# Voltage Control Relay FF CP-721 1-phase Programmable 1 pole 16A 150–450V AC

**URL:** https://aio.lv/en/product--ff-cp-721--12113703
**Data updated:** 2026-03-20 10:06 (EET)
**Category:** Other goods
**Manufacturer:** FF
**Manufacturer code:** CP-721
**EAN:** 5908312594932
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 65.99 €
**Prices and availability valid until:** 2026-12-09 23:59
**Price without VAT (21%):** 54.54 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-cp-721--12113703

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 25.11.2026 | free |
| Pickup points | 30.11.2026 | 1.99 EUR |
| Courier delivery to door | 30.11.2026 | 4.99 EUR |

## Summary description

FF CP-721 is a 1-phase programmable voltage control relay designed to monitor and protect electrical circuits within a 150–450V AC range. It features a single changeover contact (1 pole) rated 16A and configurable thresholds for over/under-voltage protection. Suitable for safeguarding motors, pumps, lighting and household or light-industrial installations against voltage anomalies.

## Long description

FF CP-721 is a 1-phase programmable voltage control relay engineered to monitor supply voltage and provide configurable protection against over-voltage and under-voltage conditions within a 150–450V AC range. The device includes a single changeover contact (1 pole) rated for 16A, enabling it to switch loads and interrupt circuits when preset voltage thresholds are exceeded or not met. Its programmable settings allow adjustment of trip points and time delays to suit different electrical systems and connected equipment.
Advantages
The relay offers precise voltage monitoring across a wide operating range and reliable switching via a single 16A changeover contact. Programmable thresholds and delay settings permit tailoring protection to specific loads such as motors, pumps or lighting circuits. The compact single-phase design is suitable for installations in residential and light-industrial panels, providing automatic disconnection on fault conditions to reduce equipment stress and potential damage.
Suitable for
Protection of single-phase motors and pump drives from voltage anomalies
Safeguarding household appliances and lighting circuits
Control and monitoring in light-industrial electrical panels
Applications requiring configurable over-voltage and under-voltage protection
Key specifications
Supply voltage monitoring range: 150–450 V AC
Phase: single-phase (1-phase)
Contact configuration: single changeover contact (1 pole)
Contact current rating: 16 A
Programmable thresholds for over-voltage and under-voltage protection
Adjustable time delays for tripping and reconnection
Designed for panel mounting in residential and light-industrial environments
How to use
Install the relay in the distribution or control panel according to wiring diagrams and applicable electrical standards. Configure the over-voltage and under-voltage thresholds and set desired time delays before enabling the protection function. After wiring and configuration, verify operation by testing with controlled supply variations or using a simulation procedure to ensure the relay trips and reconnects at the selected settings. Regular visual inspection and functional testing are recommended to confirm continued performance.
Usage recommendations
Use the device within its specified voltage range and rated load; avoid exceeding the 16A contact rating. Apply suitable surge protection and correct wiring practices. For motor and pump applications, set time delays to prevent nuisance tripping during temporary voltage fluctuations and follow local installation codes.

## FAQ

### How much does the Voltage Control Relay FF CP-721 1-phase 16A cost, and is it available for purchase?

The price is 65.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 1 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 25.11.2026 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 FF 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 FF 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/12113703/69906144_large.webp