APC Rack Mount Transfer Switch UPS Source Transfer Switch for use with AP9335TH, AP9335T

APC Automatic Transfer Switch, 2.44m Length, 43.2cm Width - AP4424A

This automatic transfer switch provides rack-mounted automatic source switching for critical power environments, designed to integrate with compatible UPS equipment. It operates as an accessory for rack installations where seamless transfer between power sources is required, maintaining continuity for connected loads in automation and electrical systems.

Features and Benefits:

• Rack form factor supports 2U mounting for space-efficient installation
  Compatible with specific UPS units to enable automatic switching
  Meets EN 55022 Class A for conducted and radiated emissions control
  Complies with FCC part 15 Class A for electromagnetic disturbance management
  Width of 43.2 cm allows standard rack alignment for cabinet fitting
  Length of 2.44 m accommodates extended rack cable routing

Applications

• Suitable for integrating into server racks requiring automatic power transfer
  Ideal for industrial control cabinets using compatible UPS hardware
  Used with AP9335T and AP9335TH UPS units in distributed power systems
  Can be used for continuity protection in automation and electronics labs

What form factor does it use for mounting in equipment racks?

It is designed for installation in a 2U rack space to conserve vertical cabinet height.

Which external standards govern its electromagnetic performance?

It conforms to EN 55022 Class A and FCC part 15 Class A requirements for emissions.

How is it sized for physical rack compatibility?

The assembly has a width of 43.2 cm and a length of 2.44 m to match common rack layouts.

Which UPS models is it intended to Interface with?

It is intended for use with the specified compatible UPS models supplied for integration.

What depth consideration should installers note?

The unit occupies a depth of 23.6 cm inside the rack, which should be allowed for clearance.