Why Choose the Pizzato E21PERZ4551 Turn-to-Release Emergency Pushbutton?
The Pizzato E21PERZ4551 is a reliable turn-to-release emergency stop mushroom pushbutton designed for industrial safety applications, machine control panels and automation systems. Manufactured by Pizzato Elettrica, this E2 PE series safety device provides dependable emergency shutdown functionality for protecting operators and machinery in demanding industrial environments.
The E21PERZ4551 features a 40 mm yellow mushroom actuator with a turn-to-release reset mechanism. The rotary release function requires deliberate operator action before reset, helping support controlled machine restart procedures after an emergency stop event.
Designed for industrial environments, the pushbutton provides excellent durability with IP67 protection according to EN 60529 and IP69K protection according to ISO 20653. This makes it suitable for machinery and control systems exposed to dust, moisture and intensive cleaning conditions.
Key Advantages
Reliable turn-to-release emergency stop pushbutton for industrial safety systems.
Rotary release mechanism supports controlled and secure machine restart.
Large 40 mm mushroom actuator for rapid emergency operation.
High visibility yellow mushroom actuator design.
Suitable for industrial machinery, control panels and operator stations.
High protection rating for demanding industrial environments.
Key Features
Pizzato Elettrica E2 PE series emergency pushbutton.
Turn-to-release reset mechanism.
Yellow mushroom actuator.
Ø 40 mm mushroom head design.
Yellow body colour.
Without state indication element.
IP67 protection according to EN 60529.
IP69K protection according to ISO 20653.
Critical Emergency Stop Function for Machinery
Emergency stop devices are essential safety components used to immediately stop machinery when dangerous conditions occur. The Pizzato E21PERZ4551 provides operators with a dependable method of interrupting machine operation during emergency situations.
The turn-to-release mechanism requires a deliberate rotary action before resetting the emergency stop, helping improve machine safety by reducing the possibility of accidental restart during industrial operation and maintenance procedures.
The Pizzato E21PERZ4551 is a turn-to-release emergency stop pushbutton used to quickly stop industrial machinery during hazardous situations.
How is the emergency stop reset?
The device uses a turn-to-release mechanism, requiring the mushroom actuator to be rotated before returning the device to the operating position.
What size is the mushroom actuator?
The emergency stop features a 40 mm mushroom actuator for fast and easy emergency activation.
What protection rating does this pushbutton provide?
The E21PERZ4551 provides IP67 and IP69K protection, making it suitable for demanding industrial environments.
Where is this emergency stop button installed?
The device is typically installed on industrial machines, electrical control panels and operator stations as part of a safety system.
Trusted for Industrial Safety Control
Pizzato Elettrica emergency stop devices are trusted by machine builders and automation professionals for reliable safety control, durable construction and dependable performance in industrial environments.
IP Rating
IP67
Series
E2 PE Pushbuttons
Product type
Turn-to-release stop pushbutton
Actuator type
Mushroom pushbutton
Actuator diameter
40 mm
Actuator colour
Yellow
Body colour
Yellow
Release mechanism
Turn to release
Function
Latching stop control
Protection rating
IP67 (EN 60529) / IP69K (ISO 20653)
State indication
Without indicator
Mounting type
Panel mounting (22 mm hole)
HS Code
85369095
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
Priority sourcing and supply support
Flexible payment terms for qualifying organisations
Support for engineering, maintenance, and operations
500 +
Stock lines ready to ship
1,000 +
Same day dispatches
3500 +
Customers supported
28
Trusted Manfacturers
● frequently asked questions
Common questions about our products and support
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
What product ranges do you supply
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...