# Electrical enclosure heater Rittal SK 3105.420, aluminium, 115 V AC, 50/60 Hz, 400 W

**URL:** https://aio.lv/en/product--rittal-3105420--12400819
**Data updated:** 2026-04-29 13:49 (EEST)
**Category:** Heating Radiators
**Manufacturer:** Rittal
**Manufacturer code:** 3105420
**EAN:** 4028177662902
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 214.49 €
**Prices and availability valid until:** 2026-07-16 23:59
**Price without VAT (21%):** 177.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--rittal-3105420--12400819

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.99 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

Rittal SK 3105.420 is an electrical enclosure heater made of aluminium for maintaining internal cabinet temperature. It operates from 115 V AC at 50/60 Hz and provides 400 W heating power. Designed for use in control and distribution enclosures to prevent condensation and ensure reliable operation of electrical components.

## Long description

Rittal SK 3105.420 is an electrical enclosure heater in an aluminium housing that provides controlled heating for control and distribution cabinets. Operating from 115 V AC at 50/60 Hz with a rated heating power of 400 W, this heater is designed to maintain internal cabinet temperature above the dew point, reduce relative humidity and prevent condensation on electrical components. The unit includes a fan-assisted design to promote even heat distribution and rapid moisture control within small to medium-sized enclosures.
Advantages
The aluminium construction offers good thermal conductivity and corrosion resistance while keeping the unit lightweight. Fan-assisted air circulation improves heat transfer to internal components and helps quickly stabilise enclosure humidity. With a continuous thermal output suitable for many indoor control and distribution cabinets, the heater supports reliable operation of relays, controllers and other sensitive devices by preventing condensation and associated corrosion or short-circuits.
Suitable for
 Indoor control cabinets and distribution enclosures that require condensation prevention
 Electrical and electronic installations with limited ventilation needing temperature maintenance
 Applications where a compact, fan-assisted heater with 400 W output is appropriate
When it may not be suitable
This specific model provides 400 W of heating and is intended for indoor enclosures; it may be undersized for very large cabinets or enclosures with high heat loss. It is not designed as outdoor weatherproof heating unless installed inside a suitably rated outdoor cabinet or additional protection is provided.
Key specifications
 Housing material: aluminium
 Supply voltage: 115 V AC, 50/60 Hz
 Nominal heating power: 400 W
 Design: fan-assisted heater for improved air circulation
 Primary function: prevent condensation and regulate internal enclosure humidity
How to use
Mount the heater inside the electrical enclosure following manufacturer spacing and mounting recommendations so airflow is not obstructed. Connect the unit to a suitable 115 V AC supply and ensure the enclosure door remains closed during normal operation to maintain efficient temperature control. Use the heater in combination with thermostats or humidity controllers if specific internal setpoints are required; where available, follow local electrical codes and safety practices during installation and wiring.
What to consider before purchase
 Enclosure internal volume and heat loss to confirm that 400 W is sufficient for maintaining temperature above the dew point
 Compatibility with the supply voltage (115 V AC) and available control options such as thermostats or humidity controllers
 Whether the unit will be used in an indoor cabinet or requires additional protection for outdoor installations
Usage recommendations
For reliable condensation prevention, position the heater to promote circulation around sensitive components and combine it with a thermostat or hygrostat to avoid unnecessary energy use. Verify regular maintenance access and periodically check fan operation to ensure continued performance.

## Specifications

| Feature | Value |
|---|---|
| Weight | 0.943 kg |
| Package weight | 1200 g |
| Material | Aluminium |
| Height | 200 mm |
| Width | 103 mm |
| Depth | 103 mm |
| Power source type | AC |
| AC input frequency | 50/60 |
| AC input voltage | 115 |
| Product type | Electrical enclosure fan |

## FAQ

### How much does the Rittal SK 3105.420 enclosure heater 115 V 400 W cost, and is it available for purchase?

The price is 214.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 232 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 16.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Rittal products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Rittal service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/12400819/68690081_large.webp