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Siemens 3TH4 Safety Contactor Relay 24V DC Coil Voltage, 7 NO/1 NC Auxiliary Contacts, 10A Contact Current 3TH4271-0BB4
Specifications
| Country of Origin | China |
|---|---|
| Brand | Siemens |
| Function | Safety |
| Length | 78mm |
| Model | 3TH4271-0BB4 |
| Depth | 135mm |
| Width | 45mm |
| Mount Type | Screw |
| Series | 3TH4 |
| Minimum Operating Temperature | 888°C |
| Terminal type | Screw |
| Number of Poles | 888 |
| Contact Voltage | 230V ac |
| Coil Voltage | 24V dc |
| Normal State Configuration | 7 NO/1 NC |
| Contact Current | 10A |
| Number of Auxiliary Contacts | 8 |
| Auxiliary Contact Configuration | 7 NO/1 NC |
| Operational Current Ie | 6A |
| Control Circuit Voltage Uc | 24V dc |
| Contactor Application | Safety |
| Pole and Throw Configuration | 888 |
Key Features
- Featuring a 24V DC coil voltage for efficient control circuit activation.
- Equipped with 7 normally open and 1 normally closed auxiliary contacts for versatile circuit management.
- Designed to handle contact currents up to 10A at 230V AC for safe switching.
- Compact dimensions of 78mm height, 45mm width, and 135mm depth for convenient installation.
- Mounts securely with screw terminals and suitable for DIN rail mounting configurations.
- Operational temperature range supports industrial environments and safety applications.
- Optimizes control in motors, lighting, HVAC, and safety systems for industrial and commercial uses.
- Constructed with safety function emphasis and robust component design for long-lasting performance.
Product Description
Siemens 3TH4271-0BB4 Safety Contactor Relay incorporates a 24V DC coil voltage and is engineered for reliable performance in automation and control applications. The device supports a contact voltage rating of 230V AC and manages load currents up to 10A, making it ideal for industrial electrical circuit control.
With compact dimensions of 78mm length, 45mm width, and 135mm depth, this contactor relay supports efficient space utilization and easy installation on DIN rails using screw terminal mounts. Its operational temperature specifications and safety function design align with industrial standards and ensure consistent performance even in demanding environments.
This model features 7 normally open (NO) contacts and 1 normally closed (NC) contact, providing versatile switching combinations to handle various control circuit requirements. The auxiliary contact configuration optimizes circuit management across multiple applications.
Typical applications include motor control circuits, lighting system switching in commercial buildings, and integration within heating, ventilation, and air conditioning (HVAC) systems. Furthermore, the safety designing ensures secure operation under varying industrial conditions, protecting both equipment and personnel.
Featuring a 24V DC coil voltage for efficient control circuit activation. Equipped with 7 normally open and 1 normally closed auxiliary contacts for versatile circuit management. Designed to handle contact currents up to 10A at 230V AC for safe switching.
Compact and DIN rail mountable with screw terminal connections. Operates reliably across defined temperature ranges within industrial environments. Used extensively in motor control, lighting, HVAC, and safety systems. Compact size enables efficient installation in control cabinets.
Supports safety function configurations to reduce risk of accidental contact. Explore EnvMart’s extensive range of Siemens Contactor Relays and related automation control gear for industrial and commercial applications.
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Frequently Asked Questions
The coil voltage of this model is 24V DC, which is designed for efficient control circuit activation.
It features 7 normally open (NO) contacts and 1 normally closed (NC) contact, providing versatile circuit management options.
This contactor relay is designed to handle contact currents up to 10A at 230V AC for safe switching.
The dimensions are 78mm in length, 45mm in width, and 135mm in depth, making it compact for installation.
It mounts securely using screw terminals and is suitable for DIN rail mounting configurations.
The operational temperature specifications support industrial environments, although specific temperature limits are not detailed.
This model is typically used in motor control circuits, lighting system switching, and HVAC systems.
The contact voltage rating is 230V AC, suitable for various industrial electrical circuit controls.
This model functions as a safety contactor relay, emphasizing secure operation in control circuits.
It uses screw terminal connections for secure and reliable electrical connections.
The operational current rating is 6A, which is important for ensuring proper circuit performance.
This contactor relay belongs to the 3TH4 series, which is designed for automation and control applications.
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