EMAS PSA032MS331S motor start cam switch, a 32 A three-phase rotary switch designed for manual motor starting and control applications.
£35.79
The EMAS PSA032MS331S is a reliable three-phase motor start cam switch designed for manual control of motor starting circuits in industrial machinery, electrical panels and automation systems. As part of the EMAS PSA series rotary cam switches, it provides dependable mechanical switching, compact installation and long service life for industrial motor control applications.
This switch features a 0-1 motor start switching configuration, allowing operators to manually energise or disconnect three-phase motor circuits through a robust rotary mechanism. Its durable construction and positive switching action make it suitable for industrial environments where reliable manual motor control is required.
With a 32 A rated current, three-phase configuration, 0-1 switching arrangement and 60° switching angle, the EMAS PSA032MS331S provides a practical solution for motor starting and on/off control applications in industrial electrical systems.
Motor start cam switches such as the EMAS PSA032MS331S provide a simple and effective method of manually controlling motor supply circuits. The rotary selector mechanism allows operators to switch motors between the off and operating positions without additional control electronics.
The PSA series is designed for industrial environments where reliability, compact installation and long service life are required. The PSA032MS331S is suitable for integration into electrical control panels, machinery and automation equipment.
| Manufacturer | EMAS |
|---|---|
| Series | PSA Rotary Cam Switches |
| Model | PSA032MS331S |
| Product type | Motor start cam switch |
| Rated current | 32 A |
| Phases | Three-phase |
| Switching positions | 0-1 |
| Switching angle | 60° |
| Frame size | 64 × 64 mm |
| Usage category | AC21A |
| Insulation voltage | 690 V |
| Impulse withstand voltage | 4 kV |
| Short circuit breaking capacity | 6 kA |
| Protection rating | IP54 |
| Mechanical life | minimum 100,000 operations |
| Electrical life | minimum 50,000 operations |
| Contact material | AgNi |
| Operating temperature | -25 to +80 °C |
The EMAS PSA032MS331S is a three-phase motor start cam switch used for manual switching of motor starting circuits.
The PSA032MS331S has a rated current of 32 A.
The switch provides a 0-1 operating arrangement for motor start and stop control.
The PSA032MS331S is designed for three-phase motor control applications.
The switch is typically installed in industrial control panels, machinery and electrical automation systems.
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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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...