ABB PPD539A102 BHE039770R0102

Product NameABB 3BHE039770R0102 PPD539A102 16-Channel Relay Digital Output Module
Product DescriptionThe ABB 3BHE039770R0102 PPD539A102 is a critical executive component specifically designed for the ABB Symphony®Plus/ST Distributed Control System (DCS). As a 16-channel relay-based digital output module, it serves as a vital bridge connecting the DCS controller and on-site industrial actuators. Its core function is to receive control instructions from the upper controller (such as the PPC905AE101) and convert these electrical signals into mechanical switching actions through internal relays. This enables it to control the start-stop of on-site equipment, the switching of valves, and the on-off of indicator lights reliably.

Featuring 16 independent Single-Pole Double-Throw (SPDT) dry-contact relays, the module is compatible with both AC and DC loads, eliminating the need for additional intermediate relays and simplifying the design of control cabinets. Each relay channel is optically isolated from the system side with an isolation voltage of up to 2500V AC, which can effectively block surges, electromagnetic interference and ground faults from the field, thus protecting the core controller from damage.

It is equipped with independent LED status indicators for each channel, allowing maintenance personnel to visually monitor the operating state of each output channel and quickly locate faults. The module supports hot-swappable maintenance. When a fault occurs during system operation, it can be replaced with power on, and the system can automatically recognize and restore operation, which greatly reduces the downtime of continuous industrial production processes. It is widely used in power plants, petrochemical plants, water treatment facilities and other industrial fields requiring high-reliability digital output control.
Product Parameters & Specifications

Parameter Category	Specific Specifications
Output Performance	16 independent SPDT relay output channels; Dry contact design; Contact capacity: 5A 250V AC (Cosφ=1) / 5A 30V DC; Maximum switching power: 1250VA AC / 150W DC; Typical response time: <10ms
Electrical Characteristics	Isolation voltage: 2500V AC (between channels and system, lasting for 1 minute); Adopts photoelectric isolation technology for each channel to resist electromagnetic interference
Physical Attributes	Modular design adapted to Symphony®ST rack installation; Compact structure suitable for industrial control cabinet layout
Power Supply	Powered by the system rack backplane; Compatible with +5V and +24V DC power supply standards
Environmental Adaptability	Operating temperature range: 0°C to 60°C; Storage temperature range: -40°C to 85°C; Protection rating: IP20, suitable for indoor industrial control environments