# Voltage Relay FF CP-730 with Time Lock, 10 A, for 4x400 V+N

**URL:** https://aio.lv/en/product--ff-cp-730--12115304
**Data updated:** 2026-03-20 10:07 (EET)
**Category:** Sensors & Detectors
**Manufacturer:** FF
**Manufacturer code:** CP-730
**EAN:** 5908312597308
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 49.99 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 41.31 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--ff-cp-730--12115304

## 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

FF CP-730 is a voltage relay with an integrated time lock designed to monitor supply voltage on four phases plus neutral (4x400 V+N). Rated for 10 A, it protects electrical circuits from unacceptable over- or undervoltage conditions and provides timed blocking to prevent nuisance trips during transient events. Suitable for industrial and residential distribution panels and motor protection where phase monitoring and delayed reconnection are required.

## Long description

FF CP-730 is a voltage relay with an integrated time lock designed to monitor supply voltage on four phases plus neutral (4x400 V+N). Rated for 10 A, this device detects overvoltage and undervoltage conditions across the monitored conductors and provides a programmable delay before reconnecting the load. The unit is intended for installation in distribution panels where phase sequence monitoring, loss-of-phase detection and timed reconnection help prevent equipment damage and nuisance trips caused by transient events.
Advantages
The relay combines continuous multi-phase voltage monitoring with an adjustable time lock to avoid repeated switching during short disturbances. Compact design allows panel mounting in standard enclosures, while the 10 A switching capacity suits auxiliary circuits, contactors and protection of control circuits. Clear functional behavior—voltage threshold detection plus time-delayed enable—reduces mechanical and electrical stress on downstream equipment and simplifies coordination with existing protection devices.
Suitable for
 Monitoring supply for small motors and control circuits in industrial installations
 Protection of residential and commercial distribution boards against phase loss or imbalance
 Applications requiring delayed reconnection after voltage disturbances
 Coordination with contactors and circuit breakers in distribution panels
Key specifications
 Monitored system: four phases plus neutral (4x400 V+N)
 Switching capacity: 10 A
 Function: overvoltage and undervoltage detection with time lock/delayed reconnection
 Mounting: panel or DIN-rail compatible enclosure for distribution boards
 Typical applications: phase monitoring, phase sequence/phase-loss detection, timed blocking
How to use
Install the relay in the distribution panel following local wiring rules and ensure all four phase conductors and neutral are correctly connected to the designated terminals. Set the appropriate voltage thresholds and time delay according to the protected equipment's tolerance to supply variations. After wiring and parameter selection, energize the supply; the relay will continuously monitor voltage levels and engage the time lock when thresholds are exceeded, preventing immediate reconnection until the set delay elapses and normal voltage is restored.
Usage recommendations
Verify compatibility of the relay's switching capacity and voltage thresholds with downstream devices. Use the time lock to coordinate reconnection with motor starters or contactors, and perform periodic inspections of connections and settings as part of preventive maintenance.

## FAQ

### How much does the FF CP-730 Voltage Relay with Time Lock cost, and is it available for purchase?

The price is 49.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 17 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 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/12115304/67650543_large.webp