Brief Product Description

QUINT-DC-UPS/24DC/20, part number 3BHB016371R0002, is an industrial-grade 24VDC uninterruptible power supply module adopted in ABB automation and process control systems. Designed for DIN-rail mounting, this high-efficiency DC-UPS unit provides continuous and buffer power backup for critical 24VDC control loads during mains power fluctuation, dropout or power failure. Supporting 20A rated output current, intelligent battery management and real-time status monitoring, it guarantees non-stop power supply for PLCs, DCS controllers, safety I/O modules and field instruments. Built with rugged industrial design and outstanding EMC resistance, it ensures 24/7 stable operation in harsh factory and power plant environments and serves as a reliable spare replacement unit for industrial power backup system maintenance.

Product ID: 3BHB016371R0002

ABB model name: QUINT -DC-UPS/24DC/20-

Catalog description: QUINT -DC-UPS/24DC/20- UPS MODULE

Detailed description: QUINT -DC-UPS/24DC/20-

Replacement product ID (old): HB016371R0002

Replacement product ID (new): 3BHB051245R0001

SCIP:16027e25-d8c7-40cf-b437-ae8477644c3e Finland

Technical Information: The responsible unit for the product is preparing a replacement item. Estimated availability: May 2021.

Core Product Functions

• Industrial 24VDC uninterruptible power backup with 20A continuous rated output for control system loads
• Automatic switch to battery backup mode instantly once input DC power fails or drops below threshold
• Intelligent battery charging and maintenance management to extend battery service life and prevent overcharge/discharge damage
• Separated buffered and unbuffered output circuit design to optimize backup duration for key loads
• Real-time monitoring of input voltage, output status and battery capacity with LED visual indicators
• Configurable digital signal output for remote fault alarm and system status feedback
• Built-in over-voltage, over-current, short-circuit and over-temperature multi-protection mechanisms
• High power conversion efficiency, low heat generation for long-term full-load continuous operation
• Standard DIN rail mounting structure for quick installation in industrial control cabinets
• Strong electromagnetic interference suppression capability adapting to high-noise industrial environments

Application Scenarios

• ABB DCS, PLC and SIS safety instrumented system critical power backup cabinets
• Power plant turbine, boiler and generator auxiliary control system power protection
• Oil & gas onshore/offshore platform process control and emergency shutdown systems
• Petrochemical and chemical plant continuous production line automation power backup units
• Pulp & paper, metallurgy and water treatment industrial automation control racks
• Industrial intelligent equipment, sensor and execution unit uninterruptible power supply scenarios
• Spare replacement UPS module for maintenance, retrofit and upgrade of existing ABB control systems

FAQ (Frequently Asked Questions)

• Q: UPS fails to switch to battery mode when input power drops?
  A: Check battery connection status, battery aging degree, input voltage threshold settings and internal switching circuit integrity.
• Q: Backup duration is significantly shorter than standard specification?
  A: Inspect battery attenuation, excessive load current, poor cabinet heat dissipation or incorrect load grouping of buffered/unbuffered circuits.
• Q: Can QUINT-DC-UPS/24DC/20 be hot-swapped during system operation?
  A: Module replacement is not recommended under live load conditions. Disconnect relevant control loop loads and cut power input before replacement to avoid system reset.
• Q: Is this UPS module compatible with non-ABB industrial control systems?
  A: It supports universal 24VDC load devices; full functional matching requires verification of installation space and signal definition for third-party systems.

• Q: Is 3BHB016371R0002 available for new industrial automation projects?
  A: This legacy industrial UPS module is end-of-life. Only surplus, tested and refurbished units are provided for existing system maintenance and replacement.

3BHB016371R0002.pdf