Features:
- Switches three main power poles from a 24 V DC control coil.
- Rates a 400 V AC-3 motor circuit at 9 A and 4 kW.
- Provides one normally closed auxiliary contact and spring-loaded terminals.
Match the complete 3RT2016-2BB42 order number when selecting the replacement because the suffix fixes the coil and auxiliary-contact version.
Transfer the main, coil, and auxiliary conductors by terminal designation instead of relying on the similar S00 housing outline.
Commission the control circuit, main-contact continuity, and overload coordination as separate checks before the contactor is returned to service.
The Siemens 3RT2016-2BB42 SIRIUS 3RT2 S00 Three-Pole Power Contactor may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
Siemens 3RT2016-2BB42 SIRIUS 3RT2 S00 Three-Pole Power Contactor Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Relating the 24 V DC command to the three main contacts
- A1/A2 supply: The control source energizes the DC coil through its two coil terminals.
- Magnet action: Coil current pulls in the contactor mechanism.
- Main poles: The three normally open power paths close together.
- Auxiliary feedback: The integrated NC contact changes state for the control circuit.
Applying the AC-3 rating to the connected three-phase load
- Current point: The 400 V AC-3 motor path is rated 9 A.
- Power point: That duty corresponds to 4 kW at the documented voltage.
- Switching rate: Repeated operation stays inside the AC-3 operations-per-hour limit.
- Ambient effect: The installation remains inside the specified operating-temperature range.
Keeping coil, auxiliary and main conductors on their own paths
- Main terminals: Three line conductors enter L1, L2 and L3 and leave through T1, T2 and T3.
- Coil terminals: A1 and A2 carry only the 24 V DC control supply.
- Auxiliary pair: 21 and 22 provide the normally closed status path.
- Spring clamp: Conductor size and ferrule choice follow the documented spring-terminal range.
Selecting the short-circuit device from the required assignment type
- Type 1: The permitted fuse boundary allows contactor damage after a cleared fault.
- Type 2: The lower documented fuse boundary supports continued usability after clearing.
- Auxiliary fuse: The control contact uses its separately documented protective limit.
- Application record: The drawing identifies which coordination type the feeder requires.