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3RT2016-2BB42

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Siemens 3RT2016-2BB42 is a SIRIUS S00 three-pole power contactor that uses a 24 V DC coil to switch three-phase motor and power loads.
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Technical specifications for 3RT2016-2BB42

  • Manufacturer:
    Siemens
  • Part Number:
    3RT2016-2BB42
  • Product Family:
    Siemens Drives & Motion Control
  • Product Type:
    SIRIUS 3RT2 S00 Three-Pole Power Contactor
  • Stock:
    1
  • Contactor Size:
    S00
  • Main Poles:
    3 normally open
  • Auxiliary Contact:
    1 normally closed
  • Control Supply:
    24 V DC
  • Coil Operating Range:
    0.8 to 1.1 times rated voltage
  • AC-3 Current at 400 V:
    9 A
  • AC-3 Motor Power at 400 V:
    4 kW
  • AC-1 Current at 400 V:
    22 A at 40 °C
  • Rated Insulation Voltage:
    690 V
  • Impulse Withstand Voltage:
    6 kV
  • Maximum AC-3 Operating Rate:
    750 operations per hour
  • Coil Closing Power:
    4 W
  • Coil Holding Power:
    4 W
  • Main-Terminal Technology:
    Spring-loaded
  • Mounting Method:
    Screw or 35 mm DIN rail
  • Front and Terminal Protection:
    IP20
  • Operating Temperature:
    -25 to +60 °C
  • Maximum Installation Altitude:
    2000 m
  • Weight:
    0.6543 lbs (0.2968 kg)
  • Estimated shipping dimensions:
    8.1x7.7x5.3cm
  • Tariff Code:
    85364190
  • Country of origin:
    Germany
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals Coil Control Motor Duty Terminal Planning Protection Coordination

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.
Description
Siemens 3RT2016-2BB42 is a SIRIUS 3RT2 size S00 three-pole power contactor for switching motor and general power circuits. A 24 V DC control signal energizes its coil, closes the three main contacts and changes the state of the integrated normally closed auxiliary contact.

At 400 V AC-3, 3RT2016-2BB42 carries a 9 A motor duty corresponding to 4 kW. The control circuit remains separate from that main-current path, so the 24 V DC coil supply must be selected independently from the motor voltage.

Spring-loaded terminals on 3RT2016-2BB42 clamp the main, auxiliary and coil conductors without screw torque. The S00 housing can mount by screws or snap onto a 35 mm rail while preserving the documented conductor ranges and touch protection.

Short-circuit coordination for 3RT2016-2BB42 depends on the required assignment type. The upstream protective device therefore has to match the documented type 1 or type 2 fuse boundary rather than being chosen only from the 9 A operating current.
Alternative Names
SIRIUS 3RT2016-2BB42 3RT2 016-2BB42 Siemens 3RT20162BB42 3RT2016 2BB42 S00 Contactor 3RT2016-2BB42 3RT2016-2BB4Z Siemens 24VDC 3RT2016-2BB42 3RT2 016 2BB42
Technical notes
Before energizing Siemens 3RT2016-2BB42, verify the 24 V DC coil code and coordinate the main-circuit fuse with the selected assignment type.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Why will Siemens 3RT2016-2BB42 not pull in from a 24 V AC source?
Siemens 3RT2016-2BB42 has a 24 V DC coil, so its control source must provide the documented DC voltage at A1 and A2.
Which motor rating applies to 3RT2016-2BB42 at 400 V?
3RT2016-2BB42 is rated 9 A and 4 kW for AC-3 motor duty at 400 V.
How can the control system confirm the state of Siemens 3RT2016-2BB42?
Use the integrated 21-22 normally closed auxiliary contact of Siemens 3RT2016-2BB42 as the documented feedback path.
Can 3RT2016-2BB42 be mounted without screws?
Yes. 3RT2016-2BB42 can snap onto a 35 mm standard mounting rail or be fixed by screws.
Why do type 1 and type 2 fuse values differ for Siemens 3RT2016-2BB42?
The coordination goals differ after a short circuit, so Siemens 3RT2016-2BB42 uses separate documented fuse limits for each assignment type.
What should be checked if a spring terminal on 3RT2016-2BB42 feels loose?
Verify that the conductor cross-section and ferrule used with 3RT2016-2BB42 fall inside the spring-terminal specification.