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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 751104 |
| Manufacturer | Pilz |
| Product Type | Safety Relay |
| Supply Voltage | 24 V dc |
| Function | Safety Gate Monitor |
| Output Configuration | 3 Normally Open (NO); 1 Normally Closed (NC) |
| Connection Type | Spring Loaded |
| Mounting Type | DIN Rail Mount |
| Dimensions | 22.5 x 120 x 100 mm |
| Approvals | CCC, CE, EAC (Eurasian), KOSHA, TÜV, cULus Listed |
| Electrical Tolerance | -15 %/+10 % |
| Frequency Range AC | Not applicable for DC units |
| Residual Ripple DC | 20 % |
| Duty Cycle | 100 % |
| Max. Inrush Current Impulse | 0.5 A Pulse duration, 5 ms |
| Input Circuit | 2 channels, 24 V dc, 50 mA per channel |
| Feedback Loop | 24 V dc, 50 mA |
| Start Circuit | 24 V dc, 50 mA |
| Min. Input Resistance | 110 Ohm at power-on |
| Mechanical Life | 10,000,000 cycles |
| Connection Type | Spring-loaded terminal |
| Conductor Cross Section | Flexible with/without crimp connector: 0.2 - 2.5 mm², 24 - 12 AWG |
| Terminal Points per Connection | 2 |
| Stripping Length | 9 mm |
| Weight | 210 g |
| Safety Characteristic Data | PL e, Category 4, SIL CL 3, PFHD 2.31E-09, SIL 3, PFD 2.03E-06, TM 20 years (as per EN ISO 13849-1:2015) |
The Pilz 751104 safety relay is a vital component designed to ensure the secure operation of machinery by providing a safety-related interruption of a safety circuit. This relay is engineered to meet the stringent requirements of EN 60947-5-1, EN 60204-1, and VDE 0113-1, making it suitable for a wide range of industrial applications.
With a 24 V dc supply voltage, this robust unit is ideal for integrating into safety systems that utilise E-STOP pushbuttons, safety gates, light grids, and safety switches with detection of shorts across contacts. The relay features a safety gate monitor and offers a configuration of 3NO (normally open) and 1NC (normally closed) contacts, ensuring flexibility and reliability in various safety control scenarios.
The spring-loaded terminals facilitate a secure and maintenance-free connection, while the compact DIN rail mount design, measuring 22.5 x 120 x 100 mm, allows for efficient use of space within control panels. The relay's design ensures ease of installation and setup, contributing to a streamlined integration process into existing safety systems.
This safety relay is an essential component for any industrial setting where the safety of machinery and personnel is paramount. Its reliable performance and compliance with safety standards make it a trusted choice for safeguarding operations.
Commonly Asked Questions
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Frequently Asked Questions
What is the voltage rating for this safety relay?
The safety relay is rated for a supply voltage of 24 V dc.
Can this safety relay be used with emergency stop buttons?
Yes, it is designed to be used with E-STOP pushbuttons, safety gates, light grids, and safety switches with detection of shorts across contacts.
What are the contact configurations for this relay?
The relay features a contact configuration of 3NO (normally open) and 1NC (normally closed).
What type of terminals does this relay have for wire connection?
It comes equipped with spring-loaded terminals for secure wire connection.
Is this relay suitable for DIN rail mounting?
Yes, it is suitable for DIN rail mounting, making it convenient for installation in control panels.
What are the dimensions of this safety relay?
The dimensions of the safety relay are 22.5 x 120 x 100 mm.
What is the utilisation category for the safety contacts of this relay?
The safety contacts of this relay fall under the utilisation category AC15 at 230 V for alternating current and DC13 at 24 V for direct current.
How should this safety relay be disposed of at the end of its service life?
At the end of its service life, the relay should be disposed of in accordance with local regulations regarding the disposal of electronic devices.
What is the importance of the mission time T_M in safety-related applications?
The mission time T_M is crucial as it relates to the expected service life of the relay in safety-related applications, and compliance with this time is necessary to maintain the safety integrity of the application.
What should be considered when using this relay at high altitudes?
When using the relay at high altitudes, it is important to consider the reduction of rated insulation voltage and rated impulse withstand voltage, as well as the maximum permitted operating height.
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