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EMAS PSA020MS336S EMAS 20 A 3 POLES INVERTER L.SPRING RETURN CAM SWIT.60

EMAS PSA020MS336S EMAS 20 A 3 POLES INVERTER L.SPRING RETURN CAM SWIT.60

EMAS PSA020MS336S inverter motor control cam switch, a 20 A three-phase spring return rotary switch designed for manual motor reversing applications.

SKU: PSA020MS336SMPN: PSA020MS336S
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List Price £33.79 ex VAT
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Manufacturer Lead Time

£33.79

Why Choose the EMAS PSA020MS336S Inverter Motor Control Cam Switch?

The EMAS PSA020MS336S is a reliable three-phase inverter motor control cam switch designed for manual forward and reverse switching of motors in industrial automation and electrical control applications. As part of the EMAS PSA series rotary cam switches, it combines compact installation, durable construction and dependable mechanical operation for machinery and control panel applications.

This switch features a spring return mechanism, allowing the selector to return automatically after operation. The positive switching action and robust design make it suitable for applications where temporary manual motor direction control is required.

With a 20 A rated current, three-phase configuration, 1-0-2 inverter switching function and 60° switching angle, the EMAS PSA020MS336S provides a practical solution for manual motor reversing control in industrial systems.

Key Advantages

  • Reliable inverter motor control cam switch for industrial applications.
  • 20 A current rating suitable for motor switching circuits.
  • Three-phase design for industrial motor control systems.
  • Spring return operation for temporary switching control.
  • 1-0-2 switching arrangement for forward, off and reverse control.
  • Compact 48 × 48 mm panel mounting format.

Key Features

  • EMAS PSA series rotary cam switch.
  • 20 A rated current.
  • 3-phase inverter motor control function.
  • 1-0-2 operating positions.
  • 60° switching angle.
  • Spring return mechanism for momentary operation.
  • Compact 48 × 48 mm mounting design.
  • AgNi contact material for reliable switching performance.

Reliable Motor Control for Industrial Machinery

Cam switches such as the EMAS PSA020MS336S provide a simple and effective method of manually controlling motor direction circuits. The spring return function enables operators to initiate switching actions while allowing the selector to return automatically when released.

The PSA series is designed for industrial applications requiring reliable switching, compact installation and long service life. The PSA020MS336S can be integrated into machinery control panels and automation systems where manual motor reversing control is required.

Typical Applications

  • Three-phase motor reversing control.
  • Industrial machinery and automation equipment.
  • Electrical control panels.
  • Conveyors and material handling systems.
  • Machine tools and production equipment.
  • OEM machine building applications.

Technical Specifications

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Operation Spring return (momentary)
Product Series Emas PSA Series
Device Type Cam Switch
IP Rating IP54
Manufacturer EMAS
Series PSA Rotary Cam Switches
Model PSA020MS336S
Product type Inverter motor control cam switch
Rated current 20 A
Number of poles 3P
Phases Three-phase
Switching positions 1-0-2
Operating function Spring return
Switching angle 60°
Frame size 48 × 48 mm
Usage category AC21A
Insulation voltage 690 V
Impulse withstand voltage 4 kV
Protection rating IP54
Mechanical life minimum 100,000 operations
Electrical life minimum 50,000 operations
Contact material AgNi

Frequently Asked Questions

What is the EMAS PSA020MS336S used for?

The EMAS PSA020MS336S is a three-phase inverter cam switch used for manual forward and reverse motor control applications.

What is the current rating of this cam switch?

The PSA020MS336S has a rated current of 20 A.

How many poles does the switch have?

This motor control cam switch features a three-pole (3P) configuration for three-phase applications.

What type of switching mechanism does this model use?

The PSA020MS336S uses a spring return mechanism for momentary motor control operation.

Where is this switch typically installed?

The switch is typically installed in industrial control panels, machinery and automation systems requiring manual motor direction control.

Trusted by Industrial Automation Engineers

EMAS PSA series cam switches are widely used in industrial control applications where reliable manual switching, compact installation and long service life are required.

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