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- ABB
- 3BHB017693R0001
- Safety Relay
- Sweden (SE)
- 160 × 35 × 100 mm
- 0.45 kg
- Xiamen, China
- New & In Stock
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Product Overview
The ABB 3BHB017693R0001 is a Safety Relay identified with the BD 5935.48/61 24 V DC configuration. It is used in safety-related electrical control circuits where the operating status of emergency-stop devices and other safety inputs must be monitored before machinery is permitted to operate.
Unlike a conventional auxiliary relay, a safety relay is part of a defined machine safety circuit. It monitors the connected safety devices and controls its output contacts according to the configured operating conditions. If an emergency-stop condition occurs or the required input conditions are no longer satisfied, the relay changes its output state to initiate the specified safety response.
In an industrial production line, for example, an emergency-stop pushbutton may be connected to the safety relay through a monitored input circuit. When the operator activates the emergency stop, the relay evaluates the input condition and switches its safety outputs. These outputs can be connected to suitable contactors or other switching devices to stop hazardous machine movement.
The BD 5935.48/61 identification is particularly relevant when selecting a replacement. The supply voltage and relay configuration must match the original safety circuit. A relay with a similar appearance or general safety-relay designation cannot automatically replace this unit because the input arrangement, output contacts, reset method, and safety function all affect system operation.
The 3BHB017693R0001 is therefore best considered as a safety-related control component within a larger machine control arrangement rather than an ordinary switching relay.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Model | 3BHB017693R0001 |
| Product Type | Safety Relay |
| Associated Relay Type | BD 5935.48/61 |
| Product Function | Safety Circuit Monitoring |
| Rated Supply Configuration | 24 V DC |
| Application | Emergency-Stop and Safety-Related Control Circuits |
| Relay Technology | Electromechanical Safety Relay |
| Safety Circuit | Configured Safety Input and Output Circuits |
| Dimensions | 160 × 35 × 100 mm |
| Weight | 0.45 kg |
Product Features
- Safety-Related Switching: Monitors defined safety circuit conditions and controls the associated output contacts.
- 24 V DC Configuration: Corresponds to the identified BD 5935.48/61 supply configuration.
- Emergency-Stop Application: Supports safety circuits incorporating emergency-stop devices.
- Safety Input Monitoring: Evaluates connected safety input conditions before enabling the output circuit.
- Controlled Output Switching: Changes relay output states according to the monitored safety conditions.
- Machine Protection: Supports safety-related control arrangements for industrial machinery.
- Industrial Control Integration: Can be incorporated into suitable electrical control cabinets and machine safety circuits.
- Dedicated Part Identification: The complete ABB ordering number helps distinguish the required replacement component.
- Maintenance Replacement: Suitable for replacement planning where the original equipment documentation specifies this exact part.
Product Working Principle
The ABB 3BHB017693R0001 operates as part of a monitored safety control circuit. Its purpose is to evaluate safety input conditions and control the associated switching outputs.
In a typical emergency-stop application, the relay receives signals from connected emergency-stop devices or other safety-related inputs. When the required input conditions are satisfied, the relay can enable its output circuit according to the configured reset and operating logic.
The basic control sequence is:
Emergency-Stop Device / Safety Input → Safety Relay → Output Switching Circuit → Machine Control or Contactor Circuit
During normal operation, the relay monitors the connected safety circuit. If the required conditions are met, its output contacts can maintain the permitted operating state.
When an emergency-stop button is activated, the safety input circuit changes state. The relay responds by switching its safety outputs, allowing the connected switching equipment to initiate the specified machine stop.
The relay also supports the controlled restoration of operation. Depending on the configured reset arrangement, restarting may require a separate reset action rather than simply restoring the input signal.
This distinction is important in machinery applications. Removing an emergency-stop condition does not necessarily mean that the machine should restart automatically. The reset and restart sequence must follow the machine’s safety design.
The actual operating logic depends on the BD 5935.48/61 configuration and the external safety circuit. The relay must be connected and tested according to the applicable wiring arrangement.
Role in ABB Industrial Safety Control Architecture
The 3BHB017693R0001 acts as a safety-related switching component between field safety devices and the machine’s control or power-switching circuits.
It does not replace the main PLC or motor control equipment. Instead, it handles the defined safety-related switching function assigned to the relay within the overall machine architecture.
Emergency-Stop Pushbutton / Safety Guard → 3BHB017693R0001 Safety Relay → Contactor Control Circuit → Machine Equipment
| System Component | Function |
|---|---|
| Emergency-Stop Pushbutton | Provides a manual emergency-stop input |
| Safety Guard Switch | Monitors the status of a machine guard or access door |
| ABB 3BHB017693R0001 | Evaluates safety circuit conditions and controls relay outputs |
| Safety Output Circuit | Transmits the relay’s switching state |
| Contactor | Disconnects the relevant machine power circuit when required |
| Motor Drive | Controls motor operation within the machine’s control arrangement |
| Main PLC | Handles normal machine sequencing and process control |
| Machine Protection Circuit | Implements the specified safety response |
The safety relay’s output contacts, reset arrangement, and external switching devices must be evaluated together. The main PLC should not be treated as a substitute for the independent safety function unless the complete system has been engineered and validated for that purpose.
Industrial Applications
The ABB 3BHB017693R0001 is relevant to industrial machinery where a dedicated relay is specified for emergency-stop or other safety-related electrical control functions.
| Industrial Application | Typical Safety Function |
|---|---|
| Manufacturing Production Lines | Monitoring emergency-stop circuits |
| Conveyor Systems | Controlling safety-related stopping functions |
| Packaging Machinery | Monitoring operator emergency-stop devices |
| Material Handling Equipment | Supporting machine safety interlocks |
| Industrial Assembly Machines | Monitoring safety input conditions |
| Processing Equipment | Controlling defined safety-related switching circuits |
| Machine Tools | Supporting emergency-stop control arrangements |
| Automated Production Cells | Monitoring safety-related access conditions |
| Industrial Control Cabinets | Implementing relay-based safety circuits |
| Mechanical Processing Lines | Supporting controlled machine stopping functions |
Installation and Maintenance
- Verify the Complete Part Number: Confirm that the replacement is ABB 3BHB017693R0001 and matches the original equipment identification.
- Check the Relay Configuration: Verify the associated BD 5935.48/61 designation before installation.
- Confirm Supply Voltage: Check that the control circuit provides the specified 24 V DC supply.
- Inspect the Mounting Arrangement: Compare the replacement relay’s physical mounting and terminal layout with the existing installation.
- Review the Wiring Diagram: Identify the supply, safety inputs, reset connections, and output terminals before disconnecting the original relay.
- Inspect Field Wiring: Check conductors and terminal connections for loose wiring, damaged insulation, or signs of overheating.
- Check Emergency-Stop Devices: Verify the condition and wiring of connected emergency-stop pushbuttons and other safety input devices.
- Verify Output Connections: Confirm that the relay outputs are connected to the intended contactor or machine control circuit.
- Check Reset Configuration: Ensure that the reset arrangement matches the original safety circuit and does not introduce unintended automatic restarting.
- Perform Functional Testing: Test the emergency-stop and other configured safety functions under controlled commissioning conditions.
- Inspect Relay Indications: Check available operating indicators and verify that the relay responds correctly to the expected input conditions.
- Document Commissioning Results: Record the relay identification, supply voltage, terminal connections, safety function tests, and final operating status.
Because this component is part of a safety-related circuit, installation and functional validation should be carried out by qualified personnel. The machine should not return to normal operation until the complete safety function has been verified.
Compatible System Components
| Component | Function |
|---|---|
| Emergency-Stop Pushbutton | Provides a manual emergency-stop command |
| Safety Door Switch | Monitors machine guard and access-door conditions |
| Safety Interlock Switch | Detects the status of protective machine enclosures |
| Safety Contactor | Disconnects hazardous electrical power when commanded |
| Motor Starter | Controls the electrical supply to motor loads |
| Industrial PLC | Handles normal machine sequencing and process logic |
| 24 V DC Power Supply | Supplies the safety relay control circuit |
| Control Cabinet Terminal Blocks | Organize field wiring and relay connections |
| Reset Pushbutton | Provides the configured manual reset command |
Recommended Related Models
| Model / Product Family | Product Type | Typical Application |
|---|---|---|
| ABB 3BHB017693R0001 | BD 5935.48/61 Safety Relay | Emergency-stop and safety-related switching |
| DOLD BD 5935 Series | Safety Relay / Emergency-Stop Module | Monitoring emergency-stop circuits |
| ABB 3BHB017877R0001 | Protection Relay | Electrical protection applications |
| ABB 3BHB017835R0001 | KFD2-SR2-EX1 Switching Amplifier | Signal isolation and switching applications |
| ABB 3BHB017851R0001 | Transducer | Industrial measurement and signal conversion |
| ABB Sentry Safety Relay Series | Safety Relay | Machine safety and protective circuit monitoring |
Key Advantages
- Dedicated safety-related relay configuration.
- Identified 24 V DC supply arrangement.
- Suitable for defined emergency-stop control circuits.
- Monitors safety input conditions.
- Controls associated safety output switching.
- Supports integration with external contactor circuits.
- Applicable to industrial machine safety installations.
- Full part number supports accurate replacement identification.
Technical FAQs
1. What is the relationship between ABB 3BHB017693R0001 and BD 5935.48/61?
The ABB ordering number 3BHB017693R0001 is associated with the BD 5935.48/61 safety relay configuration. The BD designation identifies the relay type, while the ABB number is the reference used to identify the component in the relevant ABB equipment documentation.
2. Is the 3BHB017693R0001 suitable for a 24 V DC safety circuit?
The identified BD 5935.48/61 configuration is associated with a 24 V DC supply. Before replacement, verify the actual control voltage, terminal arrangement, and relay configuration against the original equipment wiring diagram.
3. What happens when an emergency-stop device is activated?
When the connected emergency-stop circuit changes to its activated state, the safety relay responds by changing its output state. The connected contactor or switching circuit can then initiate the defined machine stopping action. The actual response depends on the external wiring and safety design.
4. Can this safety relay be replaced with a conventional industrial relay?
A conventional relay should not be used as a direct replacement simply because its coil voltage and contact arrangement appear similar. A safety relay performs a defined safety-related function, and replacement selection must account for the required input monitoring, output behavior, reset logic, and safety performance of the complete machine circuit.