EMAS PSA025AK331S EMAS 25 A 3 POLES ON-OFF CAM SWIT (0-1) 60

EMAS PSA025AK331S EMAS 25 A 3 POLES ON-OFF CAM SWIT (0-1) 60

EMAS PSA025AK331S cam switch, a 25 A three-phase 0-1 rotary switch with a 60° switching angle and 48 × 48 mm frame for reliable industrial On-Off control.

SKU: PSA025AK331SMPN: PSA025AK331S
Price
List Price £27.19 ex VAT
Your Price (ex VAT)
£27.19
Manufacturer Lead Time Please contact us for a delivery time before you order
Get the best trade prices Trade exclusive

Create a trade account to unlock exclusive pricing, special offers and more.

SUBTOTAL (EX VAT) £27.19
Trade pricing is personalised to your account

Manufacturer Lead Time

£27.19

Why Choose the EMAS PSA025AK331S Cam Switch?

The EMAS PSA025AK331S is a compact and reliable 25 A three-phase On-Off cam switch designed for dependable manual switching and control in industrial electrical and automation applications. As part of the proven EMAS PSA Series, it provides a defined 0-1 switching arrangement with a 60° switching angle and a compact 48 × 48 mm frame for panel-mounted installations.

This cam switch combines high-precision switching, compact construction and long service life for dependable operation in industrial environments. Its three-phase configuration allows three circuits to be switched together from a single rotary control, while the clearly defined 0-1 positions provide straightforward manual On-Off operation.

With a rated current of 25 A, a three-phase configuration, a rated insulation voltage of 690 V and an AC-21A utilisation category, the PSA025AK331S is suitable for machinery, electrical panels and general industrial switching applications. Its 48 × 48 mm frame provides a compact format for panel-mounted control equipment.

Key Advantages

  • Compact three-phase cam switch designed for industrial applications.
  • 25 A rated current suitable for manual electrical switching.
  • Three-phase configuration enables simultaneous switching of three circuits.
  • 0-1 On-Off switching arrangement provides clear OFF and ON positions.
  • 60° switching angle provides positive rotary operation.
  • 48 × 48 mm compact frame for panel-mounted applications.

Key Features

  • EMAS PSA Series cam switch.
  • 25 A rated current.
  • Three-phase configuration.
  • 0-1 On-Off switching arrangement.
  • 60° switching angle.
  • 48 × 48 mm frame size.
  • 690 V rated insulation voltage.
  • 4 kV impulse withstand voltage.
  • AC-21A utilisation category.
  • High-precision rotary switching mechanism with long service life.

Reliable Manual Switching for Industrial Control

Cam switches such as the EMAS PSA025AK331S provide a straightforward mechanical method of switching electrical circuits between defined operating positions. The rotary mechanism gives operators clear control over the circuit state while providing positive and repeatable switching action.

The PSA Series is designed for industrial electrical control and switching duties, combining high precision, compact construction and long service life. The PSA025AK331S provides three-phase switching in a compact 48 × 48 mm format, making it suitable for machinery and electrical control panels where dependable manual control is required.

Typical Applications

  • Industrial electrical control panels.
  • Three-phase machinery On-Off switching.
  • Manual circuit control and isolation.
  • Industrial automation equipment.
  • Electrical equipment and control systems.
  • General-purpose industrial switching applications.

Technical Specifications

Tick the specs you need, then view products that match.

Operation 2 positions
Product Series Emas PSA Series
Device Type Cam Switch
IP Rating IP54
Manufacturer EMAS
Series PSA Series
Model PSA025AK331S
Product type Rotary cam switch
Switch type On-Off
Switching positions 0-1
Rated current (Ie) 25 A
Poles / phases 3-phase
Utilisation category AC-21A
Frame size 48 × 48 mm
Mechanical life minimum 100,000 operations
Electrical life minimum 50,000 operations
Operating frequency 120 mechanical / 120 electrical operations per hour
Rated insulation voltage (Ui) 690 V
Impulse withstand voltage (Uimp) 4 kV
Dielectric strength, body-contact 1,890 V AC
Dielectric strength, contact-contact 1,890 V AC
Insulation resistance minimum 10 MΩ at 500 V DC
Operating temperature -25 to +80 °C
Pollution degree 3
Protection rating IP54
Contact material AgNi
Cable connection cross-section 1–2.5 mm²
Switching angle 60°
Short-circuit breaking capacity (Ics) 6 kA
Standard TS EN 60947-3

Frequently Asked Questions

What is the EMAS PSA025AK331S used for?

The EMAS PSA025AK331S is a 25 A three-phase cam switch designed for manual On-Off switching in industrial electrical and control applications.

What is the rated current of the PSA025AK331S?

The PSA025AK331S has a rated current of 25 A.

How many phases does the PSA025AK331S switch?

The EMAS PSA025AK331S is a three-phase cam switch, allowing three electrical circuits to be controlled from the same rotary mechanism.

What switching arrangement does the PSA025AK331S use?

The switch uses a 0-1 On-Off switching arrangement, providing defined OFF and ON positions.

What is the switching angle?

The PSA025AK331S has a 60° switching angle for positive rotary operation.

Trusted for Industrial Switching Applications

EMAS PSA Series cam switches provide reliable manual circuit control for industrial machinery, electrical panels and control equipment where positive switching, compact construction and dependable service life are required.

● Service Agreements

Credit Accounts

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. 

Can you help specify the correct part?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

Do you have stock for urgent orders?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What are your delivery times and costs?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What about warranties, returns and faulty items?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

● latest blog

Discover  our latest insights and
expert advice

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

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.

LED Controls: Danfoss Drives Authorised Partner

LED Controls: Danfoss Drives Authorised Partner

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...

LED Controls: Your Complete Control Panel Solution

LED Controls: Your Complete Control Panel Solution

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...