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RS PRO Aluminium Proximity Switch Rectangular 400V AC 0.5A Screw Mount 339-746
Specifications
| Country of Origin | United Kingdom |
|---|---|
| Brand | RS PRO |
| Length | 79.4mm |
| Model | 339-746 |
| Depth | 25.4mm |
| Width | 9.8mm |
| Mount Type | Screw |
| Housing Material | Aluminium |
| Sensing range | 15 to 20 mm |
| Series | PRA |
| Maximum Operating Temperature | 85°C |
| Minimum Operating Temperature | -20°C |
| Switching Current | 0.5A |
| Terminal type | Wire |
| Body Style | Rectangular |
| Standards/Approvals | RoHS, ISO, UKAS |
| Switching DC Voltage | 400V dc |
| Switching AC Voltage | 400V ac |
| RS PRO Reed Switch 400V ac, 2ABrand | RS PRO |
| RS PRO Reed Switch, IP67 200V ac, 0.5ABrand | RS PRO |
Key Features
- Robust sealed switch with hermetically sealed reed mechanism for extended operational life.
- Aluminium housing offers high corrosion resistance and is suitable for harsh industrial environments.
- Operates at 400V AC with a 0.5A switching current rating for reliable circuit control.
- Screw mounting and wire terminal design ensure secure installation and electrical safety.
- Sensing range of 15 to 20 mm allows precise position detection in automation applications.
- Wide operating temperature range from -20°C to 85°C supports demanding industrial conditions.
- Compliant with RoHS, ISO, and UKAS standards for industry conformity.
Product Description
RS PRO 339-746 is a high-performance aluminium proximity switch, specifically designed for industrial automation and safety systems. Featuring a robust rectangular body style, this switch is engineered with a hermetically sealed reed mechanism that delivers reliable performance and extended operational life. It excels in applications requiring precise position sensing and switching under harsh operating conditions.
The switch operates at 400V AC with a 0.5A current rating, providing efficient control for various industrial circuits. Its aluminium housing offers exceptional corrosion resistance and is ideal for environments where durability and safety are critical. The screw mounting and wire terminal design facilitate secure installation and effective electrical connectivity, minimizing risks associated with loose connections or environmental interference.
With a sensing range of 15 to 20 mm, the RS PRO proximity switch ensures accurate detection of objects or machine components, making it suitable for position sensing, linear actuators, security switching, and safety guard applications. Its operating temperature range of -20°C to 85°C enables reliable operation across a diverse set of industrial environments, from manufacturing plants to construction sites and automated production lines.
The product’s compact form factor - measuring 79.4 mm in length, 25.4 mm in depth, and 9.8 mm in width - supports versatile installation, even in space-constrained setups. The switch meets RoHS, ISO, and UKAS standards, ensuring compliance with stringent industry regulations.
Hermetically sealed reed switches such as this are valued for their long life and reliability, making them an excellent choice for critical applications in industrial automation, machine safety, security devices, and laboratory systems. RS PRO’s extensive range of Magnetic Proximity Switches and sensors provides engineers with trustworthy solutions for precise control and monitoring tasks.
Discover more industrial automation and switching solutions from RS PRO and browse EnvMart’s Switches & Sockets category for advanced position sensing and safety products.
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Frequently Asked Questions
The switching current rating of this proximity switch is 0.5A.
This model operates at 400V AC.
The sensing range of this proximity switch is 15 to 20 mm.
The dimensions of this switch are 79.4 mm in length, 25.4 mm in depth, and 9.8 mm in width.
The housing of this switch is made from aluminium, providing high corrosion resistance.
This unit has an operating temperature range from -20°C to 85°C.
This proximity switch is designed for screw mounting, ensuring secure installation.
It complies with RoHS, ISO, and UKAS standards.
This model uses a wire terminal type for electrical connections.
This proximity switch is suitable for position sensing, linear actuators, security switching, and safety guard applications.
The body style of this proximity switch is rectangular.
The country of origin for this product is the United Kingdom.
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