Professional-grade rotary cam switch for industrial circuit control, 25A rated at 690V AC with 3 poles, positive-opening contacts, and IP65-rated surface-mounted housing
The Legrand PR 21 Rotary Cam Switch is a robust and reliable industrial control device designed for selecting and changing the state of electrical circuits. This high-performance on/off switch is rated at 25A with a maximum voltage capacity of 690V AC, making it suitable for demanding industrial applications. The switch features 3 poles and 3 contacts with positive-opening mechanisms, ensuring safe and dependable circuit control. The device is housed in a compact 96x120mm surface-mounted box with an IP65-rated front protection, providing excellent protection against dust and water ingress.
This cam switch is engineered to meet international standards IEC EN 60947-3 and offers exceptional durability with its positive-opening contacts and double breaking of poles. The black or grey/black selector lever provides clear visual indication of the equipment state, while the faceplate includes marking for easy identification. The class II insulating box construction ensures enhanced safety and reliability in various industrial environments. The wing knob control element offers ergonomic operation, and the device can be easily integrated into control panels and electrical installations.
The PR 21 cam switch is ideal for applications requiring manual circuit selection and state changes, such as motor control, machinery operation, and electrical distribution systems. Its robust construction, combined with certified safety features and compliance with international standards, makes it a trusted choice for professional electricians and industrial installers worldwide.
Key Features
- Robust PR 21 cam mechanism for reliable on/off circuit control
- Rated 25A at 690V AC for industrial applications
- 3 poles with 3 contacts and positive-opening design
- IP65-rated front protection in 96x120mm surface-mounted box
- Class II insulating box with double breaking of poles
- Compliant with IEC EN 60947-3 international standards
- Black or grey/black selector lever with clear state indication
- Wing knob control element for ergonomic operation
- Positive-opening contacts for safe circuit management
- Compact design suitable for control panels and electrical installations
Technical Specifications
| Specification |
Value |
| Product Type | Rotary Cam Switch - On/Off Switch |
| Model | PR 21 |
| Number of Poles | 3 |
| Number of Contacts | 3 |
| Rated Current (Iu) | 25 A |
| Maximum Rated Voltage (Ue AC) | 690 V |
| Number of Switch Positions | 2 |
| Zero Position | Yes |
| Device Construction | Surface Mounted Device |
| Housing Type | Insulating Box - Class II |
| Box Dimensions | 96 x 120 mm |
| Front Shield Size | 64 x 64 mm |
| Degree of Protection (IP) | IP65 (Front Side) |
| Control Element | Wing Knob |
| Contact Type | Positive-Opening with Double Breaking |
| Selector Lever | Black or Grey/Black |
| Standards Compliance | IEC EN 60947-3 |
| Reference Number | 027722 |
| EAN Code | 3245060277222 |
| Manufacturer | Legrand |
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