3RT2016-2AN21

The Siemens SIRIUS 3RT2016-2AN21 is a 3-pole electromagnetic contactor with an S00 frame. It features a 220V AC 50/60Hz coil with one set of normally open (NO) auxiliary contacts, spring-loaded terminals for screwless quick crimping, AC-3 rated 9A/4kW/400V, and IP20 protection rating.

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Siemens 3RT2016-2AN21 Spring-loaded contactor, 220V AC, coil, 9A, 1NO

Product Positioning

The 3RT2016-2AN21 is a common specification for 220V AC control voltage in the Siemens SIRIUS 3RT2016 series. It features a 3-pole main contact AC-3 rated at 9A, 4kW/400V, and includes one normally open (NO) auxiliary contact for operation indication or interlock signal output. It is identical to the -1AN21 (screw terminal version) in the same series, with the only difference being the use of spring-loaded terminals. Wiring is simple, requiring only a tool or finger to press the wire in, making it suitable for rapid installation in large-scale panel installations or confined control boxes. With an IP20 protection rating, it can withstand operating environments from -25°C to +60°C and is mounted on a standard 35mm DIN rail. It is widely used for motor starting applications in 220V control circuits of machine tools, conveyor equipment, and air conditioning fans.

Core Product Advantages and Features

220V AC universal coil

The coil is rated at 220V AC and is universally compatible with 50/60Hz dual frequencies. It is suitable for the 220V control power supply specifications commonly found in Southeast Asia and some export machines, and can be directly driven without the need for a transformer.

1 set of normally open auxiliary contacts

It comes standard with 1 NO auxiliary contact, which can be used for contactor operation status feedback, indicator light circuits or PLC input signals, simplifying control panel wiring design.

Spring-type terminals save labor

Both the main circuit and the control circuit use spring clip terminals, eliminating the need for screwdrivers for fastening and significantly improving wiring efficiency during automated production lines or maintenance and replacement.

Wide temperature range and IP20 protection

It can operate stably in environments ranging from -25°C to +60°C, with a basic IP20 protection rating and standard DIN rail mounting, making it suitable for most general industrial environments.

project	Specification
model	3RT2016-2AN21
series	Siemens SIRIUS 3RT2 series
Extreme number	3 poles
Frame size	S00
AC-3 Rated Current/Power	9A / 4kW (400V)
Control coil voltage/frequency	220V AC, 50/60Hz
Auxiliary contact	Group 1, normally open (NO)
Terminal block type	Spring-loaded (push-in) type
Protection level	IP20
Operating temperature range	-25°C ~ +60°C
Mechanical life	Nominal 30 million times
Insulation voltage	690V
Safety certification	UL, CSA, CCC, EAC
Installation method	Standard 35mm DIN rail

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