# Zamel STM-100-40 Modular Installation Contactor 100A 4NO 230V AC

**URL:** https://aio.lv/en/product--zamel-ext10000302--12458771
**Data updated:** 2026-05-18 09:28 (EEST)
**Category:** Power Sockets
**Manufacturer:** ZAMEL
**Manufacturer code:** EXT10000302
**EAN:** 5903669487432
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 94.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 78.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--zamel-ext10000302--12458771

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 06.07.2026 | free |
| Pickup points | 09.07.2026 | 1.99 EUR |
| Courier delivery to door | 09.07.2026 | 4.99 EUR |

## Summary description

The Zamel STM-100-40 is a high-capacity modular installation contactor designed for reliable electrical circuit switching. Featuring a 100A rated current and 4 normally open (4NO) contacts, it operates on a 230V AC control voltage. This device is ideal for industrial and residential electrical distribution systems, ensuring efficient control of lighting, heating, and motor circuits in standard DIN-rail mounted configurations.

## Long description

The Zamel STM-100-40 is a high-capacity modular installation contactor engineered for robust electrical circuit switching in demanding environments. With a rated current of 100A and four normally open (4NO) contacts, this device provides reliable control for heavy-duty electrical loads. It is designed for seamless integration into standard DIN-rail distribution boards, making it a versatile component for both industrial and residential electrical infrastructure.
Advantages
This contactor stands out due to its high switching capacity and durable construction, which ensures long-term operational stability even under frequent usage. The modular design allows for quick and efficient installation in standard electrical cabinets, saving time during assembly. By utilizing 230V AC control voltage, it integrates easily into existing control systems, providing a dependable solution for managing high-power circuits without the need for complex auxiliary equipment.
Suitable for
Industrial automation and control systems
Large-scale lighting control in commercial buildings
Heating and ventilation circuit management
Motor control applications
Residential electrical distribution boards
When it may not be suitable
This device is not intended for use in circuits exceeding its 100A rated current capacity or for applications requiring DC control voltage. It is also not suitable for environments with extreme moisture or corrosive atmospheres unless housed in an appropriate protective enclosure.
Key specifications
Rated current: 100A
Contact configuration: 4 normally open (4NO)
Control voltage: 230V AC
Mounting type: DIN-rail
Modular design for standard distribution boards
How to use
The Zamel STM-100-40 should be installed by a qualified electrician in accordance with local electrical regulations. Mount the device onto a standard DIN-rail within a distribution board. Connect the control circuit to the designated terminals and ensure the load circuit is wired to the main power contacts. Verify all connections for tightness and proper insulation before energizing the system.
What to consider before purchase
Ensure the load current does not exceed 100A
Verify that your control system provides 230V AC
Check available space on the DIN-rail for the modular unit
Confirm the number of contacts meets your circuit requirements
Usage recommendations
Regularly inspect the contactor for signs of wear or loose connections during routine maintenance of your electrical system to ensure continued safe and efficient operation.

## FAQ

### How much does the Zamel STM-100-40 Modular Installation Contactor 100A cost, and is it available for purchase?

The price is 94.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 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 06.07.2026 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, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Zamel STM-100-40 Modular Installation Contactor 100A be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 ZAMEL 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 ZAMEL 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/12458771/68760887_large.webp