2TLA010026R0000: RT6 24DC application brief: safety input logic, reset and output validation
The ABB RT6 24DC safety relay is identified by order code 2TLA010026R0000. It is intended to monitor compatible safety-device circuits and provide relay outputs for a machine-safety control architecture. The RT6 designation alone does not prove that a circuit reaches a required performance level; the complete system, device wiring, diagnostics and risk assessment remain decisive.
Key technical data
| Technical item | Verified value / selection note |
|---|---|
| ABB order code | 2TLA010026R0000 |
| Product designation | RT6 24DC |
| Device type | Universal safety relay |
| Supply | 24 V DC version; confirm exact supply and wiring |
| Outputs | 3NO + 1NC relay outputs |
| Typical monitoring | Safety devices and compatible dual-channel inputs; validate the risk assessment |
| Reset | Manual/automatic reset arrangement depends on the circuit design |
Role in the control or protection system
RT6 24DC can be considered where an existing machine requires a dedicated safety-relay function for emergency stops, guard switches or other approved safety inputs. Confirm that the chosen input arrangement matches the connected device, including whether the source provides contacts or OSSD signals. Keep safety and standard control logic clearly separated in the design documentation.
Selection and compatibility checks
Before specifying 2TLA010026R0000, check the supply voltage, input-channel arrangement, reset method, output contact use, external device monitoring and the required stop category. Do not select the relay from output count alone. Validate the safety function and achieved PL/SIL at the system level using the applicable ABB manual and machine risk assessment.
For 2TLA010026R0000, establish the equipment boundary before procurement: record the host controller or panel, the connected field device, the installed hardware and firmware revisions, the supply source, the protection method and the required operating sequence. A family-name match is not enough to confirm that 2TLA010026R0000 is a compatible replacement. Check all interfaces and accessories against the exact ABB documentation.
Commissioning and acceptance
For an RT6 24DC installation, verify terminal assignments, conductor separation, protective measures and the permitted load for every output. Confirm how contactors or other final switching devices are monitored, and test reset, fault response and restart prevention. Record the relay order code and actual circuit revision for maintenance.
A practical acceptance record for 2TLA010026R0000 should include the nameplate photograph, order code, terminal and connector condition, configuration or setting values, software revision where applicable, test equipment and measured results. If 2TLA010026R0000 is installed as part of a larger system, record the system-level response as well as the local device indication.
Related same-series designations
These 2TLA010026R0000 references identify related options or configurations, not automatic substitutes. Check each complete model code, ratings, connection method and compatibility before selection.
- 2TLA010026R0500
Procurement and maintenance handover
When requesting a quotation for 2TLA010026R0000, provide the full designation, ABB order number, quantity, installed revision, application voltage, connected load or field-device type, required approvals and delivery destination. Ask the supplier to confirm that the supplied 2TLA010026R0000 matches the stated hardware and accessory configuration. Do not substitute a neighboring family code without engineering review.
