
Description
Description
The Helo Terminal Block NLWD 1-1 is a genuine replacement part for use in Helo electric sauna heaters. It is sold individually under part number SP7812550, and keeping the original connection hardware in place is the right way to preserve a heater’s safety and reliability. Replacement must be carried out by a qualified electrician with the supply isolated at the fuse panel first.
Features
Technical Specification
| Type | Terminal block |
| Model | NLWD 1-1 |
| Compatibility | Helo electric sauna heaters |
| Part number | SP7812550 |
Brand
Founded in 1919, Helo was the first manufacturer of electric sauna heaters; its heaters are handcrafted in Hanko, Finland, and the company is part of the Sauna360 group.
Ordering note
Check your heater model and its service documentation to confirm the NLWD 1-1 is the correct terminal block before ordering.
Downloads
Delivery & Returns
Delivery
We offer fast and reliable delivery to customers across the UK and beyond. For full details on shipping times and costs, please review our delivery policy.
Returns
We offer hassle-free returns within 30 days of purchase, so you can shop with complete confidence. For details, see our returns policy.
Warranty & Quality Promise
We are committed to delivering products of the highest quality, for details surrounding warranty please contact us.
Description
The Helo Terminal Block NLWD 1-1 is a genuine replacement part for use in Helo electric sauna heaters. It is sold individually under part number SP7812550, and keeping the original connection hardware in place is the right way to preserve a heater’s safety and reliability. Replacement must be carried out by a qualified electrician with the supply isolated at the fuse panel first.
Features
| Type | Terminal block |
| Model | NLWD 1-1 |
| Compatibility | Helo electric sauna heaters |
| Part number | SP7812550 |
Brand
Founded in 1919, Helo was the first manufacturer of electric sauna heaters; its heaters are handcrafted in Hanko, Finland, and the company is part of the Sauna360 group.
Ordering note
Check your heater model and its service documentation to confirm the NLWD 1-1 is the correct terminal block before ordering.
Delivery
We offer fast and reliable delivery to customers across the UK and beyond. For full details on shipping times and costs, please review our delivery policy.
Returns
We offer hassle-free returns within 30 days of purchase, so you can shop with complete confidence. For details, see our returns policy.
Warranty & Quality Promise
We are committed to delivering products of the highest quality, for details surrounding warranty please contact us.









