# Surge protection module EFB Elektronik 1DA Feinschutz FailSafe Ub 48 V DP1LSA-48FS-PTC

**URL:** https://aio.lv/en/product--efb-elektronik-4615048--11199624
**Data updated:** 2026-02-14 19:36 (EET)
**Category:** Network Equipment Accessories
**Manufacturer:** EFB Elektronik
**Manufacturer code:** 46150.48
**EAN:** 4049759067298
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 58.99 €
**Prices and availability valid until:** 2026-08-15 23:59
**Price without VAT (21%):** 48.75 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--efb-elektronik-4615048--11199624

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 13.08.2026 | free |
| Pickup points | 18.08.2026 | 1.89 EUR |
| Courier delivery to door | 18.08.2026 | 4.99 EUR |

## Summary description

EFB Elektronik 1DA Feinschutz DP1LSA-48FS-PTC is a surge protection module with FailSafe function designed for systems with a nominal supply voltage of 48 V. Intended for protecting communication and network equipment, it provides fine protection against transient overvoltages and includes a PTC element for thermal/current limiting. Suitable for rack and field installations to increase equipment reliability.

## Long description

The EFB Elektronik 1DA Feinschutz FailSafe Ub 48 V DP1LSA-48FS-PTC is a surge protection module engineered for systems with a nominal supply voltage of 48 V. Designed to protect communication and network equipment, this module provides fine protection against transient overvoltages while integrating a PTC element for thermal and current limiting. Its compact form factor supports both rack and field installations and helps maintain continuity of service by isolating faults and limiting fault current in the event of surge stress.
Advantages
This surge protection module combines precise transient suppression with an integrated PTC for thermal/current limitation, offering a FailSafe behaviour that reduces the risk of collateral damage to connected devices. The device is suitable for integration into communication racks and field housings, delivering low let-through voltage for sensitive network electronics and stable performance under repeated transient events. Installation is straightforward and the unit contributes to long-term reliability of 48 V power systems.
Suitable for
Protection of network switches, routers and communication interfaces powered from 48 V systems
Rack-mounted telecom and data center equipment protection
Field installations for industrial and utility communication links
Environments where controlled thermal/current limiting is required to prevent failure propagation
Key specifications
Nominal system voltage: 48 V DC
Function: fine transient overvoltage protection with FailSafe behavior
Integrated PTC element for thermal and current limiting
Intended application: communication and network equipment protection
Suitable for rack and field installation scenarios
How to use
Install the module in line with the supply conductor feeding the protected device according to the system wiring guidelines. Ensure correct polarity and secure electrical connections to maintain low contact resistance. Place the unit in a suitable enclosure or rack location that allows heat dissipation and access for inspection. Verify system voltage is compatible with the device (nominal 48 V) before energizing and check protective continuity after installation. If the PTC element activates due to overcurrent, allow the device to cool and reset according to installation procedures.
Usage recommendations
Use the module in combination with proper grounding and upstream protection devices. Periodically inspect connections and test protected circuits after significant surge events. Replace the unit if visible damage or persistent activation of the PTC is observed to maintain reliable protection for sensitive network equipment.

## FAQ

### How much does the EFB Elektronik 1DA Feinschutz DP1LSA-48FS-PTC protector cost, and is it available for purchase?

The price is 58.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 18 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 13.08.2026 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 EFB Elektronik 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 EFB Elektronik 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