Overview
The Siemens 3RT2018-1AF01 is a high-performance power contactor designed for industrial and commercial applications. With a 16 A current rating and 7.5 kW power capacity at 400 V, this 3-pole contactor ensures reliable operation for motors and other heavy-duty electrical loads. Its AC-3e/AC-3 rating makes it suitable for frequent switching of AC motors and resistive loads.
Equipped with 1 NO auxiliary contact and a screw terminal design, the 3RT2018-1AF01 offers seamless integration into control circuits while maintaining safety and efficiency. Its compact S00 size provides space-saving installation in electrical panels and switchgear.
Key Features
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Rated Current: 16 A
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Rated Power: 7.5 kW at 400 V
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Poles: 3-pole configuration for efficient power control
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Coil Voltage: 110 V AC, 50/60 Hz
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Auxiliary Contacts: 1 NO (normally open) for control signaling
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Terminal Type: Screw terminals for secure connections
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Size: S00, compact and space-efficient
Benefit
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High Reliability: Designed for continuous operation in industrial environments.
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Versatile Use: Suitable for AC-3 and AC-3e applications including motor starting.
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Compact Design: S00 size saves panel space and allows flexible installation.
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Easy Integration: Screw terminals and auxiliary contacts make wiring straightforward.
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Durable Build: Siemens engineering ensures long-lasting performance.
Function & Application
The 3RT2018-1AF01 contactor is primarily used to switch electric motors and other resistive loads. It functions by using the 110 V AC coil voltage to magnetically close the main 3-pole contacts, supplying power to the load.
Typical Applications Include:
- Switching 3-phase AC motors (e.g., pumps, fans, conveyors)
- Industrial machine control systems
- Heating/Lighting circuits
- Use in conjunction with a thermal overload relay to create a full motor starter.
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