Togami PAK-100H Magnetic Contactor.

Type: PAK-100H

Voltage Ratings:

• 240V AC
• 440V AC
• 550V AC

Current Ratings:

• AC-1: 150A
• AC-3: 125A

Standards:

• IEC 60947-4-1
• JIS C 8201-4-1
• JEM 1038
• GB14048.4

Other markings:

• CE certification
• NP-17983 (likely a part number or internal code)
• R80861 (possibly a batch or production code)

Key Points:

• It's a three-phase contactor, as indicated by the three sets of terminals (R/1/L1, S/3/L2, T/5/L3).
• The "AC-1" and "AC-3" ratings refer to different types of motor loads. AC-1 is for resistive loads, while AC-3 is for inductive loads like motors.
• The contactor is designed for controlling electrical circuits, especially those involving motors.