EMAS PSA120KS135S 120A 1 pole five step rotary cam switch designed for industrial electrical switching and control applications.
£152.15
The EMAS PSA120KS135S is a robust and reliable rotary cam switch designed for industrial switching, control and circuit selection applications requiring dependable multi-position operation. As part of the advanced EMAS PSA series cam switch range, it provides a compact and durable solution for electrical panels, machinery and industrial automation systems.
This cam switch is engineered for high-current manual switching applications, offering precise rotary operation, long service life and straightforward panel integration. The PSA series combines durable construction with flexible switching configurations suitable for industrial control, power distribution and machine applications.
With a rated current of 120 A, a 1-pole five-step switching configuration and a 0-5 position arrangement, the EMAS PSA120KS135S is ideal for applications requiring manual selection through multiple circuit positions. Its 60° switching angle and 85 × 85 frame size provide controlled operation for industrial electrical systems.
Rotary cam switches such as the EMAS PSA120KS135S provide a dependable method of manually controlling and selecting electrical circuits. Their mechanical switching action allows operators to manage industrial systems with clear and precise position selection.
The EMAS PSA series is designed for panel builders, automation engineers and electrical installers requiring reliable switching components with high current capability, robust construction and long operational life.
| Manufacturer | EMAS |
|---|---|
| Series | PSA Series Cam Switches |
| Model | PSA120KS135S |
| Product type | Rotary cam switch |
| Switch type | Five-step switch |
| Current rating | 120 A |
| Pole configuration | 1-pole |
| Switching position | 0-5 |
| Switching angle | 60° |
| Frame size | 85 × 85 |
| Usage category | AC21A |
| Insulation voltage | 690 V |
| Impulse withstand voltage | 4 kV |
| Protection rating | IP54 |
| Contact material | AgNi |
| Cable section | 16 mm² |
| Operating temperature | -25 / +80 °C |
| Mechanical life | minimum 100,000 operations |
| Electrical life | minimum 50,000 operations |
| Short circuit breaking capacity | 6 kA |
| Standard | TS EN 60947-3 |
The EMAS PSA120KS135S is a rotary cam switch used for manual multi-position circuit selection and electrical control applications in industrial systems.
The PSA120KS135S has a rated current of 120 A.
The switch uses a 1-pole five-step (0-5) configuration with a 60° rotary switching action.
The PSA120KS135S features an 85 × 85 frame size for industrial panel mounting.
The product belongs to the EMAS PSA series rotary cam switch range.
EMAS PSA series cam switches are widely used in industrial automation and electrical control applications where reliable manual switching, high current capability 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...