GXT4-700RT230E Emerson Liebert GXT4 Online Double-Conversion UPS

Emerson GXT4-700RT230E Online UPS

Configured for power conditioning in IT and automation networks, the Emerson GXT4-700RT230E (GXT4-700RT230E Online UPS) provides direct physical electrical regulation through true double-conversion architecture.

Hardware Specifications

Process Control and Power Quality

The GXT4-700RT230E maintains a 4-20 mA HART loop protocol compatibility environment by providing a stable, noise-free 230 V AC supply that prevents transient interference from reaching sensitive DCS field instruments. The double-conversion design ensures that output voltage remains within 2% tolerance, mitigating common-mode noise often found in industrial power grids. Furthermore, the unit supports daisy-chained communication interfaces, allowing integrated monitoring systems to track battery health and load status via serial or network-based data exchanges, ensuring the operational continuity of local control panels.

Frequently Asked Questions

Q: Does the unit support hot-swapping of battery modules without disconnecting the load?

A: Yes, the battery compartment is physically isolated from the inverter power stage, allowing for hot-swappable replacement while the unit remains in bypass or online mode.

Q: Is the output frequency synchronized with the input grid frequency?

A: In online mode, the inverter re-synthesizes the output waveform; the unit employs auto-sensing frequency tracking to lock onto the 50 Hz or 60 Hz input, ensuring seamless synchronization during transitions between line and battery power.

Field Installation Guidelines

1. Mounting Configuration: Secure the unit using the included rack-mount brackets for 2U cabinet installation or assemble the tower base for vertical floor-standing deployments. Ensure the chassis feet are locked to prevent tipping.
2. Environmental Requirements: Maintain a clear 100 mm gap at the front and rear of the chassis to facilitate forced-air cooling. Avoid installation environments where ambient temperature exceeds 40 deg C, as this degrades internal VRLA battery capacity.
3. Electrical Connections: Connect the UPS input to a dedicated branch circuit protected by an appropriate thermal-magnetic circuit breaker. Use stranded copper conductors sized for the unit's peak current draw to minimize resistive voltage drops.
4. Grounding: Establish a robust connection between the chassis grounding stud and the cabinet’s main earth bus. Proper grounding is essential to maintain the effectiveness of the internal EMI/RFI noise filters.