ATS / MTS Systems

Automatic and Manual Transfer Switch systems ensuring uninterrupted power for critical installations.

Automatic & Manual Transfer Switch Systems in Kenya

Panel Tech Systems designs and manufactures reliable Automatic Transfer Switch (ATS) and Manual Transfer Switch (MTS) systems for seamless power changeover between mains supply and backup generators.

Our transfer switch solutions ensure uninterrupted power supply for hospitals, data centres, factories, commercial buildings, and critical infrastructure facilities across Kenya.

ATS — Automatic Transfer Switch

Our ATS panels automatically detect mains power failure and switch to the backup generator within seconds:

Auto Start — Sends start signal to generator on mains failure
Auto Transfer — Switches load to generator after stabilisation delay
Auto Return — Transfers back to mains when restored and cools down generator
Anti-paralleling — Mechanical and electrical interlocking prevents simultaneous connection

MTS — Manual Transfer Switch

For applications where manual control is preferred, our MTS panels provide safe, reliable manual changeover with built-in safety interlocks to prevent backfeed.

Transfer Switch Ratings

We manufacture transfer switch panels from 63A to 3200A in both 3-phase and single-phase configurations. Common ratings include 63A–250A for residential, 400A–800A for commercial, 1000A–1600A for industrial, and 2000A–3200A for large-scale installations.

Key Components

Our ATS/MTS panels use proven components from Socomec, ABB, Schneider, and Chint — including motorized changeover switches, contactors, protection relays, and programmable ATS controllers.

Key Features

Automatic mains failure detection

Seamless generator changeover

63A to 3200A capacity range

Mechanical & electrical interlocking

Anti-paralleling protection

Programmable time delays

Generator auto-start & cool-down

ABB, Schneider & Socomec components

3-phase and single-phase options

Full commissioning & testing

Need ATS / MTS Systems?

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Frequently Asked Questions about ATS / MTS Systems

An Automatic Transfer Switch (ATS) is a power transfer device that automatically moves an electrical load between two sources — typically the mains grid and a standby generator — when the primary source fails. The ATS senses voltage and frequency on both sources, signals the generator to start, and transfers load once the generator is at rated output.

Open-transition ATS systems transfer in 0.1 to 10 seconds depending on configuration and required generator start time. Closed-transition ATS systems transfer in 0–100 milliseconds by momentarily paralleling the two sources. For loads that cannot tolerate any interruption, a Static Transfer Switch (STS) achieves sub-cycle transfer using thyristors.

An Automatic Transfer Switch (ATS) operates without operator intervention — it senses outage and transfers load itself. A Manual Transfer Switch (MTS) does the same job but requires an operator to throw the handle. MTS is cheaper and simpler but only suits installations where an operator is always available within minutes of an outage.

For life-safety loads (theatres, ICU, dialysis, dispensary refrigeration) closed-transition or static transfer is strongly preferred because open-transition introduces a power gap that medical equipment can interpret as a fault. NFPA 110 and IEC 60364-7-710 specifically address transfer times and source separation in medical locations.

Size the ATS continuous current at least 10% above the total downstream continuous load, ensure the withstand and closing rating (WCR) is at least equal to the prospective short-circuit current at the switch, and coordinate the upstream breaker so it clears faults faster than the WCR's rated duration. For motor-heavy loads, derate or specify a motor-rated switch.