A9C20162

What is this device used for?

It is a modular contactor designed for remote switching of electrical loads such as motors, heating circuits and lighting circuits. It provides electrically operated switching in a DIN-rail format for distribution boards and control panels.

What type of contact arrangement does it have?

It is a 2-pole device with 2 normally open (2 NO) power contacts, suitable for switching a two-wire circuit or two separate circuits depending on the installation design.

What control voltage does the coil require?

The control circuit is 24 V AC at 50 Hz. Ensure the control supply matches this rating to achieve reliable pull-in and hold-in operation.

What are the main current ratings for typical load categories?

The rated operational current is 63 A for AC-7A (resistive and slightly inductive loads) and 20 A for AC-7B (motor and more inductive loads). Always size according to the relevant utilisation category for the load.

What is the rated operational voltage for the power circuit?

The rated operational voltage is 250 V AC at 50 Hz for the switched (power) circuit.

How is it mounted in a panel?

It clips onto a 35 mm symmetrical DIN rail and occupies 4 modules (4 x 9 mm pitches), making it suitable for standard modular enclosures and distribution boards.

What are the overall dimensions?

Approximate dimensions are 85 mm (height) x 36 mm (width) x 68.5 mm (depth). These values help with spacing and enclosure layout.

Does it provide any local indication of status?

Yes. It includes a local action indicator to show the operating state, which can help during commissioning and routine checks.

What is the expected switching frequency for typical use?

It is specified for up to 100 switching operations per day, which suits many building-services and light industrial control duties.

What are the insulation and surge withstand ratings?

It has a rated insulation voltage (Ui) of 500 V AC and a rated impulse withstand voltage (Uimp) of 4 kV, supporting use in typical low-voltage distribution environments.

What are the power consumption figures for the coil?

Typical coil figures are 34 VA inrush and 4.6 VA hold-in. These values are useful when sizing control transformers and upstream control devices.

What terminal types and conductor sizes are supported?

It uses tunnel-type terminals. The power circuit typically accepts 6–25 mm² rigid conductors or 6–16 mm² flexible conductors (single conductor per terminal). The control circuit typically accepts 1.5–2.5 mm² conductors (up to two conductors depending on type).

What tightening torques should be used for the terminals?

Recommended tightening torque is 3.5 N·m for the power terminals and 0.8 N·m for the control terminals to help maintain secure connections.

What environmental and enclosure protection ratings apply?

It is rated IP20 as a device and typically reaches IP40 when installed in a suitable modular enclosure. It is specified for operation from -5 to +60 °C, storage from -40 to +70 °C, and up to 2000 m altitude.

Which standards does it conform to?

It is specified to IEC/EN 61095, a common standard for electromechanical contactors for household and similar purposes.

Is it compliant with common environmental regulations?

It is stated as EU RoHS compliant and mercury-free. In listings and documentation it may be referenced as a Green Premium product; the specific unit is commonly identified as Schneider A9C20162.