Switches specified for your industry
The same switch behaves differently in a PV combiner box, a crane panel and a machine tool. We start from the application — then match the actuator, contact arrangement and certification.
Four application areas, one switch partner
Each area has its own failure modes. Our recommendations come from what we see in the field, not from a generic product list.
Solar PV & renewable energy
DC isolation, firefighter safety and string protection for rooftop, C&I and utility-scale plants — including 500 V, 600 V and 1000 V DC systems.
Lifting & material handling
End-of-travel detection, emergency stop and pendant control for hoists, overhead cranes, tail lifts and stage machinery.
Industrial automation & machinery
Multi-step control, motor switching and position sensing for machine tools, packaging lines, textile machinery and doors.
Power distribution & infrastructure
Isolation, changeover and maintenance switching for switchboards, distribution boxes, buildings and grid-connected infrastructure.
Rated for dust, humidity and duty cycles
Most switch failures are not electrical. They are mechanical: a lever that drifts, a seal that hardens, a contact that welds. Our designs address those points directly, then prove them against IEC standards.
- IP65 sealing with double insulation on enclosed ranges — IEC/EN 60529.
- −25 °C to +55 °C operating range, with storage from −30 °C to +70 °C.
- Positive-opening NC contacts with double breaking for safety circuits.
- Self-extinguishing thermoplastic housings rated V0, with reinforced mechanical stops.
- AC-21A / AC-22A / AC-23A ratings published for each frame size.
What to specify, by requirement
A starting point for your bill of materials. Send us the duty and we will confirm the exact frame, contact arrangement and certificate.
| Requirement | Recommended range | Typical configuration |
|---|---|---|
| Isolate a PV string or array | RKD / RKE DC isolators, RKD.E enclosed | 2–4 pole, 500–1000 V DC, IP65 enclosure, lockable handle |
| Protect firefighters on a PV roof | YRSD-A firefighter safety switch | Wall-mounted, clearly labelled, remote trip option |
| Combine PV strings | 500 / 600 / 1000 V PV combiner boxes | Fuse protection, DC SPD, DC isolator, IP65 |
| Stop a hoist at end of travel | AFH / AFH2 / AFR / AG2 limit switches | Roller lever, spring return, positive-opening NC |
| Control a crane from the floor | APL / APLB / ADC pendant stations | 2–12 buttons, single or two-speed, emergency stop |
| Isolate a machine or panel | LW30 disconnect, LW30.3KEM / UKP enclosed | 3–4 pole, 25–100 A, door-mounted or enclosed |
| Switch between two supplies | LW26 changeover and transfer switches | 3–4 pole, centre-off or make-before-break |
| Select multiple motor steps | LW26 multi-step and motor switches | 2–8 positions, cam programming to your sequence |
Where our switches end up
Anonymised examples of the projects our partners bring to us. References can be discussed in detail under NDA.
Rooftop PV portfolio
DC isolators and firefighter safety switches supplied for a distributed rooftop programme, with lockable handles and local-language labels.
Brazil · 2024–2025
Crane fleet refurbishment
Cross limit switches and pendant stations retrofitted to an existing overhead crane fleet, matching the original mounting footprint.
Turkey · 2023–2025
Switchboard builder programme
Enclosed disconnect switches and changeover switches supplied on a scheduled release, with private-label documentation.
Poland · 2022–2025
Project profiles are illustrative of the applications we support. Client names are withheld; detailed references are available on request.
Tell us the application, we will do the selection
Share your single-line diagram, panel layout or machine specification. You will get a recommended configuration, certificate list and lead time.