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FR 638-W3 Pizzato Position switch for rotating levers with reset device
Pizzato FR638-W3 position switch with manual reset, 1NO + 1NC contacts, slow-action switching and IP67/IP69K protection for industrial safety applications.
£12.84
Why Choose the Pizzato FR638-W3 Position Switch?
The Pizzato FR638-W3 is a robust industrial position switch with manual reset, designed for accurate detection of mechanical movement in automation systems and safety-critical machinery. As part of the reliable Pizzato FR series, it delivers dependable switching performance and enhanced safety in demanding industrial environments.
Constructed with a durable technopolymer housing, the FR638-W3 offers excellent resistance to dust, moisture and mechanical stress. It features a PG13.5 threaded conduit entry, ensuring secure cable installation and compatibility with standard industrial wiring systems.
This model includes a slow-action contact block (1NO + 1NC) with positive opening operation and an integrated manual reset device (W3). The reset mechanism requires deliberate reactivation after actuation, preventing unintended machine restart and improving operator safety in machine guarding and interlock applications.
Key Advantages
- Reliable position detection for industrial automation systems.
- Manual reset (W3) prevents unintended restart of machinery.
- 1NO + 1NC slow-action contacts for stable switching.
- Positive opening function enhances safety compliance.
- IP67 / IP69K protection for harsh environments.
- Durable technopolymer housing ensures long service life.
Key Features
- Pizzato FR series position switch with reset.
- Manual reset device (W3 type).
- Contact configuration: 1 NO + 1 NC.
- Slow-action switching mechanism.
- Positive opening contacts for safety applications.
- PG13.5 threaded conduit entry.
- Technopolymer housing with industrial durability.
- Operating temperature range: approx. -25 to +80 °C.
Enhanced Safety with Manual Reset Switching
Position switches such as the Pizzato FR638-W3 convert mechanical movement into electrical signals, enabling precise machine control. The integrated manual reset mechanism ensures that equipment cannot restart automatically after activation, significantly improving safety and compliance with industrial safety standards.
The FR series is widely used by automation engineers and OEM machine builders due to its modular design and durability. Its compatibility with rotating lever actuators allows flexible adaptation across a wide range of industrial automation and safety applications.
Typical Applications
- Machine safety interlock systems requiring manual reset.
- Guard doors and protective enclosure monitoring.
- Industrial automation and control systems.
- Conveyor and material handling equipment.
- Packaging and production machinery.
- OEM safety systems and custom machine builds.
Technical Specifications
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| Device Type | Limit switch | |
|---|---|---|
| Housing Material | Technopolymer | |
| IP Rating | IP67 | |
| Contacts | 1NO + 1NC | |
| Actuator Type | Body only (actuator not included) | |
| Connection | PG13.5 cable entry | |
| Series | FR Series | |
| Product type | Position / limit switch with reset | |
| Contact configuration | 1 NO + 1 NC | |
| Switching function | Slow-action | |
| Reset type | Manual reset (W3) | |
| Rated current | up to 10 A | |
| Rated voltage | up to 250 V AC | |
| Protection rating | IP67 (EN 60529) / IP69K | |
| Housing material | Technopolymer | |
| Connection type | PG13.5 conduit entry | |
| Operating temperature | -25 to +80 °C | |
| Weight | approx. 0.08 kg | |
| Actuator | Not included | |
| HS Code | 85369095 |
Frequently Asked Questions
What is the Pizzato FR638-W3 used for?
This switch is used for detecting mechanical position in industrial machinery, particularly in safety systems requiring manual reset.
What does the W3 reset function mean?
The W3 function indicates a manual reset mechanism, requiring the switch to be reset before machinery can restart.
What contact configuration does this switch have?
The FR638-W3 features 1 normally open and 1 normally closed contact.
Is it suitable for safety applications?
Yes, it includes positive opening contacts, making it suitable for safety circuits and machine guarding systems.
Does it include an actuator?
No, this model is supplied without an actuator, allowing flexible configuration depending on application needs.
Trusted by Industrial Safety Engineers
Pizzato FR series position switches are widely trusted for their safety performance, durability and consistent reliability in demanding industrial automation environments.
