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Schmersal 24V ac/dc Safety Relay with 5 Safety Contacts and 1 Auxiliary Contact SRB324ST 24V (V.3)
Specifications
| Country of Origin | Germany |
|---|---|
| Power Consumption | 2.1W |
| Brand | Schmersal |
| Height | 121mm |
| Length | 100mm |
| Model | SRB324ST 24V (V.3) |
| IP Rating | IP40 |
| Width | 45mm |
| Mount Type | Snap-On |
| Optional | Short-circuit recognition, Manual reset with edge detection in fail-safe circuit, Automatic reset function |
| Series | SRB 324ST |
| Maximum Operating Temperature | 45°C |
| Minimum Operating Temperature | -25°C |
| Safety Category | 3 |
| Terminal type | Screw |
| Standards/Approvals | IEC/EN |
| Reset Method | Automatic |
| Coil Voltage | 24V ac/dc |
| Switching DC Voltage | 24V dc |
| Switching AC Voltage | 250V ac |
| Contact Current | 4A |
| Safety Contacts | 5 |
| Number of Auxiliary Contacts | 1 |
Key Features
- The relay features 5 safety contacts and 1 auxiliary contact for comprehensive control.
- It operates on a 24V ac/dc coil voltage with a power consumption of 2.1W.
- Snap-on DIN-rail mounting ensures easy installation and maintenance.
- Self-cleaning contacts reduce non-conductive deposit build-up for longevity.
- Compact dimensions of 100 x 45 x 121 mm and lightweight design at 240 g optimize control panel space.
- Meets IEC/EN safety standards and EN 954-1 Category 4 for fault tolerance.
- Automatic reset and optional manual reset with edge detection enhance safety operation.
Product Description
Schmersal SRB324ST 24V (V.3) Safety Relay is engineered to improve safety in automated industrial environments by providing reliable signal processing for emergency stops, position switches, and safety-light grids. Operating at 24V ac/dc with low power consumption of 2.1W, it features 5 safety contacts and 1 auxiliary contact, ensuring robust safety functions compliant with IEC/EN standards and EN 954-1 Category 4.
The device is equipped with self-cleaning contacts to prevent the accumulation of non-conductive deposits, contributing to extended operational reliability. Its ventilated housing facilitates heat dissipation, maintaining efficient operation within a temperature range of -25°C to 45°C.
Designed for snap-on DIN-rail mounting, installation and removal are quick and secure, suited for a variety of industrial automation and process handling applications such as robotics, the medical industry, and food processing.
Advanced safety features include an automatic reset function complemented by optional short-circuit recognition and manual reset with edge detection within the fail-safe circuit. This ensures the unit maintains its safety functions even amidst undetected faults, categorizing it in safety category 3.
Dimensions of the relay are 100 mm length, 45 mm width, and 121 mm height, with a lightweight 240 g profile that conserves valuable control panel space. The device provides contact current ratings of 4A and supports switching voltages up to 250V ac for AC and 24V dc for DC applications.
The relay supports signal processing of potential-free outputs for emergency stop command devices and position switches. High reliability is ensured by fail-safe contact monitoring and feedback circuits. Automatic and manual reset options enhance operational safety protocol adherence.
Compact and lightweight for efficient control panel integration. Suitable for diverse industries including robotics, food processing, and medical equipment automation. Country of origin is Germany. Discover more quality Safety Relays designed for industrial safety applications at EnvMart.
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Frequently Asked Questions
It operates on a coil voltage of 24V ac/dc.
This safety relay features 5 safety contacts and 1 auxiliary contact.
The dimensions are 100 mm in length, 45 mm in width, and 121 mm in height, with a weight of 240 g.
The power consumption is 2.1W.
The maximum operating temperature is 45°C, while the minimum is -25°C.
It is designed for snap-on DIN-rail mounting, allowing for easy installation and maintenance.
It meets IEC/EN safety standards and is classified under EN 954-1 Category 3 for fault tolerance.
It supports switching voltages up to 250V ac for AC applications and 24V dc for DC applications.
Optional features include short-circuit recognition and manual reset with edge detection in the fail-safe circuit, in addition to the automatic reset function.
The contact current rating is 4A.
It is suitable for various industries, including robotics, food processing, and medical equipment automation.
The relay uses screw terminals for connections.
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