Auxiliary Dry Contact Input Circuit Diagram

11 – Communications (continued)

11-4 Remote Emergency Power Off (EPO) Circuit Diagram

The Remote Emergency Power Off (EPO) input connection (P1) allows you to connect the UPS system to your facility’s EPO circuit. Connecting

the UPS system to the EPO circuit enables remote emergency shutdown of the UPS system’s output. Connect EPO input to a user-supplied remote 2 switch, following the circuit diagram below. This contact is normally open. User supplied REPO button must be latching type in a closed position. When opened, the UPS goes to bypass. The inverter must then be restarted by pressing the ON button to return to on-line mode. Contact rated for 12V DC minimum, 0.1A (nominal).

P1	DC	3
	DC

USER-SUPPLIED

REPO - N.O. LATCHING SWITCH

11-5 Auxiliary Dry Contact Input Circuit Diagram

The auxiliary dry contact input connections (P2) allow the UPS system to receive external signals.

INPUT DRY A (P2, pins 1 and 2) is utilized with generator controls. If required, as the generator starts up, closing the normally open (N.O.) INPUT DRY A contact will cause the UPS to limit the DC charging current to less than half of its settings. Once the INPUT DRY A contact is opened, DC charging current will return to its normal set functions.

INPUT DRY B (P2, pins 3 and 4) is utilized for remote shutdown within 60 seconds of its activation. Closing INPUT DRY B contact will begin the UPS shutdown. Opening INPUT DRY B contact will disable the shutdown sequence. Repeated open/close sequencing of INPUT DRY B contact should be avoided as damage to the UPS may result. A normally open (N.O.) latching type contact is therefore recommended for INPUT DRY B.

These contacts are normally open. External contacts rated for 12V DC minimum, 0.1A (nominal).

INPUT

DRY A

INPUT

DRY B

USER-SUPPLIED

INPUT N.O. CONTACTS

11-6 External Battery Cabinet Temperature Inputs

The external battery cabinet temperature input connections (P3, P4, P5, P6) allow the UPS system to receive signals from an optional accessory that monitors the temperature of external battery cabinets. Visit www.tripplite.com/support for more information.

	12
11-7 External Battery Status Input	12

The external battery cabinet status input connection (P7) allows the UPS system to receive external battery cabinet status signals through an optional cable. Pin 1 = +12V; Pin 2 = detection cable connected; Pin 3 = battery cabinet breaker status (signal active= breaker on; signal inactive = off); Pin 4 = reserved; Pin 5 = reference voltage. Visit www.tripplite.com/support for more information.

	53
12-212-93-3141.indb 53		12/28/2012 11:18:15 AM

SU120KX2 specifications

The Tripp Lite SU120KX2 is an advanced uninterruptible power supply (UPS) that provides reliable backup power and surge protection for critical devices. Engineered for small and medium-sized businesses, this UPS is ideal for safeguarding sensitive electronics such as servers, network devices, and telecommunications equipment.

One of the standout features of the SU120KX2 is its impressive 1200VA power capacity. This allows it to deliver significant run time during power outages, ensuring that your equipment remains operational until power is restored or until you can safely shut down your systems. With a pure sine wave output, this UPS simulates utility power, providing stable voltage and frequency to connected devices. This is particularly important for equipment that is sensitive to power fluctuations, as it helps to maintain optimal performance and longevity.

The SU120KX2 is equipped with multiple battery and surge protected outlets, providing flexibility for connecting various devices. It includes USB and serial connectivity options for easy communication with connected equipment, enabling monitoring of battery status and power conditions. An LCD screen provides real-time information on battery level, load capacity, and input/output voltage, ensuring users are informed about the status of their power supply.

Another notable feature is the built-in automatic voltage regulation (AVR). This technology helps to stabilize input voltage levels, correcting minor fluctuations without switching to the battery, thereby extending the life of the battery while ensuring your devices receive consistent and clean power. Furthermore, the SU120KX2 includes advanced battery management features that optimize battery performance and provide notifications for battery replacement when necessary.

For added convenience, the Tripp Lite SU120KX2 offers hot-swappable battery capabilities, allowing users to replace batteries without shutting down connected devices. This ensures that your critical operations are not interrupted, making it an ideal choice for businesses that cannot afford downtime.

Overall, the Tripp Lite SU120KX2 combines robust performance with reliable protection, making it a perfect solution for businesses looking to secure their electronic infrastructure against power disturbances. With its manageable size, advanced features, and user-friendly interface, the SU120KX2 stands out as a dependable UPS that meets the needs of various applications while ensuring the integrity and availability of your critical systems.

Tripp Lite SU120KX2 owner manual Remote Emergency Power Off EPO Circuit Diagram

Models: SU120KX2

11 – Communications (continued)

11-4 Remote Emergency Power Off (EPO) Circuit Diagram

11-5 Auxiliary Dry Contact Input Circuit Diagram

SU120KX2 specifications