EMAS PSA025OK422S three phase measuring cam switch with 25 A rating, four position switching and compact 48 × 48 mm design for industrial measurement applications.
£34.65
The EMAS PSA025OK422S is a compact and reliable three-phase measuring rotary cam switch designed for manual selection of electrical measurement circuits in industrial control panels. As part of the trusted EMAS PSA series cam switch range, it provides precise switching operation, durable construction and dependable performance for electrical distribution, automation and monitoring applications.
This cam switch features a three-phase four-position measuring configuration, allowing operators to select measurement points in electrical systems for monitoring purposes. Its compact 48 × 48 mm panel mounting format enables straightforward installation in industrial control cabinets and measurement panels.
With a rated current of 25 A, a 690 V insulation voltage and a 45° switching angle, the EMAS PSA025OK422S provides reliable manual measurement circuit selection for industrial electrical installations.
Measuring cam switches such as the EMAS PSA025OK422S provide reliable manual selection of electrical measurement circuits by mechanically changing contact positions. This enables operators to select measurement points within industrial electrical systems while maintaining dependable switching performance.
The PSA series is designed for machine builders, panel manufacturers and automation engineers requiring compact switching components with reliable operation and flexible installation options.
| Manufacturer | EMAS |
|---|---|
| Series | PSA Series |
| Model | PSA025OK422S |
| Product type | Rotary cam switch |
| Switch type | Measuring selector switch |
| Rated current (Ie) | 25 A |
| Number of positions | 4 positions |
| Pole / Phase | 3-phase |
| Frame size | 48 × 48 mm |
| Operating angle | 45° |
| Usage category | AC21A |
| Insulation voltage (Ui) | 690 V |
| Impulse withstand voltage (Uimp) | 4 kV |
| Protection rating | IP54 |
| Contact material | AgNi |
| Mechanical life | minimum 100000 operations |
| Electrical life | minimum 50000 operations |
| Operating temperature | -25 to +80 °C |
| Cable section | 1-2.5 mm² |
| Short circuit breaking capacity (Ics) | 6 kA |
| Standard | TS EN 60947-3 |
The EMAS PSA025OK422S is a three-phase measuring cam switch used for selecting electrical measurement circuits in industrial systems.
The PSA025OK422S supports a rated current of 25 A.
The switch provides a four-position selector configuration with a 45° operating angle.
The EMAS PSA025OK422S is designed for three-phase measurement applications.
The switch is typically installed in electrical control panels, measurement panels and industrial automation systems.
EMAS PSA series cam switches are widely used in industrial automation and electrical control applications to provide reliable manual switching, durable operation and flexible installation options.
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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...