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E2 1PU2R521L33 Pizzato Spring-return yellow flush pushbutton with marking
Pizzato E21PU2R521L33 is an IP67 and IP69K spring-return industrial pushbutton actuator featuring a yellow 20 mm flush button with L33 engraving and a black bezel.
£3.88
Why Choose the Pizzato E21PU2R521L33 Spring-Return Flush Pushbutton?
The Pizzato E21PU2R521L33 is a compact and robust spring-return flush pushbutton actuator designed for industrial machinery, operator stations and automation control panels. As part of the Pizzato E2 PU EROUND series, it provides dependable momentary control with a low-profile panel interface.
This actuator features a yellow Ø 20 mm flush button with Pizzato L33 engraving for clear function identification. Its spring-return mechanism automatically returns the button to its normal position when released, making it suitable for momentary machine commands and control-circuit inputs.
With IP67 and IP69K protection, the E21PU2R521L33 is engineered for industrial environments exposed to dust, water and high-pressure cleaning. Its black bezel and plastic fixing ring support straightforward panel installation, while the modular E2 design enables compatible Pizzato contact blocks to be selected for the required switching circuit.
Key Advantages
- Spring-return action provides reliable momentary operation.
- Flush actuator profile creates a compact, low-profile interface.
- Yellow Ø 20 mm button with L33 engraving.
- IP67 and IP69K protection for demanding industrial environments.
- Mechanical endurance of up to 15 million operating cycles.
- Modular design accepts compatible Pizzato E2 contact blocks.
Key Features
- Pizzato E2 PU EROUND series pushbutton actuator.
- Momentary spring-return operating function.
- Flush button profile.
- Ø 20 mm yellow button.
- Actuator supplied with L33 engraving.
- Black external bezel.
- Plastic fixing ring for panel installation.
- IP67 according to EN 60529.
- IP69K according to ISO 20653.
Reliable Momentary Control for Industrial Machinery
A spring-return pushbutton remains operated only while manual pressure is applied and automatically returns to its normal position when released. This action is ideal for commands that require a momentary electrical signal, such as machine initiation, acknowledgement, reset or process-control inputs.
The yellow actuator provides high visual contrast, while the flush profile creates a streamlined panel surface and helps reduce unintended operation. Compatible Pizzato E2 contact blocks can be fitted to provide the normally open or normally closed contact arrangement required by the machine circuit.
Typical Applications
- Industrial machinery control panels.
- Operator stations and control consoles.
- Momentary machine-command functions.
- Conveyor and material-handling systems.
- Packaging and processing machinery.
- Washdown and high-cleanliness production environments.
Technical Specifications
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| Device Type | Flush Pushbutton | |
|---|---|---|
| Operation | Spring return (momentary) | |
| Product Series | Pizzato E2 / EROUND | |
| Mounting Diameter | 22 mm | |
| IP Rating | IP67, IP69K | |
| Colour | Yellow | |
| HS Code | 85369095 | |
| Manufacturer | Pizzato Elettrica | |
| Series | E2 PU EROUND | |
| Model | E21PU2R521L33 | |
| Product type | Spring-return flush pushbutton actuator | |
| Operating function | Spring-return / momentary | |
| Button profile | Flush | |
| Button diameter | 20 mm | |
| Button colour | Yellow | |
| Button engraving | Pizzato code L33 | |
| External bezel colour | Black | |
| Fixing ring | Plastic | |
| Protection rating | IP67 / IP69K | |
| Ambient temperature | -25 °C to +80 °C | |
| Mechanical endurance | 15 million operating cycles | |
| Safety parameter B10D | 30 million cycles | |
| Maximum operating frequency | 3,600 cycles/hour | |
| Actuating force at travel limit | 3.7 N without contact blocks | |
| Maximum travel | 5 mm | |
| Fixing-ring tightening torque | 2–2.5 Nm | |
| Mounting type | Panel mounting with compatible E2 mounting adaptor | |
| Contact blocks | Ordered separately |
Frequently Asked Questions
What is the Pizzato E21PU2R521L33 used for?
It provides a momentary manual command for industrial machinery, operator stations and automation control panels.
Does this pushbutton have maintained or spring-return operation?
The E21PU2R521L33 has a spring-return action, so it automatically returns to its normal position when released.
What size and colour is the pushbutton?
It has a yellow flush actuator measuring 20 mm in diameter and supplied with Pizzato L33 engraving.
What protection rating does the E21PU2R521L33 provide?
The actuator is rated IP67 according to EN 60529 and IP69K according to ISO 20653.
Are electrical contact blocks included?
The E21PU2R521L33 is a modular actuator, and compatible Pizzato E2 contact blocks and mounting components are selected separately for the required circuit.
Trusted Industrial Control from Pizzato
Pizzato E2 EROUND pushbuttons are engineered to provide reliable manual control, flexible modular installation and resistance to demanding industrial operating conditions.
