The INB Series, a customer-oriented OEM product, is designed in a modular format to provide a versatile range of inverters for controlling DC and AC compressors. It enables variable RPM (speed) control using a 4-20mA signal, allowing for energy-efficient operation while meeting specific customer requirements. This series is particularly optimized for DC compressors, featuring built-in protection functions and pre-configured settings tailored for refrigeration and air conditioning applications. These integrated features help reduce costs during mass production and prototype testing.

※ DC Compressors:
   - Variable-capacity compressors driven by PMSM motors    
   - Also referred to as DC motors or BLDC motors
※ AC Compressors:
   - Available in fixed-speed and variable-capacity types
   - Driven by induction motors
   - Also known as AC motors, fixed-speed motors, or fixed-speed devices

구분	INB22-SA	INB32-SA
Power supply	1Phase 220Vac 60Hz	3P 3W 380Vac 60Hz
Rated capacity	1.5kW	2.2kW
Applicable compressor Rated capacity(RT)	1.0RT	1.5RT
Applicable compressor Rated capacity(W)	3.5kW	5.3kW
Input/Output specitications	4-20mA input, start signal input, RS-485 Modbus communication input
Exterior type	Wall part insertion Heat dissipation Air cooling type / Base, oard open type
Power terninel	7.62mm gap barrier tunnel	7.62mm gap barrier tunnel
	[Power input L, N, PE 3terminals, motor output U, V, W 3terminals]	[Power input L1, L2, L3, PE 4terminals, motor output U, V, W 3terminals]
I/O	1 x A/I(Analog Input) Compressor speed control proportional input port ( 4~20mA current input method) 1 x A/I(Analog Input) 1 x D/I(Digital Input) Operation ON/OFF input port (powerless contact input method) 1 x D/O(Digital Ouput) Digital output port (NO, COM) for operation signal output 1 x D/O(Digital Ouput) Digital output port port (NO, COM) for inverter alarm output
COMM.	1 x RS485 MODBUS Comm. Port	1 x Isolated RS485 MODBUS RTU Comm. Port
Display	Operration/output status(10steps>LDED(Grn), alarm LED(Red), communication status LED(Red), communication status(Red, Grn)