Introduction
The Ovation 5A26458G05 Relay Output Base is a critical interface component within Emerson Ovation distributed control systems (DCS), designed to house and support relay output electronics modules. Acting as the physical and electrical connection point between control logic and field devices, this base enables reliable switching of external circuits in industrial environments.
Engineered for high-reliability applications, the 5A26458G05 integrates relay mounting, terminal connections, and backplane communication into a single robust assembly—ensuring stable signal transmission and efficient system operation in mission-critical processes.
Technical Specifications
| Parameter | Specification |
|---|
| Model | 5A26458G05 |
| Product Type | Relay Output Base |
| Series | Ovation Control System |
| Relay Type | Form X electromechanical relays |
| Number of Channels | 12 relay outputs |
| Contact Rating | Up to 10 A @ 240 VAC / 150 VDC |
| Voltage Rating | 24 V DC typical auxiliary power |
| Response Time | Operate ≤15 ms / Release ≤10 ms |
| Isolation | Up to 2200 V (contact to logic) |
| Mounting | DIN rail / cabinet installation |
| Interface | Ovation backplane connection |
| Operating Temperature | 0 °C to +60 °C |
| Dimensions (approx.) | ~230 × 140 × 60 mm |
| Weight | ~2.0 kg |
Applications
The 5A26458G05 Relay Output Base is widely used in industrial automation systems requiring dependable switching and control of external devices:
-
Power plant control systems (turbine, boiler, auxiliary equipment)
-
Process automation requiring relay-based output control
-
Switching motors, valves, alarms, and interlocks
-
Safety and shutdown systems requiring reliable contact outputs
-
Integration of field devices with Ovation DCS
Its robust relay interface ensures secure actuation of field equipment under demanding operational conditions.
Advantages
-
Reliable Relay Switching: Supports high-current relay outputs for industrial loads.
-
Integrated Design: Combines relay housing, terminal blocks, and backplane interface in one unit.
-
High Electrical Isolation: Protects control systems from field-side disturbances.
-
Flexible Configuration: Compatible with various relay output electronics modules for tailored applications.
-
Industrial Durability: Built for continuous operation in harsh environments with minimal maintenance.
This module provides a dependable bridge between digital control logic and physical process actuation.
Technical FAQs
1. What is the main function of the 5A26458G05?
It serves as a base unit for relay output modules, enabling connection between the control system and field devices.
2. How many relay channels are supported?
It typically supports 12 relay output channels.
3. What type of relays are used?
Form X electromechanical relays designed for industrial switching applications.
4. What is the contact rating?
Up to 10 A at 240 VAC or 150 VDC, depending on configuration.
5. Does the module provide electrical isolation?
Yes, it offers high isolation between relay contacts and system logic.
6. How is it powered?
It uses auxiliary power (typically 24 V DC) supplied through the Ovation system.
7. Can it be hot-swapped?
Yes, under controlled conditions, modules can be replaced without full system shutdown.
8. How is installation performed?
Mounted on DIN rail or within control cabinets and connected via the Ovation backplane.
9. What devices can it control?
Motors, valves, alarms, contactors, and other discrete field devices.
10. Is it compatible with other Ovation modules?
Yes, it is designed to work seamlessly with Ovation relay output electronics modules and system infrastructure.
A DCS Q Co., Ltd. - PLC and DCS Industrial Control Equipment Wholesale
