ABB Contactors Price List — 2026 | ramo.co.il

The key specs are the rated current (AC1 vs AC3), coil voltage (24V or 230V), and number of poles (typically 3P for three-phase loads). When switching motors, sizing should always be based on the AC3 rating, since it reflects the real starting and running currents.

A common mistake is mismatching coil voltage to the control circuit — a 230V coil will not work on a 24V control system. Another mistake is undersizing the contactor based on AC1 ratings, which do not account for motor inrush current.

In Israel, panels typically use 400V three-phase systems, so the contactor voltage rating should be verified against that. For outdoor or exposed panels, the IP rating should be checked, and a mechanical interlock should be used when installing reversing contactor pairs.

Before installing, the panel should be de-energized and the contactor checked for fit with the DIN rail and enclosure.

The contactor is mounted on the DIN rail, the L1-L3 supply lines and T1-T3 to the load are connected, then the coil terminals (A1-A2) are wired to the control circuit.

Contacts should be inspected periodically for pitting or wear, and the contactor replaced if contact resistance increases. Live terminals should never be touched — power must always be off before servicing.