The 1MRK002136-A (ABB reference 1000044994) is a Contact Socket component used within compatible ABB electrical and automation equipment.
This part belongs to the connection hardware category rather than active electrical control equipment. Its primary role is to provide a secure contact interface between mating components, supporting reliable electrical connection within the associated assembly.
For industrial spare parts procurement, the ABB reference number is the key identification point because connection accessories are often designed for specific equipment families and are not interchangeable based only on appearance.

Component Purpose
The contact socket serves as a connection point within an ABB equipment assembly.
Its function is focused on maintaining the physical and electrical interface between compatible parts.
| Role | Description |
|---|---|
| Contact Interface | Provides mating connection point |
| Assembly Integration | Fits designated ABB hardware |
| Electrical Continuity | Supports signal or power path connection |
| Equipment Service | Used as a replaceable component |
Unlike relays, breakers, or controller modules, this item does not independently perform switching or processing functions.
Ordering Details
| Item | Information |
|---|---|
| Manufacturer | ABB |
| ABB Reference | 1MRK002136-A |
| Additional Reference | 1000044994 |
| Product Description | Contact Socket |
| Component Category | Electrical Connection Accessory |
| Function | Contact interface component |
| Application Type | Equipment assembly accessory |
| Installation | Component-specific mounting |
Product Classification
| Category | Position |
|---|---|
| Electrical Function | Connection accessory |
| Control Function | Not applicable |
| Communication Function | Not applicable |
| Mechanical Role | Interface component |
| Maintenance Category | Spare hardware |
Installation Context
Contact sockets are commonly found inside electrical assemblies where removable or modular connections are required.
Typical equipment environments include:
| Installation Area | Usage |
|---|---|
| Protection equipment assemblies | Internal connection |
| Electrical control units | Component interface |
| Industrial switchgear | Contact arrangement |
| Automation hardware | Connection support |
The exact installation position depends on the ABB equipment platform where the component is fitted.
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Identification Before Purchase
When sourcing this component, verify:
| Check Point | Required Information |
|---|---|
| ABB Reference | 1MRK002136-A |
| Secondary Number | 1000044994 |
| Component Name | Contact Socket |
| Existing Equipment | Compatible ABB assembly |
| Original Documentation | Recommended reference |
Connection accessories frequently share similar dimensions and descriptions, making the complete ABB identification number essential for correct matching.

Characteristics
| Feature | Description |
|---|---|
| Compact Design | Intended for equipment integration |
| Passive Component | No independent operation |
| Electrical Interface | Provides contact connection |
| Equipment-Specific | Designed for compatible ABB assemblies |
| Replaceable Part | Suitable for spare inventory |
Spare Parts Application
The 1MRK002136-A contact socket is typically maintained as a service component rather than a regularly purchased operating device.
Common procurement scenarios include:
- Repair of ABB equipment assemblies
- Restoration of damaged connection points
- Planned maintenance activities
- Long-term spare parts storage
- Support for existing installations
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