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EMAS PSA050MS335S EMAS 50 A 3 POLES STAR DELTA CAM SWIT.(O-Y-U) 60
EMAS PSA050MS335S star-delta cam switch, a 50 A three phase rotary selector switch designed for industrial motor starting and automation applications.
£79.35
Why Choose the EMAS PSA050MS335S Star-Delta Cam Switch?
The EMAS PSA050MS335S is a robust and reliable star-delta rotary cam switch designed for three-phase motor starting, industrial switching and automation applications. As part of the EMAS PSA series, it provides dependable manual motor control for electrical panels, machinery and industrial systems requiring precise star-delta switching operation.
This cam switch combines a compact design with high switching reliability, making it suitable for demanding industrial environments. The precision cam mechanism provides accurate position control, while the durable construction supports long service life in motor control and electrical panel applications.
With a rated current of 50 A, a three-phase configuration and an O–Y–U star-delta switching sequence, the PSA050MS335S is designed for controlled starting of three-phase motors. It features a 64 × 64 mm mounting format and a 60° switching angle for straightforward panel installation.
Key Advantages
- Reliable star-delta motor control cam switch designed for industrial applications.
- 50 A rated current for demanding motor switching requirements.
- Three-phase configuration for industrial motor control circuits.
- O–Y–U star-delta switching function for reduced motor starting current.
- 64 × 64 mm panel format for electrical control installations.
- Long mechanical and electrical service life for dependable operation.
Key Features
- EMAS PSA series star-delta cam switch.
- 50 A rated current.
- 3-phase configuration.
- O–Y–U star-delta selector operation.
- 60° switching angle.
- 64 × 64 mm frame size.
- High precision rotary switching mechanism.
- Suitable for industrial motor control and automation systems.
Reliable Motor Control for Industrial Systems
Rotary cam switches such as the EMAS PSA050MS335S provide a dependable manual method of controlling three-phase motor starting sequences. The star-delta switching arrangement helps reduce starting current and provides reliable motor operation in industrial applications.
The EMAS PSA series is designed for industrial automation engineers, machine builders and electrical panel manufacturers requiring compact switching devices with high durability, flexible configurations and dependable operation.
Typical Applications
- Industrial electrical control panels.
- Three-phase motor starting circuits.
- Machine tools and automation equipment.
- Pumps, fans and industrial drives.
- Motor control assemblies.
- OEM automation systems.
Technical Specifications
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| Product Series | Emas PSA Series | |
|---|---|---|
| Device Type | Cam Switch | |
| IP Rating | IP54 | |
| Manufacturer | EMAS | |
| Series | PSA Rotary Cam Switches | |
| Model | PSA050MS335S | |
| Product type | Star-delta rotary cam switch | |
| Rated current | 50 A | |
| Number of poles | 3-pole | |
| Phase | 3-phase | |
| Switch type | Star-delta | |
| Switch position | O–Y–U | |
| Switching angle | 60° | |
| Frame size | 64 × 64 mm | |
| Usage category | AC21A | |
| Insulation voltage | 690 V | |
| Impulse withstand voltage | 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 |
Frequently Asked Questions
What is the EMAS PSA050MS335S used for?
The EMAS PSA050MS335S is a star-delta rotary cam switch used for manual three-phase motor starting and industrial control applications.
What is the rated current of this cam switch?
The PSA050MS335S has a rated current of 50 A.
What switching sequence does the PSA050MS335S provide?
The switch provides an O–Y–U star-delta switching sequence for motor starting applications.
How many poles does this cam switch have?
The EMAS PSA050MS335S features a 3-pole three-phase configuration.
Where is this product typically installed?
The switch is typically installed in industrial control panels, machinery and automation systems requiring reliable manual motor control.
Trusted by Industrial Control Engineers
EMAS PSA series cam switches are widely used in industrial automation and electrical control applications where reliable switching performance and durable construction are essential.
