Siemens 3TK2840-2BB40 Safety Relay
安全继电器 西门子SIRIUS安全继电器3TK28402BB40提供50 V绝缘电压，500 V脉冲耐受，IP40防护，设计用于工业应用中的紧急停止单元。
Siemens SIRIUS Safety Relay 3TK28402BB40
The Siemens SIRIUS Safety Relay 3TK28402BB40 is designed specifically for use in **EMERGENCY-STOP units**, ensuring safety and protection in industrial systems. With a rated insulation voltage of 50 V and impulse voltage resistance of 500 V, this relay provides reliable operation for critical safety functions. It features a delayed action of 2 HL, 0 s and meets international safety standards, including **IEC 61508** and **GB14048.5** at 50 Hz.
Manufacturer: Siemens
Type: Safety Relay
Model Number (MNR): 3TK28402BB40
Brand Name: SIRIUS
The Siemens SIRIUS Safety Relay 3TK28402BB40 is a high-quality, reliable safety relay designed to meet critical safety standards in industrial applications, ensuring the protection of personnel and equipment in emergency situations.
| Design of the Product | For EMERGENCY-STOP units |
| Insulation Voltage Rated Value (Ui) | 50 V |
| Impulse Voltage Resistance Rated Value (Uimp) | 500 V |
| Delayed | 2 HL, 0 s |
| Standard | IEC 61508, GB14048.5 at 50 Hz |
| Type of Mounting | Screw and snap-on mounting |
| Protection Class | Housing: IP40, Terminal: IP20 |
| Operating Temperature | -25 to +60°C |
| Dimensions | 22.5 x 88 x 120 mm |
