Siemens 3RT2018-1AB01 SIRIUS Power Contactor 3P 16A 7.5kW 24VAC

The Siemens 3RT2018-1AB01 is a SIRIUS 3RT2 series 3-pole power contactor rated 16 A / 7.5 kW at 400 V (AC-3), operated by a 24 V AC coil at 50/60 Hz. It includes one built-in NO auxiliary contact and screw terminals on a compact S00 frame, making it well suited for motor switching and control panel integration.

Technical specifications:

• MLFB: 3RT2018-1AB01
• Manufacturer: Siemens
• Product line: SIRIUS
• Product type: Power contactor (3RT2)
• Size: S00
• Poles (main circuit): 3
• Rated current at AC-3, 400 V: 16 A
• Rated current at AC-1, 400 V (40 °C): 22 A
• Rated current at AC-4, 400 V: 11.5 A
• Operating power at AC-3, 400 V: 7.5 kW
• Maximum operating voltage (AC-3/AC-3e): 690 V
• Insulation voltage (main circuit): 690 V
• Surge voltage resistance (main and auxiliary circuits): 6 kV
• Control supply voltage: 24 V AC, 50/60 Hz
• Auxiliary contacts: 1 NO
• Terminal type: Screw terminal
• Closing delay (AC): 9 - 35 ms
• Opening delay (AC): 4 - 15 ms
• Operating temperature: -25 ... +60 °C
• Storage temperature: -55 ... +80 °C
• Installation altitude: max 2,000 m
• Mechanical service life: 30,000,000 operating cycles
• No-load switching frequency (AC): 10,000 1/h
• Maximum operating frequency at AC-3: 750 1/h

Features and benefits:

• S00 compact frame fits space-constrained control panel layouts
• 30,000,000 mechanical operating cycles for a long service life
• 6 kV surge voltage resistance on both main and auxiliary circuits
• Wide operating temperature range: -25 °C to +60 °C
• Shock resistance up to 11.4 g at 5 ms (sine pulse) for use in demanding environments
• Expandable with auxiliary switch blocks and electronically optimized modules

Applications:

• Switching and controlling 3-phase induction motors up to 7.5 kW at 400 V
• Direct-on-line and reversing motor starters in industrial control panels
• AC-1 resistive load switching up to 22 A at 400 V
• Low-voltage motor control centers and distribution boards

Compliant with EN 60947-1. Part of the Siemens SIRIUS 3RT2 range.

Also known as: Siemens 3RT2018-1AB01, SIRIUS 3RT2 contactor 16A 24VAC S00.