Professional 4-pole rotary cam switch with 25A capacity, IP65 protection, and positive opening contacts for reliable industrial circuit control and equipment status management.
The Legrand PR 21 Rotary Cam Switch is a professional-grade industrial control device designed for selecting and changing the status of circuits. This 4-pole, 25A on/off switch features positive opening contacts with double breaking of poles, ensuring reliable circuit isolation and protection. The device is housed in a durable 96x120mm box with IP65 degree of protection, making it suitable for various industrial and commercial applications. The switch incorporates a black or grey/black selector lever with clear marking on the faceplate for easy identification of equipment status according to the position of the selector lever.
This cam switch is a boxed Class II device that conforms to international standards IEC EN 60947-3, guaranteeing compliance with safety and performance requirements. The PR 21 range offers exceptional reliability with its contact design featuring positive opening and double breaking of poles, which provides enhanced safety and durability. With a maximum rated operation voltage of 690V AC and a rated permanent current of 25A, this switch is capable of handling demanding industrial applications. The device features 4 switch positions with a zero (off) position, allowing for precise circuit control and management.
The rotary cam switch is engineered as a surface-mounted device with a 64x64mm front shield size, making installation straightforward in existing electrical systems. The wing knob control element provides smooth operation and precise positioning. This industrial-grade switch is ideal for applications requiring frequent circuit switching, equipment status monitoring, and reliable power distribution management. The positive opening mechanism ensures that all poles open simultaneously, preventing any possibility of unintended circuit completion.
Key Features
- 4-pole on/off switch with 25A maximum rated current for reliable circuit control
- Positive opening contacts with double breaking of poles for enhanced safety and isolation
- IP65 degree of protection in 96x120mm housing suitable for industrial environments
- Conforms to international standards IEC EN 60947-3 for safety and performance
- Class II boxed device with black/grey selector lever and clear marking for easy identification
- 690V AC maximum rated operation voltage for demanding applications
- Surface-mounted design with 64x64mm front shield for straightforward installation
- Zero (off) position with 2 switch positions for precise circuit management
- Wing knob control element providing smooth operation and accurate positioning
- Positive opening mechanism ensuring simultaneous pole opening to prevent unintended circuits
Technical Specifications
| Specification |
Value |
| Product Type | Rotary Cam Switch / On-Off Switch |
| Number of Poles | 4 poles |
| Maximum Rated Current | 25 A at AC 21 |
| Maximum Rated Operation Voltage | 690 V AC |
| Number of Contacts | 4 contacts |
| Switch Positions | 2 positions with zero (off) position |
| Housing Size | 96 x 120 mm box |
| Front Shield Size | 64 x 64 mm |
| Degree of Protection | IP65 |
| Device Construction | Surface mounted device, Class II |
| Control Element | Wing knob (selector lever) |
| Selector Lever Color | Black or grey/black |
| Contact Type | Positive opening with double breaking of poles |
| Standards Compliance | IEC EN 60947-3 |
| Retraction in 0-Position | No |
| Range | PR 21 |
| Reference Number | 027723 |
| EAN Code | 3245060277239 |
| Manufacturer | Legrand |
| Application | Industrial circuit control and equipment status selection |
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