3TC4417-0BP0 - ALTRI PRODOTTI - SIEMENS

⚙️ Siemens 3TC4417-0BP0 – 3TC contactor for DC switching, size 2, 32 A, 230 V AC coil

The Siemens 3TC4417-0BP0 is a 3TC contactor designed for switching DC loads, in frame size 2, with 2 main poles normally open and a rated current of 32 A in utilization categories DC-3 and DC-5.

Unlike contactors for AC, 3TC contactors are built to reliably extinguish the electric arc that forms when switching direct current. Siemens describes them as compact, high-performance devices with high contact reliability and a particularly long switching endurance.

The main circuit has screw connection and, at 440 V, provides a rated operational current of 29 A and a rated operational power of 9 kW at DC-3/DC-5. The contactor is fitted with 2 NO + 2 NC auxiliary contacts for signalling and interlocking.

The coil is AC operated, with a rated voltage of 230/220 V AC at 50 Hz and 276/264 V AC at 60 Hz. The dimensions are approximately 70 x 85 x 104 mm (W x H x D) and the weight is approximately 0.68 kg.

3TC contactors are approved for worldwide use (e.g. IEC and UL/CSA). Arc chambers, solenoid coils and surge suppressors are available as accessories.

🔧 Key features – Siemens 3TC4417-0BP0

• Type: Contactor for DC switching
• Series: Siemens 3TC
• Size: 2
• Main poles: 2 NO
• Rated current: 32 A (DC-3/DC-5)
• Rated operational current at 440 V: 29 A (DC-3/DC-5)
• Rated operational power at 440 V: 9 kW (DC-3/DC-5)
• Auxiliary contacts: 2 NO + 2 NC
• Control supply voltage: 230/220 V AC 50 Hz, 276/264 V AC 60 Hz
• Main circuit connection: Screw connection
• Dimensions (W x H x D): approx. 70 x 85 x 104 mm
• Weight: approx. 0.68 kg
• Approvals: IEC, UL/CSA
• Main function: Switching DC loads and motors on and off

🏭 Typical applications – Siemens 3TC4417-0BP0

• Starting, stopping and reversing DC motors
• Control panels for DC drives on industrial machines
• Lifting and handling equipment with DC motors
• DC supply circuits and battery systems
• Steel mills, paper mills and process lines with DC loads
• Maintenance and replacement in existing control panels

🛠️ E-Repair services for Siemens 3TC4417-0BP0

E-Repair offers a complete package of services focused on production continuity:

🚚 Product sales

✅ Standard 12-month warranty

❓ FAQ – Siemens 3TC4417-0BP0

✔️ What is the difference between a 3TC contactor such as the 3TC4417-0BP0 and a standard AC motor contactor?

The 3TC4417-0BP0 is specifically designed to switch DC loads in categories DC-3 and DC-5, where the electric arc is harder to extinguish. An AC contactor is not rated for this duty and must not be used in its place on DC circuits.

✔️ What is the difference between the 3TC4417-0BP0, the 3TC4417-0BL2 and the 3TC4417-0AB4?

The main circuit is the same: size 2, 2 poles, 32 A and 2 NO + 2 NC auxiliary contacts. The coil is different: the 3TC4417-0BP0 is operated at 230 V AC 50 Hz / 277 V 60 Hz, the 3TC4417-0BL2 at 230 V AC 50/60 Hz and the 3TC4417-0AB4 at 24 V DC. When replacing, it is essential to choose the same control supply voltage.

✔️ Can just the coil or the arc chamber of the 3TC4417-0BP0 be replaced?

Yes. For 3TC contactors, Siemens offers solenoid coils, arc chambers and surge suppressors as accessories. Before ordering, we recommend checking the Siemens catalogue for the correct spare part number for this size and control voltage.

✔️ What are the most common faults on the 3TC4417-0BP0 contactor?

The most frequent problems include worn or welded main contacts due to frequent switching under load, damaged arc chambers, coils burnt out by overvoltage or incorrect control voltage, humming caused by dirt on the magnet core surfaces and auxiliary contacts that do not switch correctly.

✔️ Can I receive the 3TC4417-0BP0 quickly to reduce machine downtime?

Yes. If available in stock, the contactor can be shipped quickly. Contact E-Repair Customer Care stating the part number and the control supply voltage of the installed contactor.

ℹ️ The information in this product sheet is general and indicative and may contain inaccuracies or errors. Before purchasing, installing or commissioning, always check the technical data in the manufacturer's official documentation or contact E-Repair.