5619499-A is an ABB RX 4 Terminal Base designed for compatible ABB relay and control equipment. It is part of the RX 4 / Combiflex component arrangement and provides the terminal base used with the associated relay assembly.
The 5619499-A is identified specifically as an RX 4 Terminal Base, making the complete ABB product number important when sourcing a replacement. It is suited to maintenance and spare-parts requirements for ABB relay equipment where the existing terminal base needs to be replaced while retaining the associated assembly.

Product Identification
| Item | Details |
|---|---|
| Brand | ABB |
| Part Number | 5619499-A |
| Product Type | Terminal Base |
| ABB Type Designation | RX 4 |
| Product Description | RX 4 Terminal Base |
| Product Family | RX 4 / Combiflex |
| Application | ABB Relay & Control Equipment |
| Product Category | Control & Interface Modules |
RX 4 Terminal Base
The 5619499-A ABB RX 4 Terminal Base is a dedicated component within the RX 4 relay arrangement rather than a standalone relay. Its role is associated with the physical terminal and mounting interface of the relay assembly.
Available product references identify 5619499-A as an RX 4 Terminal Base, while ABB-related procurement records also describe it as an RX4 Combiflex Terminal Base. The part has been used in ABB relay equipment procurement for substation and control applications.
The component is also identified with the RX 4 type designation and is listed as a control-system accessory in distributor product data.
Product Features
- ABB RX 4 terminal base design
- Part number 5619499-A
- Associated with ABB Combiflex relay equipment
- Intended for compatible relay and control assemblies
- Suitable for maintenance and replacement requirements
- Identified as a four-position component base in available product references
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Product Details
| Specification | Value |
|---|---|
| Manufacturer | ABB |
| Part Number | 5619499-A |
| Type | RX 4 |
| Description | RX 4 Terminal Base |
| Series | RX 4 |
| Component Family | Combiflex |
| Product Type | Control System Accessory |
| Selling Unit | Piece |
| Product Net Weight | 0.24 kg |
The 0.24 kg product weight and control-system accessory classification are listed in distributor product data for the ABB part.
Compatible Equipment Identification
When replacing an existing terminal base, the 5619499-A part number should be checked against the original component and the associated RX 4 equipment.
The RX 4 designation alone should not be used as the purchasing reference because ABB relay systems can contain multiple individual bases, relay units, test switches, connectors, and other associated components. Keeping the complete 5619499-A identification helps distinguish this terminal base from other RX-series parts.
Available product records also identify RK9240002 as an alternate product reference associated with 5619499-A.

Spare Parts & Maintenance
5619499-A is particularly relevant for maintaining existing ABB relay installations where an individual terminal-base component needs to be replaced.
Typical procurement requirements include:
- ABB RX 4 relay maintenance
- Replacement of an existing RX 4 terminal base
- Combiflex relay assembly maintenance
- Legacy ABB relay spare-parts procurement
- Substation control equipment maintenance
- Stocking individual ABB relay connection components
For replacement purchasing, the original part number, relay type, and existing terminal arrangement should be checked before selecting the replacement component.
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