# LS MMS-32S 4A Motor Protection Circuit Breaker 2.5-4A

**URL:** https://aio.lv/en/product--ls-mms-32s-4a--12451567
**Data updated:** 2026-05-18 02:52 (EEST)
**Category:** Control Systems
**Manufacturer:** LS
**Manufacturer code:** MMS-32S 4A
**EAN:** 8809808740390
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 32.99 €
**Prices and availability valid until:** 2026-07-14 23:59
**Price without VAT (21%):** 27.26 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ls-mms-32s-4a--12451567

## 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 LS MMS-32S 4A is a reliable motor protection circuit breaker designed for manual control and protection of electric motors. It features an adjustable thermal release range of 2.5-4A, providing effective protection against overloads and short circuits. This compact device is essential for industrial automation systems, ensuring safe operation and longevity of connected motor equipment.

## Long description

The LS MMS-32S 4A is a high-performance motor protection circuit breaker engineered to provide precise control and comprehensive protection for electric motors. This compact device serves as a critical component in industrial and commercial electrical systems, offering reliable manual switching and safeguarding against electrical faults. By integrating both thermal and magnetic trip mechanisms, it ensures that motors operate within safe parameters, effectively preventing damage from overloads and short circuits.
Advantages
This motor protection circuit breaker stands out for its robust construction and high operational reliability. It features an adjustable thermal release range, allowing users to fine-tune the protection settings to match the specific requirements of their motor. The device is designed for easy installation and space-saving integration into control panels, making it an ideal choice for modern automation setups. Its durable design contributes to the longevity of connected equipment by minimizing the risk of thermal degradation and electrical stress.
Suitable for
Industrial motor control centers
HVAC system ventilation motors
Conveyor belt drive systems
Pump and compressor motor protection
Automated manufacturing machinery
This device may not be suitable for applications requiring remote electronic monitoring or communication protocols, as it is designed primarily for manual operation. It is also not intended for use in environments exceeding its specified voltage or current ratings, nor should it be used as a primary disconnect switch in high-voltage distribution networks without appropriate secondary protection.
Key specifications
Adjustable thermal release range: 2.5-4A
Protection type: Thermal and magnetic release
Manual control interface
Compact modular design
Suitable for industrial automation environments
To use the LS MMS-32S 4A, mount the unit onto a standard DIN rail within your control cabinet. Connect the power supply lines to the input terminals and the motor leads to the output terminals, ensuring all connections are tightened to the manufacturer's torque specifications. Once installed, adjust the thermal release dial to the rated current of your motor. The device can be manually switched on or off using the front-facing toggle, and it will automatically trip in the event of an overload or short circuit.
What to consider before purchase
Verify that the motor's full-load current falls within the 2.5-4A range
Ensure the control panel has sufficient space for DIN rail mounting
Confirm compatibility with your existing electrical distribution system
Check that the ambient operating temperature is within the specified limits
For optimal performance and safety, always ensure that the thermal release is calibrated correctly to the motor's nameplate current. Regularly inspect the terminals for tightness and check the device for any signs of physical damage or discoloration after a trip event.

## FAQ

### How much does the LS MMS-32S 4A Motor Protection Circuit Breaker cost, and is it available for purchase?

The price is 32.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 69 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. 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 LS 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 LS 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/12451567/68754241_large.webp