Please note that we will be closed for the holiday period starting from 24th December, and will reopen on 2nd January 2026. Our last shipping dates to customers this year will be - UK Mainland: 22/12/2025. Highlands/2-day carriage: 18/12/2025. FedEx Priority: 16/12/2025. FedEx Economy: 15/12/2025.

Industrial Serial Surge Protectors for Reliable Line Protection

Protect your RS-232, RS-422, and RS-485 connections from unexpected voltage spikes with our industrial serial surge protectors. Designed for quick installation and full electrical isolation, these devices help safeguard sensitive equipment against damage caused by surges, lightning strikes, and electrical noise.

Ideal for use in harsh industrial environments, remote installations, and anywhere signal reliability is needed.

Need advice on protecting your serial infrastructure? Our team is here to help.

Enquire Now
Serial Surge Protectors

Showing 0 of 4 Serial Surge Protectors items

Filter your results
Clear Filters
ISD-1230-T
Moxa ISD-1230-T
RS-422/485 Surge Protector – 20kV Isolation and 4 Data Lines
£190.00
ISD-1210-T
Moxa ISD-1210-T
RS-232 Surge Protector – 20kV Isolation and 4 Data Lines
£190.00
ISD-1130-T
Moxa ISD-1130-T
RS-422/485 Surge Protector – 4kV Isolation and 7 Data Lines
£68.50
ISD-1110-T
Moxa ISD-1110-T
RS-232 Surge Protector – 4kV Isolation and 7 Data Lines
£77.00
Why Add Surge Protection to Serial Lines?
Power surges and lightning strikes can travel through cabling and damage connected equipment. A surge protector absorbs or redirects excess energy, keeping controllers and PCs safe from unexpected failures.

When Is Surge Protection Most Critical?
It is especially important in outdoor or exposed installations such as transport systems, utility networks and remote monitoring stations. These sites are more likely to experience power fluctuations and electrical storms.

What Should You Look For in Industrial Surge Protectors?
Industrial-grade models provide higher clamping voltages, multi-port protection and isolation. They are built to tolerate continuous use in harsh environments, giving long-term assurance that sensitive serial devices remain protected.