Mitsubishi ST1B-E6X4 Description Description Mitsubishi ST Series Base 2×6 Screw type terminal for 4 pt. Digital input module Related products Mitsubishi FX2N-48ER-ES/UL Mitsubishi FX2N-16EX-ES/UL MITSUBISHI FR-A540-15K-EC Mitsubishi FX2N-32ER-ES/UL Mitsubishi FX2N-48ER-DS Mitsubishi FX2N-32ET-ESS/UL