Manufacturer: ABB Part number: ABB 07BR61R1 GJV3074376R1
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07BR61R1: Product OverviewThe 07BR61R1 is a 16-channel digital output module for ABB’s (formerly Bailey Controls) INFI 90 distributed control system. This module functions as an interface between the control logic of the system and field actuators, converting logic-level signals from the controller into isolated relay contacts capable of switching higher-power loads. Installed in an INFI 90 Process Control Unit (PCU), the module receives commands from the main processor module (e.g., a Multi-Function Processor) and energizes the appropriate relays to control field equipment.The module utilizes electromechanical relays with Form A (Single Pole Single Throw, Normally Open) contacts. Each channel is independently controlled and provides complete electrical isolation between the low-voltage logic side of the control system and the field power circuit. This isolation protects the sensitive control system electronics from voltage spikes, electrical noise, and faults that can occur in the field wiring. The module is designed for high reliability in industrial environments where switching inductive loads like motor contactors and solenoid valves is common.
ABB 07BR61R1 GJV3074376R1
07BR61R1: Technical Specifications
•• Model Number: 07BR61R1
•• Manufacturer Part Number: GJV3074376R1
•• Manufacturer: ABB (Bailey Controls)
•• Product Type: 16-Channel Relay Output Module
•• Compatible System: INFI 90 DCS
•• Number of Channels: 16
•• Contact Form: Form A (SPST-NO)
•• Contact Rating: 5A resistive @ 120V AC / 30V DC
•• Fusing: External fusing required per channel or group
•• Power Supply: +5 VDC logic power from PCU backplane
•• Operating Temperature: 0°C to 60°C
ABB 07BR61R1 GJV3074376R1
Core Features & Customer ValueThe primary value of this module is its ability to safely interface the low-voltage control system with real-world actuators. The relay contacts provide robust switching for AC and DC loads commonly found in industrial settings, such as motor starters, solenoid valves, alarm horns, and pilot lights. The physical isolation provided by the relays is a critical safety feature, preventing faults on the field side (e.g., a short circuit or voltage surge) from propagating back into the sensitive and expensive control system components.The individual channel status LEDs provide immediate visual feedback for troubleshooting. A maintenance technician can quickly identify which outputs are active, significantly reducing the mean time to repair (MTTR) during a fault condition. The requirement for external fusing, while an additional installation step, provides critical protection for both the module and the field wiring, limiting damage in the event of an overload or short circuit.Typical ApplicationsIn a boiler control system, the 07BR61R1 module is used to start and stop forced draft fans, feedwater pumps, and open/close fuel valves based on commands from the combustion control logic. The relay outputs provide the necessary isolation to handle the inductive loads of motor contactors and valve solenoids.In a chemical batching process, the module controls solenoid valves for chemical injection and motors for agitators. The 16-channel density allows a single module to control all the discrete devices for a single batch reactor, simplifying the control cabinet layout.
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