ZSL-940 Contactor 4 pole, 40 amp | Finlandia / Harvia

Finlandia / Harvia Part # ZSL-940 Contactor 4 pole, 40 amp is a heavy-duty switching component designed to manage the main power feed for compatible sauna heater systems. With its 4-pole configuration, this contactor can control multiple live conductors simultaneously, helping maintain balanced load distribution and dependable operation during extended heating cycles. Rated for up to 40 amps, it is well suited for larger or more frequently used installations where electrical demand is higher. The rugged design is built to tolerate elevated temperatures and repeated on/off cycling typical of sauna environments, supporting long service life and consistent performance. As a genuine Finlandia / Harvia part, it integrates cleanly into approved control boxes, making it an ideal choice when refurbishing existing equipment or replacing a worn contactor to help preserve safety, reliability, and proper heater function.

Flat-rate delivery of £274 covers every product and accessory to any UK mainland address; orders over £5,000 ship free. We process orders in 1–3 working days and the courier takes 3–6 working days. Large items come on a pallet and we phone to book a delivery day.

You can cancel within 14 days of delivery under the Consumer Contracts Regulations. Returns are processed within 7 working days of the goods arriving back with us. Read the full shipping policy and returns policy.