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EMAS PSA040MS334S 40 A three-phase inverter rotary cam switch with 1-0-2 switching sequence and 60° operation designed for industrial motor control applications.
£44.90
The EMAS PSA040MS334S is a reliable industrial rotary inverter cam switch designed for manual control of three-phase motor inverter applications 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 robust 64 × 64 mm panel format and compact industrial design.
This motor control cam switch features a 1-0-2 switching sequence with a 60° operating angle, allowing operators to manually select between inverter operating positions. Its durable construction, reliable contacts and precise switching mechanism make it suitable for demanding industrial control applications.
With a rated current of 40 A, three-phase switching configuration and 60° rotary operation, the EMAS PSA040MS334S is ideal for inverter motor control systems requiring dependable manual switching and long service life.
Rotary inverter cam switches such as the EMAS PSA040MS334S provide a practical solution for manually controlling motor inverter operating states in industrial electrical systems. Their mechanical switching design enables reliable operation in machinery, automation equipment and electrical control cabinets.
The PSA series is designed for panel builders and industrial automation engineers requiring compact switching devices with dependable performance. The PSA040MS334S combines three-phase inverter control capability, precise switching positions and robust construction for industrial environments.
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| Product Series | Emas PSA Series | |
|---|---|---|
| Device Type | Cam Switch | |
| IP Rating | IP54 | |
| Manufacturer | EMAS | |
| Series | PSA Series | |
| Model | PSA040MS334S | |
| Product type | Rotary cam switch | |
| Switch type | Inverter | |
| Label / positions | 1-0-2 | |
| 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 |
The EMAS PSA040MS334S is an inverter rotary cam switch used for manual switching and control of three-phase motor inverter circuits in industrial applications.
The PSA040MS334S has a rated operational current of 40 A.
The switch provides a 1-0-2 inverter switching function for selecting motor operating positions.
The EMAS PSA040MS334S has an IP54 protection rating for industrial installation environments.
The switch is typically installed in industrial control panels, electrical cabinets and machinery control systems.
EMAS PSA series cam switches are widely used in industrial control applications to provide reliable inverter switching, manual control and machine operation solutions.
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