EMAS PSA020KS133S EMAS 20 A 1 POLE THREE STEPS CAM SWIT (0-3) 60

Q: What is the current rating of this cam switch?

The PSA020KS133S has a rated current of 20 A.

Q: What switching function does the PSA020KS133S provide?

The switch provides a three-step 0-3 switching function with a single-pole configuration.

Q: What is the protection rating of this cam switch?

The PSA020KS133S has an IP54 protection rating, making it suitable for industrial environments.

EMAS PSA020KS133S rotary cam switch, a 20 A single-pole three-step 0-3 switching device designed for industrial electrical control applications.

SKU: PSA020KS133SMPN: PSA020KS133S

List Price £23.79 ex VAT

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£23.79

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Manufacturer Lead Time

£23.79

Why Choose the EMAS PSA020KS133S Cam Switch?

The EMAS PSA020KS133S is a robust and reliable rotary cam switch designed for industrial electrical control and switching applications. Part of the EMAS PSA Series cam switch range, it provides dependable multi-position manual switching for control panels, machinery and automation systems.

This cam switch features a three-step switching function (0-3) with a single-pole configuration and a 60° operating angle. Its compact 48 × 48 mm panel mounting format allows straightforward installation while providing reliable switching performance in demanding industrial environments.

With a rated current of 20 A and an AC21A utilisation category, the PSA020KS133S is suitable for applications requiring dependable manual step switching, long service life and compact industrial control solutions.

Key Advantages

Compact rotary cam switch designed for industrial applications.
20 A rated current suitable for industrial switching circuits.
Three-step 0-3 switching function for flexible manual control.
Single-pole configuration for straightforward circuit switching.
60° switching operation for precise operator control.
Durable construction designed for reliable long-term performance.

Key Features

EMAS PSA Series cam switch.
20 A rated operational current.
Three-step switching function (0-3).
Single-pole configuration.
60° operating angle.
48 × 48 mm frame size.
High precision switching mechanism.
Suitable for industrial control panels and automation equipment.

Reliable Multi-Position Switching for Industrial Systems

Rotary cam switches such as the EMAS PSA020KS133S provide a simple and reliable method of manually controlling electrical circuits through multiple predefined positions. The cam-operated mechanism enables accurate switching while maintaining dependable electrical performance in industrial equipment.

The PSA Series is designed for machine builders, panel manufacturers and automation engineers requiring compact switching devices with reliable operation, long mechanical life and straightforward installation.

Typical Applications

Industrial electrical control panels.
Machine control systems.
Automation equipment.
Electrical switching applications.
Manufacturing machinery.
Industrial electrical installations.

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	PSA020KS133S
Product type	Rotary cam switch
Switch type	3 Steps
Switch position	0-3
Poles	1 pole
Rated current (Ie)	20 A
Operating angle	60°
Frame size	48 × 48 mm
Utilisation category	AC21A
Insulation voltage (Ui)	690 V
Impulse withstand voltage (Uimp)	4 kV
Protection rating	IP54
Contact material	AgNi
Mechanical life	Minimum 100,000 operations
Electrical life	Minimum 50,000 operations
Operating temperature	-25 to +80 °C
Pollution degree	3
Cable section	1–2.5 mm²
Short circuit breaking capacity (Ics)	6 kA
Mounting type	Panel mounting

Frequently Asked Questions

What is the EMAS PSA020KS133S used for?

The EMAS PSA020KS133S is a rotary cam switch used for manual multi-position switching and control of electrical circuits in industrial applications.

What is the current rating of this cam switch?

The PSA020KS133S has a rated current of 20 A.

What switching function does the PSA020KS133S provide?

The switch provides a three-step 0-3 switching function with a single-pole configuration.

What is the protection rating of this cam switch?

The PSA020KS133S has an IP54 protection rating, making it suitable for industrial environments.

Where is this cam switch typically installed?

The switch is typically installed in electrical control panels, machinery and industrial automation systems.

Trusted by Industrial Control Professionals

EMAS PSA Series cam switches are widely used in industrial automation and electrical control applications where reliable manual switching, compact design and long service life are essential.

Operation	2 positions
Product Series	Emas PSA Series
Device Type	Cam Switch
Manufacturer	EMAS
Series	PSA Series
Model	PSA020KS133S
Product type	Rotary cam switch
Switch type	3 Steps
Switch position	0-3
Poles	1 pole
Rated current (Ie)	20 A
Operating angle	60°
Frame size	48 × 48 mm
Utilisation category	AC21A
Insulation voltage (Ui)	690 V
Impulse withstand voltage (Uimp)	4 kV
Protection rating	IP54
Contact material	AgNi
Mechanical life	Minimum 100,000 operations
Electrical life	Minimum 50,000 operations
Operating temperature	-25 to +80 °C
Pollution degree	3
Cable section	1–2.5 mm²
Short circuit breaking capacity (Ics)	6 kA
Mounting type	Panel mounting
IP Rating	IP54

UK delivery

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