TBB STM250 modular inverter systems for industry application

Product catalog summary

Overview:
The STM250 is a sub-rack inverter system that integrates the TM250 inverter module and the TJ20 module. It is designed as a redundant system providing pure sine wave inverter functions, a bypass transfer switch, and monitoring capabilities within a 19”3U sub-rack. The system supports hot plug design for easy maintenance without disrupting critical loads.

Specifications:

Power Capacity: Up to 4KVA for 100Vac/110Vac/120Vac and 8KVA for 220Vdc.
Configuration: N+1 redundant configuration with hot plug technology.
Efficiency: Maximum efficiency up to 90%.
Isolation: DC-AC isolation enhances system security.
Transfer Switch: Built-in bypass transfer switch with a quick transfer time of 5-8ms.
Voltage Adjustment: Adjustable voltage settings for 230Vac (200-240) or 110Vac (100-120).
Communication: RS485 or RS232 communication ports, with an optional built-in SNMP card.

Main Data:

DC Input Voltage: 110Vdc or 220Vdc with a range of -20% to +30%.
AC Input Voltage: 110Vac or 230Vac with a range of -25% to +20%.
Module Power: 1.5KVA, 2KVA.
System Max Power: 6KVA.
AC Output Voltage: 110VAC or 230VAC (± 2%).
AC Output Frequency: 50/60Hz ± 0.1%.
Power Factor: 0.8.
THD: Less than 3%.
Efficiency: Maximum 89%.
Overload Capacity: 150% for 60 seconds / 125% for 10 minutes.
Operating Temperature: -20℃ to 60℃.
Isolation: 2000Vrms.
Dimensions: 19”3U.
Cooling: Thermal controlled fan.
Enclosure: IP20.

Standards:

EN55022
EN60950-1

Catalog excerpts

TBB STM250 modular inverter systems for industry application-1

STM250 modular inverter systems System max power STM250 is a sub-rack inverter system integrating TM250 inverter module and TJ20 module. It is a truly redundant system offering functions of pure sine wave inverter, bypass transfer switch and monitor into one 19”3U sub-rack. Single module is hot plug design which make the maintenance an easy job without interruption to your critical load. For 100Vac/110Vac/120Vac , max 4KVA is available. Features: 19”3U Pure Sine Wave, with THD<3% N+1 redundant configuration Hot plug in technology Max efficiency up to 90% DC-AC isolation improving system security Built in bypass transfer switch Quick transfer time 5-8ms Built in monitor module Voltage adjustable 230Vac (200-240) or 110Vac (100-120) Working mode selectable (AC priority or DC priority ) RS485 or RS232 communication port Relay dry contact Built in SNMP card – optional Main Data Input DC input voltage: DC input range: AC input voltage: AC input voltage range: Output Module Power : Power factor: Efficiency: Overload : Transfer time: Others Operating Temp: Isolation: Dimension : Cooling : Enclosure :

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