Hager ESC325 Modular Contactor 25A 3 Pole 3NO 230V AC Coil 2 Module DIN Rail Mount

Description

Three-phase switching, two modules wide.

The Hager ESC325 is a 25A three-pole modular contactor with three normally open (3NO) contacts and a 230V AC coil, made for remote switching of three-phase lighting, heating and motor loads from a slim 2-module DIN rail body.

Key Features

• Rated current: 25A (AC1), 8.5A (AC3)
• Contact configuration: 3NO (3 normally open)
• Coil / command voltage: 230V AC, 50Hz
• Compact 2-module width (35.75mm) DIN rail mount
• Utilisation category AC-7a / AC-7b
• Accepts rigid conductors 1–10mm², flexible 1–6mm²
• 100,000 mechanical operations, 30,000 electrical cycles
• Rated insulation voltage 440V, impulse withstand 4000V

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Why it Matters

Made for three-phase loads.
Where the 2-pole ESC225 handles single-phase switching, the ESC325 gives you three normally open poles for controlling three-phase circuits – all three poles open at rest and close together when 230V AC is applied to the coil. That makes it the natural choice for remotely switching three-phase lighting installations, heating banks and small three-phase motors from a timer, contactor control switch or building management system.

Big switching in a small footprint.
Despite carrying a third pole, the ESC325 occupies just two DIN modules (35.75mm wide, 83mm high, 60mm deep) on standard 35mm rail, so it slots into compact boards where a bulkier industrial contactor would not fit. Terminals accept rigid conductors up to 10mm² at a 1.2Nm tightening torque, and it is rated for 100,000 mechanical operations and 30,000 electrical cycles for long life in regularly switched circuits.

Sized honestly for Australian jobs.
Hager rates the ESC325 at 25A for AC1 resistive-type loads and 8.5A for AC3 motor duty, under the AC-7a/AC-7b utilisation categories covering slightly inductive and household-motor loads. It runs from -10°C to 50°C, comfortably covering meter boxes, plant rooms and commercial distribution boards in Australian conditions. An ESC080 auxiliary contact and LZ060 heat dissipation insert are available from Hager where the install needs them.

Q: Is the Hager ESC325 a three-phase contactor?
Yes. It has three normally open (3NO) poles with a 230V AC coil, so it can switch all three phases of a three-phase circuit together.

Q: How wide is the ESC325 on the DIN rail?
Two modules, 35.75mm wide, 83mm high and 60mm deep, mounting on standard 35mm DIN rail.

Q: What is the difference between the AC1 and AC3 ratings?
AC1 (25A) applies to resistive-type loads such as heating, while AC3 (8.5A) is the lower rating that applies when switching motor loads.