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EMAS PSA040MS335S EMAS 40 A 3 POLES STAR DELTA CAM SWIT.(O-Y-U) 60
EMAS PSA040MS335S 40 A three-phase star-delta rotary cam switch with O-Y-U switching sequence and 60° operation designed for industrial motor starting applications.
£64.75
Why Choose the EMAS PSA040MS335S Star-Delta Cam Switch?
The EMAS PSA040MS335S is a reliable industrial star-delta rotary cam switch designed for manual control of three-phase motor starting circuits in machinery, automation systems and electrical control panels. As part of the EMAS PSA series cam switch range, it provides dependable switching performance with a compact 64 × 64 mm panel format for industrial installations.
This motor control cam switch features an O-Y-U star-delta switching sequence with a 60° operating angle, allowing controlled manual selection between off, star and delta motor starting positions. Its robust construction, precision switching mechanism and durable contacts make it suitable for industrial motor control applications.
With a rated current of 40 A, three-phase switching configuration and 60° rotary operation, the EMAS PSA040MS335S is ideal for star-delta motor starting applications requiring reliable manual switching and long service life.
Key Advantages
- Compact star-delta cam switch designed for industrial motor control applications.
- 40 A current rating suitable for three-phase motor starting systems.
- O-Y-U star-delta switching function for controlled motor starting operation.
- 60° switching operation for clear manual position selection.
- 64 × 64 mm frame size suitable for industrial panel installations.
- Durable construction with long mechanical and electrical service life.
Key Features
- EMAS PSA series cam switch.
- 40 A rated operational current.
- Star-Delta switching type.
- Three-phase switching configuration.
- O-Y-U switching positions.
- 60° switching angle.
- 64 × 64 mm frame size.
- AgNi contact material for reliable switching performance.
Reliable Star-Delta Motor Control for Industrial Systems
Star-delta cam switches such as the EMAS PSA040MS335S provide a practical solution for manually controlling motor starting sequences in industrial electrical systems. Their mechanical switching design enables reliable operation in machinery, automation equipment and motor control cabinets.
The PSA series is designed for panel builders and industrial automation engineers requiring compact switching devices with dependable performance. The PSA040MS335S combines three-phase star-delta motor control capability, precise switching positions and robust construction for industrial environments.
Typical Applications
- Industrial motor control panels.
- Three-phase motor starter systems.
- Automation equipment and production machinery.
- Electrical control cabinets.
- OEM machinery and panel-building projects.
- Industrial motor starting applications.
Technical Specifications
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| Product Series | Emas PSA Series | |
|---|---|---|
| Device Type | Cam Switch | |
| IP Rating | IP54 | |
| Manufacturer | EMAS | |
| Series | PSA Series | |
| Model | PSA040MS335S | |
| Product type | Rotary cam switch | |
| Switch type | Star-Delta | |
| Label / positions | O-Y-U | |
| Rated current (Ie) | 40 A | |
| Pole / phase configuration | 3 Phase | |
| Switching angle | 60° | |
| Frame size | 64 × 64 | |
| Usage category | AC21A | |
| Insulation voltage (Ui) | 690 V | |
| Impulse withstand voltage (Uimp) | 4 kV | |
| Protection rating | IP54 | |
| Contact material | AgNi | |
| Operating temperature | -25 to +80 °C | |
| Cable section | 4 mm² | |
| Mechanical life | 100,000 operations minimum | |
| Electrical life | 50,000 operations minimum | |
| Short circuit breaking capacity (Ics) | 6 kA | |
| Standard | TS EN 60947-3 |
Frequently Asked Questions
What is the EMAS PSA040MS335S used for?
The EMAS PSA040MS335S is a star-delta rotary cam switch used for manual control of three-phase motor starting circuits in industrial applications.
What is the current rating of this cam switch?
The PSA040MS335S has a rated operational current of 40 A.
What switching function does this model provide?
The switch provides an O-Y-U star-delta switching function for selecting motor starting positions.
What is the protection rating of this switch?
The EMAS PSA040MS335S has an IP54 protection rating for industrial installation environments.
Where is the PSA040MS335S typically installed?
The switch is typically installed in industrial control panels, electrical cabinets and motor starter systems.
Trusted by Industrial Automation Professionals
EMAS PSA series cam switches are widely used in industrial control applications to provide reliable motor switching, star-delta starting control and machine operation solutions.
