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Specification & Description
| Specification | Description |
|---|---|
| Part Number | BL20-4DO-24VDC-0.5A-P |
| Manufacturer | Turck |
| Number of Channels | 4 |
| Rated Voltage | 24 VDC |
| Nominal Current from Field Supply | ≤ 25 mA |
| Nominal Current from Module Bus | ≤ 30 mA |
| Power Dissipation, Typical | ≤ 1 W |
| Output Connectivity | Screw, Tension Spring |
| Output Type | PNP |
| Output Voltage | 24 VDC |
| Output Current per Channel | 0.5 A |
| Output Delay | 0.25 ms |
| Load Type | Resistive, Inductive, Lamp Load |
| Load Resistance, Resistive | > 48 Ω |
| Load Resistance, Inductive | < 1.2 H |
| Lamp Load | < 6 W |
| Switching Frequency, Resistive | < 5000 Hz |
| Switching Frequency, Inductive | < 2 Hz |
| Switching Frequency, Lamp Load | < 10 Hz |
| Short-Circuit Protection | Yes |
| Simultaneity Factor | 1 |
| Electrical Isolation | Electronics for the field level |
| Number of Diagnostic Bits | 1 |
| Dimensions (W x L x H) | 12.6 x 74.1 x 55.4 mm |
| Approvals | CE, cULus, Zone 2, Class I, Div. 2 |
| Ambient Temperature | 0…+55 °C |
| Storage Temperature | -25…+85 °C |
| Relative Humidity | 15…95 %, No condensation allowed |
| Vibration Test | According to EN 61131 |
| Shock Test | According to IEC 60068-2-27 |
| Drop and Topple | According to IEC 68-2-31 and free fall to IEC 68-2-32 |
| Electromagnetic Compatibility | According to EN 50082-2 |
| Protection Class | IP20 |
| MTTF | 1237 years according to SN 29500 (Ed. 99) at 20 °C |
The Turck BL20-4DO-24VDC-0.5A-P is a versatile and reliable electronic module designed to enhance the functionality of automated systems. This module features four digital outputs with PNP switching, capable of handling a current of up to 0.5 A per channel. It operates at a nominal 24 VDC from the supply terminal, ensuring compatibility with a wide range of industrial control systems.
Constructed with a focus on durability and performance, the module boasts a compact design with dimensions of 12.6 x 74.1 x 55.4 mm, making it suitable for space-constrained applications. The BL20-4DO-24VDC-0.5A-P is engineered to withstand challenging industrial environments, with an operating temperature range of 0 to +55 °C and storage temperatures from -25 to +85 °C. Its robust build is complemented by a protection class of IP20, safeguarding the module's internal components from dust and other particulate matter.
The module's outputs are designed to handle resistive, inductive, and lamp loads, with specific load resistances for each type. It features short-circuit protection and a simultaneity factor of 1, ensuring reliable operation even in complex circuits. The output delay is a minimal 0.25 ms, allowing for rapid signal processing and control.
For ease of maintenance and enhanced flexibility, the BL20-4DO-24VDC-0.5A-P allows for separation of the connection level from the module electronics. This separation is facilitated by the use of purely passive base modules, which can be chosen with either tension spring or screw connection technology. The electronic modules are completely independent of the higher-level field bus, thanks to the use of gateways, providing a versatile solution for various industrial applications.
The module is equipped with LEDs that indicate status and diagnostics, offering a clear visual representation of the module's performance. Additionally, the electronics are galvanically separated from the field level via optocouplers, ensuring signal integrity and reducing the risk of electrical interference.
With a Mean Time To Failure (MTTF) of 1237 years at 20 °C, as per SN 29500 (Ed. 99), the Turck BL20-4DO-24VDC-0.5A-P is a reliable choice for long-term use in automated systems. It has received CE and cULus approvals, and is suitable for use in zone 2, Class I, Division 2 hazardous locations, demonstrating its compliance with stringent safety and quality standards.
The Turck BL20-4DO-24VDC-0.5A-P is an ideal solution for those seeking a high-quality, dependable electronic module for their automation needs. Its robust design, flexible connectivity options, and reliable performance make it a valuable addition to any industrial control system.
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Frequently Asked Questions
What are the dimensions of this safety relay?
The dimensions of the safety relay are 12.6 x 74.1 x 55.4 mm.
What type of outputs does this module have?
The module features 4 digital outputs with PNP type.
What is the maximum output current per channel for this device?
The maximum output current per channel for the BL20-4DO-24VDC-0.5A-P is 0.5 A.
Can this module be used in a high humidity environment?
Yes, the module can operate in environments with relative humidity ranging from 15% to 95%, as long as there is no condensation.
What is the ambient temperature range for the operation of this module?
The ambient temperature range for operation is from 0 to +55 °C.
Does this module have short-circuit protection?
Yes, the module is equipped with short-circuit protection.
What is the protection class of this module?
The protection class for this module is IP20.
What is the estimated MTTF for this module?
The estimated Mean Time To Failure (MTTF) for this module is 1237 years, according to SN 29500 (Ed. 99) at 20 °C.
Is this module compatible with both tension spring and screw connection technologies?
Yes, the base modules for this electronic module provide a choice of tension spring or screw connection technology.
What certifications does this safety relay hold?
The safety relay holds CE and cULus certifications, and is suitable for use in zone 2, Class I, Division 2 hazardous locations.
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