ABB SACO 16D3 Digital Annunciator Unit

ABB SACO 16D3 Digital Annunciator Unit Supplier & Exporter in India

ABB SACO 16D3 16-Channel Alarm Annunciator

ABB SACO 16D3 is a 16-channel digital alarm annunciator used for supervision of alarm and signalling contacts in substations, power plants and industrial control systems. It gives operators a clear visual and audible indication when a field contact changes state, helping them identify the source of an alarm without checking individual equipment manually.

Compared with a basic annunciator arrangement, the SACO 16D3 provides extensive output capability. Along with two group alarm relays, audible alarm and self-supervision outputs, it has 16 additional relay outputs that can be configured as field contact follower outputs or group alarm outputs. This makes it useful where alarm information also needs to be transferred to other control, indication or interlocking circuits.

The unit can be installed as a standalone alarm annunciator or connected through the SPA bus and fibre-optic communication arrangement to form a larger supervision, event reporting and data acquisition system. ABB lists applications in substations, power plants, industrial process plants, offshore installations and marine systems.

For requirements such as ABB SACO 16D3 replacement annunciator, SACO 16D3 spare unit, 16-channel alarm annunciator for substation panels or ABB annunciator export supply, buyers should provide the existing unit details and auxiliary supply voltage before quotation.

Technical Specifications

• Manufacturer: ABB
• Product: Digital alarm annunciator
• Model: SACO 16D3
• Product family: SACO / SPACOM
• Number of alarm channels: 16
• Alarm inputs: Contact-operated ON/OFF inputs or pulse-counting inputs
• Field contact types: Normally open or normally closed
• Edge operation: Rising edge / falling edge selectable
• Internally generated field contact voltage: 48 V DC ±20%
• Closed field contact loop current: 4 mA ±20%
• Input/reset delay selections: 5 ms, 20 ms, 100 ms, 1 s, 5 s, 20 s, 60 s or 160 s
• Maximum pulse-counting frequency: 3 Hz
• Visual indication: Individual LEDs for alarm channels
• First-out indication: Four-digit front display
• Event memory: Latest 50 events
• Fixed group alarm outputs: 2 relays
• Audible alarm output: 1 relay
• Self-supervision output: 1 relay
• Additional outputs: 16 relay outputs
• Additional outputs can be used as: Signal follower outputs or group alarm outputs
• Total output relay arrangement: 4 + 16 outputs
• Rated relay contact voltage/current: 3 A / 250 V AC or DC
• External acknowledge/reset inputs: Available
• Communication protocol: SPA bus
• Serial interface: RS-485
• Selectable communication speeds: 300, 1200, 2400, 4800 and 9600 baud
• Bus connection modules: SPA-ZC 17 or SPA-ZC 21
• Auxiliary supply option 1: 80–265 V AC/DC
• Auxiliary supply option 2: 18–80 V DC
• Power consumption: approximately 10–15 W
• Operating temperature: -10°C to +55°C
• Storage temperature: -40°C to +70°C
• Degree of protection: IP54 when correctly panel mounted
• Approximate weight: 3.1 kg
• Mounting: Flush mounting

ABB’s manual confirms the 16 alarm inputs, 16 additional relays, two group alarm outputs, audible and self-supervision outputs, 48 V DC field-contact supply and selectable delay settings.

Features

• 16-channel alarm monitoring: One unit can supervise up to 16 field alarm or signalling contacts.
• 16 additional relay outputs: Signals can be retransmitted to external indication, control or monitoring circuits.
• Flexible output arrangement: Additional outputs can work as contact follower relays or as group alarm outputs.
• First-out alarm indication: Shows which alarm was received first when several alarms occur close together.
• Visual and audible alarm: Individual LEDs provide local fault indication while a relay output can operate a horn or buzzer.
• Event recording: Stores recent events for checking alarm sequence after a disturbance.
• Front-panel programming: Common annunciator parameters can be selected without removing the unit from the panel.
• Serial programming: Settings and information can also be accessed through the communication interface.
• NO and NC contact supervision: Channels can be adapted to different types of field contacts.
• Adjustable input delays: Useful for preventing unwanted alarms from short-duration contact changes.
• Remote acknowledge and reset: External pushbuttons can be connected to the annunciator.
• Self-supervision: Internal hardware and software supervision helps identify faults within the annunciator itself.
• SPA bus communication: Allows integration with ABB SPACOM-based monitoring and control systems.
• Standalone or system operation: Suitable for a single panel as well as larger centralised alarm systems.
• ABB specifically highlights the 4 + 16 relay output arrangement, first-out indication, SPA bus communication and hardware/software self-supervision as key SACO 16D3 features.
• ABB SACO 16D3 vs SACO 16D1
• Both SACO 16D1 and SACO 16D3 are 16-channel digital annunciators, but an important difference for buyers is the output arrangement.

The SACO 16D3 provides 16 additional relay outputs that can be used as field contact follower outputs or additional group alarm outputs. This makes the 16D3 more suitable where individual alarm signals need to be retransmitted to another panel, PLC, control circuit or external indication system.

This difference should be checked carefully when a buyer is considering a SACO 16D1 to SACO 16D3 replacement, or vice versa. Matching only the number of alarm channels is not sufficient.

Internal Modules Used in SACO 16D3

ABB documentation shows that a SACO 16D3 unit is built around several plug-in modules:

• SPGU 240A1 or SPGU 48B2 power supply module
• SWIM 2A1 input/output module
• SWPM 3A1 alarm annunciator module
• SWOM 16A1 output relay module

The SWOM 16A1 module provides the additional relay output capability that distinguishes the SACO 16D3 arrangement.

These module details can also be useful when the requirement is for ABB SACO 16D3 spare modules rather than a complete annunciator.

Applications

ABB SACO 16D3 is commonly used for alarm and status monitoring in:

• Electrical substations
• Power generation plants
• Medium-voltage switchgear
• Control and protection panels
• Transformer substations
• Industrial process plants
• Generator control panels
• Main electrical control rooms
• MCC and distribution panels
• Oil and gas installations
• Offshore platforms
• Marine vessels
• Water treatment plants
• Pumping stations
• Building electrical systems
• Utility control systems
• Existing SACO annunciator replacement projects

ABB’s documentation specifically identifies power plants, substations, industrial installations, marine vessels, offshore installations, building systems and water treatment plants as SACO 16D3 applications.

ABB SACO 16D3 for Existing Installations

A good portion of SACO 16D3 requirements come from installations where an ABB annunciator is already fitted, and the buyer needs a replacement SACO 16D3, spare unit or matching annunciator for an existing control panel.

For these enquiries, it is useful to send:

• ABB SACO 16D3 nameplate photograph
• Complete product or ordering details
• Auxiliary supply voltage
• Existing power supply module, if known
• Required quantity
• Application or panel details
• End-user/project country
• Details of existing communication connection, if used

This reduces the chance of quoting a unit with the wrong auxiliary supply or interface arrangement.

Looking for ABB SACO 16D3 Digital Annunciator?

We handle enquiries for ABB SACO 16D3 16-channel digital alarm annunciators for replacement, maintenance, industrial projects and export requirements.

For an ABB SACO 16D3 annunciator quotation, SACO 16D3 replacement unit, ABB alarm annunciator for substation panels or SACO 16D3 supplier and exporter from India, send the complete unit details, auxiliary voltage, quantity and destination country.