Description
The Siemens 3RT2036-1NB34 is a heavy-duty 3-pole IEC contactor engineered for dependable motor switching and load control in commercial and industrial HVAC and building automation applications. Featuring a 20–33V DC control coil and integrated 2NO/2NC auxiliary contact configuration, this contactor delivers precise, responsive switching performance across a wide range of system demands.
Key Features
- 3-pole main contact configuration for three-phase motor and load control
- 20–33V DC rated control coil voltage for low-voltage DC control circuits
- Integrated 2NO/2NC auxiliary contacts for flexible control and feedback wiring
- Part of the Siemens SIRIUS 3RT2 contactor series — a globally recognized IEC standard platform
- Compact, DIN rail-mountable design for panel space efficiency
- Robust construction for high switching cycle endurance
- Compatible with Siemens 3RT2 series accessories, overload relays, and add-on contact blocks
Specifications
- SKU: 3RT2036-1NB34
- Brand: Siemens
- Series: SIRIUS 3RT2
- Poles: 3
- Coil Voltage: 20–33V DC
- Auxiliary Contacts: 2NO / 2NC
- Mounting: DIN Rail
- Standard: IEC
Applications
- HVAC compressor and fan motor starters
- Building automation and mechanical room control panels
- Industrial motor control centers (MCCs)
- Pump and blower motor switching
- Low-voltage DC control circuit applications
The Siemens 3RT2036-1NB34 is an ideal choice for engineers and contractors seeking a reliable, IEC-rated contactor with integrated auxiliary contacts and a low-voltage DC coil. Its compatibility with the broader SIRIUS accessory ecosystem makes it a versatile solution for new installations and panel upgrades alike.
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