides reliable signal routing, electrical isolation, and digital switching capabilities, serving critical control and protection loops in power generation and heavy industrial facilities.
Designed to integrate directly into the Procontrol P13 hardware ecosystem, the HESG447449R1 70LR01A-E interfaces with system backplanes and local bus structures to facilitate secure communication and interlock management. Its internal circuitry ensures precise command execution and stable operational states, maintaining high system availability and signal integrity in demanding plant environments.
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Exact Model | HESG447449R1 (70LR01A-E) |
| Product Family | Procontrol P13 System |
| Product Type | Relay Module |
| System Environment | Distributed Control System (DCS) |
| Mounting Type | Procontrol P13 Rack / Backplane |
| Country of Origin | Sweden |
| Dimensions | 24.0 x 19.0 x 5.3 cm |
| Net Weight | 1.22 kg |
Global Express Shipping
Returns & Warranty



The ABB HESG447449R1 70LR01A-E is a specialized relay module engineered specifically for deployment within the ABB Procontrol P13 industrial control and distributed control system (DCS) architecture. This module provides reliable signal routing, electrical isolation, and digital switching capabilities, serving critical control and protection loops in power generation and heavy industrial facilities.
Designed to integrate directly into the Procontrol P13 hardware ecosystem, the HESG447449R1 70LR01A-E interfaces with system backplanes and local bus structures to facilitate secure communication and interlock management. Its internal circuitry ensures precise command execution and stable operational states, maintaining high system availability and signal integrity in demanding plant environments.
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Exact Model | HESG447449R1 (70LR01A-E) |
| Product Family | Procontrol P13 System |
| Product Type | Relay Module |
| System Environment | Distributed Control System (DCS) |
| Mounting Type | Procontrol P13 Rack / Backplane |
| Country of Origin | Sweden |
| Dimensions | 24.0 x 19.0 x 5.3 cm |
| Net Weight | 1.22 kg |
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
Sweden
|