3RT1076-6AP36 SIEMENS PLC Programmable Logic Controller 0°C ~ 55°C 24V DC 11W
3RT1076-6AP36 Description
The 3RT1076-6AP36 is a heavy-duty 3-pole AC power contactor from Siemens’ SIRIUS 3RT series (Size S12), engineered for reliable switching and control of high-power three-phase industrial loads. Rated at 500 A (AC-3, 400 V) and 250 kW motor capacity, it supports direct-on-line (DOL) starting for large motors, pumps, compressors, and heavy machinery. It features a universal 220–240 V AC/DC control coil, pre-installed 2 NO + 2 NC auxiliary contacts, busbar main connections, and screw terminals for control circuits, delivering robust performance in industrial power distribution and automation systems.
3RT1076-6AP36 Key Features
- High Power Rating: 500 A AC-3 (400 V) / 610 A AC-1, controls motors up to 250 kW, ideal for heavy industrial loads.
- Universal Control Coil: Operates on 220–240 V AC (50/60 Hz) or 220–240 V DC, flexible for global control systems.
- Integrated Auxiliary Contacts: Pre-assembled 2 NO + 2 NC auxiliary switch block for status signaling and interlocking, no extra mounting required.
- Busbar Main Connections: Heavy-duty busbar terminals for high-current main circuit, ensuring low contact resistance and stable power transmission.
- Built-in Surge Protection: Integrated varistor suppresses coil voltage spikes, extending contact and coil life.
- Robust Mechanical Design: Conventional magnetic mechanism, long mechanical life (≥ 5 million operations) and electrical life (≥ 1 million operations at rated load).
- Wide Ambient Compatibility: Operates from -25°C to +60°C, suitable for harsh industrial environments, up to 2000 m installation altitude.
- Easy Installation & Mounting: Panel/surface mount design, standard mounting holes, compatible with SIRIUS accessory modules (overload relays, auxiliary blocks).
- Global Certifications: Compliant with IEC, EN, CE, UL, and RoHS standards for worldwide industrial use.
3RT1076-6AP36 Materials & Applications
Materials
- Main Contacts: Silver-cadmium oxide (AgCdO) alloy, high conductivity, low wear, excellent arc resistance for long electrical life.
- Frame & Housing: High-strength, flame-retardant thermoplastic (UL94 V-0), impact-resistant, heat-stable, insulation protection.
- Magnetic Core: High-grade silicon steel laminations, low hysteresis loss, stable magnetic force, reduced coil heating.
- Coil Winding: Enameled copper wire with high-temperature insulation, reliable performance under continuous duty.
- Terminals: Tin-plated copper busbars and screw terminals, anti-oxidation, secure high-current connection.
- Auxiliary Contacts: Silver alloy contacts for precise low-current signal switching.
Typical Applications
- Motor Control: Direct-on-line starting for large 3-phase motors (up to 250 kW) in pumps, fans, compressors, conveyors, crushers.
- Industrial Machinery: Machine tools, textile machines, printing presses, plastic injection molding machines, metal processing equipment.
- Power Distribution: Switching in switchgear, distribution panels, power control centers, industrial power systems.
- HVAC & Pumping Systems: Large HVAC units, water treatment pumps, industrial cooling systems.
- Mining & Construction: Heavy-duty equipment, conveyor systems, material handling machinery.
- Marine & Offshore: Marine electrical systems, offshore platform power control (certified for harsh environments).
3RT1076-6AP36 Important Parameters
| Parameter |
Specification |
| Part Number |
3RT1076-6AP36 |
| Brand |
Siemens (SIRIUS 3RT Series) |
| Type |
3-Pole AC Power Contactor, Size S12 |
| Rated Operational Current (AC-3, 400 V) |
500 A |
| Rated Operational Current (AC-1, 400 V) |
610 A |
| Rated Motor Power (400 V, 3-phase) |
250 kW |
| Control Coil Voltage |
220–240 V AC (50/60 Hz) / 220–240 V DC |
| Number of Main Poles |
3 NO |
| Auxiliary Contacts |
2 NO + 2 NC (pre-installed) |
| Main Circuit Connection |
Busbar terminals |
| Control/Auxiliary Connection |
Screw terminals |
| Mechanical Life |
≥ 5,000,000 operations |
| Electrical Life (AC-3) |
≥ 1,000,000 operations |
| Protection Degree |
IP20 (open type) |
| Operating Temperature |
-25°C to +60°C |
| Storage Temperature |
-55°C to +80°C |
| Humidity |
5–95% RH (non-condensing) |
| Mounting |
Panel/surface mount |
| Dimensions (W×H×D) |
170 × 275 × 145 mm |
| Weight |
Approx. 8.5 kg |
| Certifications |
CE, UL, IEC 60947, RoHS |
| Max. Operating Voltage |
1000 V AC |
Good Service in WTL:
> We offer high quality, fast delivery, competitive price for Servo Drives and Motors.
> Please send your RFQ to get the latest price.
> Normally, we will ship the items in 1-2 weeks after receive the payment.
> We can ship to you by UPS/DHL//EMS/Fedex. Please contact us and we will use your preferred ways.
> We have a large stock and the prices are variable, so sometimes the prices we post are not accurate. If needed, please contact us for specific prices.
Liability:
WTL is not liable for any personal injury or property damage resulting from the use of this equipment. It is
buyer's responsibility as to the safe handling & operation of this equipment and to verify equipment is
compliance to their machinery.
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