{{ totalProductsCount }}
In cart {{totalProductsCount}} item(s)

In cart {{totalProductsCount}} item(s)

Total:
{{sum | formatAmount}}

Your cart is empty

Minimum search length 3 characters
{{searchQuery.text}}
{{shortcut.title}}
{{searchString}} → {{searchInCategorySuggest.title}}
{{category.title}}
{{category.path}}
AiO.lv Phase sequence and phase failure relay FF PF-431i — PF-431i, three-phase protection device Similar products

Alternatives and similar models for Phase relay FF PF-431i

Phase relay FF PF-431i Photo 1

Based on this product's specifications, here are some alternatives and similar models

Phase sequence and phase failure relay FF PF-431i — PF-431i, three-phase protection device
Summary description: FF PF-431i is a phase sequence and phase failure relay designed for monitoring three-phase electrical networks. It detects incorrect phase sequence, phase loss and phase presence issues to protect motors and industrial equipment. The unit is mounted in control panels and provides reliable switching outputs for use in pump drives, compressors and factory automation.
Manufacturer: FF
Category: Sensors & Detectors
Back to product page →
FF phase sequence and phase loss relay CKF-337 1P 10A 0.2–5 s 20–60 V
FF
Sensors & Detectors
FF phase sequence and phase loss relay CKF-337 1P 10A 0.2–5 s 20–60 V
Delivery: 30.07.2026
38.99 €
FF CZF-BR-TRMS Phase Sequence and Phase Loss Monitoring Relay
FF
Sensors & Detectors
FF CZF-BR-TRMS Phase Sequence and Phase Loss Monitoring Relay
Delivery: 30.07.2026
30.99 €
FF CZF-BT-TRMS Phase Sequence and Loss Monitoring Relay
FF
Sensors & Detectors
FF CZF-BT-TRMS Phase Sequence and Loss Monitoring Relay
Delivery: 30.07.2026
34.99 €
Phase sequence and phase loss monitor FF CZF-TRMS
FF
Sensors & Detectors
Phase sequence and phase loss monitor FF CZF-TRMS
Delivery: 30.07.2026
25.99 €
F&F CKF-TRMS Phase Sequence and Loss Monitoring Relay
FF
Sensors & Detectors
F&F CKF-TRMS Phase Sequence and Loss Monitoring Relay
Delivery: 30.07.2026
27.49 €
FF CKF Phase Sequence and Asymmetry Monitoring Relay 10A 1Z 4s 45V
FF
Sensors & Detectors
FF CKF Phase Sequence and Asymmetry Monitoring Relay 10A 1Z 4s 45V
Delivery: 30.07.2026
23.99 €
FF CKF-316-TRMS Microprocessor Phase Sequence and Loss Monitor for DIN Rail Mounting
FF
Sensors & Detectors
FF CKF-316-TRMS Microprocessor Phase Sequence and Loss Monitor for DIN Rail Mounting
Delivery: 30.07.2026
37.99 €
Phase sequence, phase loss and asymmetry relay FF CKF-B 10A 1-pole 4 s 55 V
FF
Sensors & Detectors
Phase sequence, phase loss and asymmetry relay FF CKF-B 10A 1-pole 4 s 55 V
Delivery: 30.07.2026
25.99 €
Phase sequence relay ZAMEL CKM-01 10A 1P 230/400V AC
ZAMEL
Sensors & Detectors
Phase sequence relay ZAMEL CKM-01 10A 1P 230/400V AC
Delivery: 30.07.2026
29.49 €
F&F CKF-B-TRMS Phase Sequence and Phase Loss Monitoring Relay
FF
Sensors & Detectors
F&F CKF-B-TRMS Phase Sequence and Phase Loss Monitoring Relay
Delivery: 30.07.2026
30.49 €
F&F CKF-319 Phase Sequence and Loss Monitoring Relay with Adjustable Time Delay
FF
Sensors & Detectors
F&F CKF-319 Phase Sequence and Loss Monitoring Relay with Adjustable Time Delay
Delivery: 30.07.2026
56.99 €
Phase failure and phase asymmetry relay FF CKF-317 1P 10A 4 s 40–80 V
FF
Sensors & Detectors
Phase failure and phase asymmetry relay FF CKF-317 1P 10A 4 s 40–80 V
Delivery: 30.07.2026
27.99 €
Pollin MKF-1G2 Phase Failure, Sequence and Asymmetry Monitoring Relay, 1P
Pollin
Sensors & Detectors
Pollin MKF-1G2 Phase Failure, Sequence and Asymmetry Monitoring Relay, 1P
Delivery: 30.07.2026
72.49 €
FF CZF-B-TRMS Phase Asymmetry and Loss Relay
FF
Sensors & Detectors
FF CZF-B-TRMS Phase Asymmetry and Loss Relay
Delivery: 30.07.2026
28.99 €
Siemens SIRIUS 3UG5511-2BR20 Phase Sequence Monitoring Relay, 3x160-690V AC, 50-60Hz, 2CO
Siemens
Sensors & Detectors
Siemens SIRIUS 3UG5511-2BR20 Phase Sequence Monitoring Relay, 3x160-690V AC, 50-60Hz, 2CO
Delivery: 30.07.2026
101.99 €
Phase Failure and Asymmetry Relay FF CZF-310 10A 1P 4s 55V
FF
Sensors & Detectors
Phase Failure and Asymmetry Relay FF CZF-310 10A 1P 4s 55V
Delivery: 30.07.2026
24.49 €
Phase sequence and loss relay FF CKF-BR-TRMS 10A 1NO/1NC True RMS 40–80V delay 4s DIN-rail
FF
Sensors & Detectors
Phase sequence and loss relay FF CKF-BR-TRMS 10A 1NO/1NC True RMS 40–80V delay 4s DIN-rail
Delivery: 30.07.2026
32.99 €
Pollin MKF-12PK Phase Failure, Asymmetry and Sequence Monitoring Relay 2x1P 8A 250V TH35
Pollin
Sensors & Detectors
Pollin MKF-12PK Phase Failure, Asymmetry and Sequence Monitoring Relay 2x1P 8A 250V TH35
Delivery: 30.07.2026
84.99 €
Phase sequence and asymmetry loss relay ETI-Polam PZAK-1 1Z 8A (MPN 002471409)
Eti-Polam
Sensors & Detectors
Phase sequence and asymmetry loss relay ETI-Polam PZAK-1 1Z 8A (MPN 002471409)
Delivery: 30.07.2026
62.99 €
{{totalProductsWishes}} {{totalProductsCompare}} {{totalProductsCount}}
We respect your privacy
We use cookies to ensure the full operation of our store. The information associated with cookies is not used to personally identify you, and the files themselves are stored on your device, under your control. Cookies are not used for purposes other than those stated in our Privacy policy. By continuing to use our site, you agree to the use of essential cookies. If you do not agree, please, leave this site.
We use cookies
Show info
We respect your privacy
We use cookies to ensure the full operation of our store. The information associated with cookies is not used to personally identify you, and the files themselves are stored on your device, under your control. Cookies are not used for purposes other than those stated in our Privacy policy. By continuing to use our site, you agree to the use of essential cookies. If you do not agree, please, leave this site.
Which cookie files we use?

The necessary technical cookies allow you to use the basic functions of the store, such as page navigation, ordering, access to secure sites and more. The site cannot function properly without these files.

Preferences cookies are used to save information that changes how the site works and looks.

Static cookies are used in order to help the sites owner understand how the users are interacting with the site.

Marketing cookies are used in order to track a users movements throughout the site in order to show interesting and relevant ads to the specific user.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
shipping
Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
payment
Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
warranty
Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.