1SBL296261R2100 ABB AF38ZB-40-00-21 – AF38ZB 38A 4 Pole AF Series Contactor No Auxiliary Contact

Why Choose the ABB 1SBL296261R2100 AF38ZB Contactor?

The ABB 1SBL296261R2100, model AF38ZB-40-00-21, is a compact and energy-efficient 4-pole AC/DC operated contactor developed for demanding industrial and railway rolling stock applications. As part of the ABB AF38ZB contactor series, it combines four normally open main contacts with ABB's electronic coil technology to provide dependable power switching across a wide control voltage range.

The AF38ZB range is engineered to meet demanding rolling stock requirements, including resistance to shock and vibration and enhanced fire and smoke performance. Its compact 45 mm width supports space-efficient side-by-side installation, while the electronic coil interface manages substantial control voltage variations and helps reduce energy consumption during operation.

With a rated operational current of 55 A at 690 V AC under AC-1 at 40 °C, the AF38ZB-40-00-21 is designed primarily for switching non-inductive or slightly inductive loads and general power circuits. It can also control motors up to 11 kW at 400 V AC under AC-3, while its wide-range coil accepts 24–60 V AC at 50/60 Hz or 20–60 V DC.

Key Advantages

• Compact 4-pole contactor designed for railway and industrial power switching.
• 55 A AC-1 rated operational current at 690 V and 40 °C.
• Controls motors up to 11 kW at 400 V AC under AC-3.
• 24–60 V AC / 20–60 V DC wide-range electronic coil accommodates substantial control voltage variations.
• Designed to meet key railway rolling stock standards for demanding onboard installations.
• Integrated surge protection and low coil energy consumption help simplify compact control system design.

Key Features

• ABB AF38ZB railway contactor series.
• 4 normally open main power contacts.
• 55 A rated operational current at 690 V AC under AC-1 at 40 °C.
• 22 A rated operational current at 380–400 V AC under AC-3 at 60 °C.
• 11 kW motor switching capability at 400 V AC under AC-3.
• 24–60 V AC 50/60 Hz / 20–60 V DC control voltage.
• Electronic coil interface designed to manage substantial control voltage fluctuations.
• Built-in surge protection for simplified control circuit design.
• Shock and vibration resistance suitable for railway rolling stock applications.
• Compact 45 mm wide housing with screw terminal connections.

Reliable Power Switching for Railway and Industrial Systems

ABB AF38ZB contactors are designed for installations where reliable electrical switching must be maintained despite challenging environmental and supply conditions. Their electronic coil interface handles substantial DC voltage fluctuations, including control voltages commonly supplied by railway batteries, while also accepting sinusoidal AC control supplies within the specified operating range.

The AF38ZB-40-00-21 combines this flexible coil technology with a compact four-pole configuration, integrated surge protection and railway-qualified construction. Its resistance to shock and vibration, wide operating temperature range and enhanced fire and smoke performance make it particularly suitable for electrical equipment installed aboard railway rolling stock as well as demanding industrial systems.

Typical Applications

• Railway rolling stock electrical systems.
• Passenger and driver cabin electrical equipment.
• Train auxiliary power and control circuits.
• Industrial power distribution and switching panels.
• Non-inductive and slightly inductive load switching.
• OEM machinery and demanding industrial automation systems.