Description

ABB – Contactor AX150-30-11-81

Manufactured: ABB

Product Type: Contactor

Product Tag: AX150-30-11-81

General Information

The ABB AX150-30-11-81 is a block-type, three-pole AC-operated contactor designed for controlling three-phase motors and switching industrial power circuits. The contactor is supplied with one normally open and one normally closed auxiliary contact through a side-mounted auxiliary contact block.

For IEC AC-3 motor applications, the AX150 contactor is rated at 150 A and 75 kW at 380–400 V. The “-81” coil code identifies a 24 V AC control coil at both 50 Hz and 60 Hz.

Features

• Three normally open main power poles.
• One normally open and one normally closed auxiliary contact.
• Side-mounted auxiliary contact block.
• AC-operated electromagnetic control circuit.
• 24 V AC coil at 50/60 Hz.
• Suitable for three-phase motor control and industrial power switching.
• Supports additional front-mounted and side-mounted accessories.
• Rated AC-3 making capacity of 10 times the operational current.
• Rated AC-3 breaking capacity of 8 times the operational current.
• Maximum electrical switching frequency of 300 cycles per hour.
• Maximum mechanical switching frequency of 3,600 cycles per hour.
• Mechanical durability of approximately 10 million operating cycles.
• Maximum operating altitude without derating of 3,000 m.

Specification for AX150-30-11-81

Contact Configuration

Main Contacts:

• 3 Normally Open
• 0 Normally Closed

Auxiliary Contacts Fitted:

• 1 Normally Open
• 1 Normally Closed

Control Coil

Rated Control Circuit Voltage:

• 50 Hz: 24 V AC
• 60 Hz: 24 V AC

Coil Operating Limit: 0.85–1.10 × rated control voltage under the specified operating conditions.

Main Circuit

Maximum Rated Operational Voltage, Ue: 1000 V

Rated Insulation Voltage, Ui: 1000 V

Rated Impulse Withstand Voltage, Uimp: 8 kV

Rated Frequency: 50/60 Hz

Rated Operational Current — AC-3

• 220–240 V: 150 A
• 380–400 V: 150 A
• 415 V: 150 A
• 440 V: 100 A
• 500 V: 100 A
• 690 V: 82 A

Rated Operational Power — AC-3

• 220–240 V: 45 kW
• 380–400 V: 75 kW
• 415 V: 75 kW
• 440 V: 59 kW
• 500 V: 59 kW
• 690 V: 75 kW

Rated Operational Current — AC-1

• At 40 °C: 190 A
• At 55 °C: 145 A
• At 70 °C: 130 A

Short-Time Withstand Current

At 40 °C, in free air and starting from a cold state:

• 1 second: 1,320 A
• 10 seconds: 800 A
• 30 seconds: 500 A
• 1 minute: 350 A
• 15 minutes: 175 A

Environmental Conditions

Operating Temperature with Thermal Overload Relay: −25 to +55 °C

Operating Temperature without Thermal Overload Relay: −40 to +70 °C

Storage Temperature: −40 to +70 °C

Maximum Altitude without Derating: 3,000 m

Applicable Standards

• IEC 60947-1
• IEC 60947-4-1
• EN 60947-1
• EN 60947-4-1