ABB 6637636A1-15 Communication Module

Product Details

6637636A1-15 Product Description

The ABB 6637636A1 is a dedicated communication module engineered for ABB SACE series air circuit breakers, enabling seamless integration of low-voltage switchgear into modern industrial automation networks. Designed around the ABB Ekip COM platform, this module bridges the gap between field-level protection devices and upper-layer control systems — delivering real-time electrical data, trip event logs, and remote diagnostic capability across PROFIBUS DP and Modbus RTU networks. In smart factory environments where every millisecond of downtime carries operational cost, the 6637636A1 transforms a conventional circuit breaker into an intelligent, network-aware node within the plant's data architecture.

From the moment a SACE Emax 2 or SACE Tmax XT circuit breaker is energised, the 6637636A1 begins streaming structured data — current per phase, voltage, power factor, energy consumption, and protection status — upstream to SCADA platforms, energy management systems, and HMI dashboards. This continuous data flow eliminates the manual inspection cycles that slow maintenance teams and replaces them with condition-based monitoring driven by live field intelligence.

In a typical smart factory power distribution architecture, the ABB 6637636A1 sits at the intersection of the field device layer and the plant communication backbone. Consider a manufacturing facility running a PROFIBUS DP network managed by a Siemens S7-300 or S7-400 PLC as the DP master. The 6637636A1, installed directly into the Ekip trip unit slot of a SACE Emax 2 main incomer breaker, registers as a DP slave on the network. The PLC cyclically polls the module for current, voltage, and energy data, feeding this information into the plant's process control logic without any additional protocol conversion hardware.

Where the plant network runs Modbus RTU — common in facilities using Schneider Electric Modicon M340 controllers, ABB AC500 PLCs, or legacy DCS platforms — the 6637636A1 operates equally well as a Modbus slave device on an RS-485 segment. An ABB CP600 HMI panel or a Weintek cMT series touchscreen can directly query the module's register map to display real-time breaker status, load current, and alarm conditions on the operator interface without routing data through an intermediate gateway.

For facilities deploying edge computing infrastructure, the 6637636A1 data stream can be aggregated by an ABB Edge Controller or a Moxa MGate MB3000 series Modbus-to-Ethernet gateway, converting field-level RS-485 data into MQTT or OPC-UA packets for transmission to cloud-based analytics platforms or on-premise SCADA servers running ABB System 800xA or Wonderware InTouch. This architecture supports the full IIoT data chain: from the breaker's current transformer inputs, through the 6637636A1's protocol engine, across the plant network, and into the historian database — all without manual data entry or periodic meter reading.

In motor control centre (MCC) applications, the 6637636A1 works alongside ABB UMC100.3 universal motor controllers and ACS580 variable frequency drives, both of which support PROFIBUS DP natively. The PLC or SCADA system receives a unified data view of the entire MCC — breaker status from the 6637636A1, motor run/stop and fault status from the UMC100.3, and speed/torque feedback from the ACS580 — enabling coordinated load management and predictive maintenance scheduling. Alarm events from the 6637636A1, such as overcurrent trips or ground fault detections, are time-stamped and forwarded to the SCADA alarm management module, where maintenance engineers can correlate electrical events with process upsets captured by distributed I/O modules such as the ABB CI854 PROFIBUS DP interface or remote I/O racks connected via the same network segment.

Energy sub-metering is another high-value application. By deploying multiple 6637636A1 modules across feeder breakers in a facility's LV distribution board, energy managers gain granular consumption data per production line, per shift, and per machine group. This data feeds directly into ISO 50001-aligned energy management software, enabling demand response strategies, peak shaving, and carbon footprint reporting — all driven by live data from the switchgear layer rather than estimated billing figures.

Protocol Fragmentation: Many industrial sites operate mixed-protocol environments where legacy Modbus RTU devices coexist with newer PROFIBUS DP networks. The ABB 6637636A1 supports both protocols natively within the same hardware platform, eliminating the need for external protocol converters on the switchgear segment and reducing panel wiring complexity.

Data Islands in Power Distribution: Circuit breakers are traditionally invisible to SCADA and MES systems — they trip, and operators only learn of the event when a production line stops. The 6637636A1 ends this data island by making every protection event, load measurement, and status change immediately visible to the control layer. Operators receive alarm notifications in real time, and the event log stored in the Ekip trip unit provides a timestamped audit trail for root cause analysis.

Remote Monitoring and Diagnostics: For multi-site operations or unmanned substations, the 6637636A1 enables remote diagnostic access through the plant's SCADA or energy management system. Maintenance engineers can monitor breaker health indicators — contact wear, trip counter, thermal memory — from a central control room or via secure remote access, reducing the need for on-site inspection visits and enabling condition-based maintenance scheduling.

Production Line Transparency: By integrating switchgear data with process data from PLCs, drives, and sensors, plant managers gain a complete picture of energy consumption versus production output. This transparency supports OEE (Overall Equipment Effectiveness) calculations, identifies energy waste during idle periods, and provides the data foundation for smart factory digitalisation initiatives.

System Scalability: The PROFIBUS DP network supporting the 6637636A1 can accommodate up to 126 nodes on a single segment, making it straightforward to expand the monitoring network as new switchgear panels are added to the facility. Each additional SACE breaker fitted with a 6637636A1 module adds another data point to the plant's electrical monitoring architecture without requiring changes to the SCADA configuration beyond adding new device tags.

Q1: What communication protocols does the ABB 6637636A1 support, and are they simultaneously active? The 6637636A1 supports PROFIBUS DP and Modbus RTU. Protocol selection is configured via the Ekip trip unit's parameter settings. Only one protocol is active at a time per module; however, multiple modules can be deployed on the same network segment with different slave addresses, allowing mixed-device topologies on a single RS-485 or PROFIBUS cable run.

Q2: How does the 6637636A1 handle network interruptions, and will a communication loss cause the breaker to trip? The 6637636A1 is designed for communication independence from protection functions. A network interruption or loss of PROFIBUS/Modbus communication does not affect the breaker's protection behaviour — overcurrent, short-circuit, and earth fault protection remain fully operational via the Ekip trip unit's internal logic. The module will flag a communication timeout to the SCADA system, enabling operators to diagnose the network fault without any risk to the protection integrity of the switchgear.

Q3: Can the 6637636A1 be integrated with third-party SCADA systems such as Wonderware, Ignition, or Siemens WinCC? Yes. Because the 6637636A1 communicates via standard PROFIBUS DP or Modbus RTU protocols, it is compatible with any SCADA platform that supports these protocols — including Wonderware InTouch, Inductive Automation Ignition, Siemens WinCC, ABB System 800xA, and GE iFIX. Integration requires configuring the SCADA's communication driver with the module's slave address and register map, which is documented in the ABB Ekip COM technical manual.

Q4: What does the 12-month warranty cover, and is pre-shipment testing performed? Every ABB 6637636A1 unit supplied by NANKMOS is covered by a 12-month warranty from the date of shipment, covering manufacturing defects and functional failures under normal operating conditions. Prior to dispatch, each unit undergoes pre-shipment functional verification to confirm communication interface integrity and parameter configuration. In-stock units are available for immediate dispatch, and warranty claims are supported directly through NANKMOS's technical team.