1SBH137001R1131 nf31e-11 24-60v 50/60hz 20-60v -dc ABB Contactor relay

Why Choose the ABB 1SBH137001R1131 NF31E-11 Contactor Relay?

The ABB 1SBH137001R1131, also known as the NF31E-11, is a compact and highly reliable 4-pole contactor relay engineered for auxiliary switching and industrial control circuit applications. As part of the ABB NF contactor relay series, this unit incorporates advanced AF electronic coil technology, allowing stable operation across a wide control voltage range while reducing panel energy consumption and improving operational reliability.

Designed for industrial automation systems, the NF31E-11 is ideal for machine control panels, HVAC systems, motor control centres and signalling circuits. ABB’s electronically controlled coil technology helps eliminate contactor chattering caused by voltage dips and unstable power networks, ensuring dependable switching performance in demanding industrial environments.

With a 4-pole mechanically linked contact configuration, integrated 3 NO + 1 NC auxiliary contacts and a wide-range 24-60 V AC / 20-60 V DC control circuit, the ABB 1SBH137001R1131 provides flexible installation and reliable auxiliary switching for industrial automation and control systems.

Key Advantages

• Compact 4-pole industrial contactor relay.
• Wide-range electronic control coil for flexible installation.
• 3 NO + 1 NC mechanically linked contacts.
• Reliable operation during voltage dips and unstable supply conditions.
• Reduced panel energy consumption using ABB AF technology.
• Suitable for industrial control and auxiliary switching applications.

Key Features

• ABB NF31E-11 contactor relay.
• 4-pole configuration.
• 3 normally open and 1 normally closed contacts.
• Wide control voltage range: 24-60 V AC / 20-60 V DC.
• 690 V IEC rated operational voltage.
• 6 A operational current.
• Mechanically linked auxiliary contacts compliant with IEC standards.
• Electronic coil technology with built-in surge protection.
• Compact DIN rail and panel mounting design.
• Screw terminal connections for secure installation.

Technical Specifications

• Manufacturer: ABB
• Series: NF Contactor Relays
• Model: NF31E-11
• Product code: 1SBH137001R1131
• Product type: Contactor relay
• Number of poles: 4P
• Contact configuration: 3 NO + 1 NC
• Control voltage: 24-60 V AC 50/60 Hz / 20-60 V DC
• Rated operational voltage: 690 V AC
• Rated operational current AC-15: 6 A at 24/127 V
• Conventional thermal current: 16 A
• Rated insulation voltage: 690 V IEC / 600 V UL
• Rated impulse withstand voltage: 6 kV
• Maximum mechanical switching frequency: 6000 cycles per hour
• Maximum electrical switching frequency: 1200 cycles per hour AC-15
• Mounting type: DIN rail / panel mounting
• Terminal type: Screw terminals
• Dimensions (W × H × D): approx. 45 × 86 × 77 mm
• Weight: approx. 0.27 kg
• Standards: IEC/EN 60947-1, IEC/EN 60947-5-1, UL 508

Reliable Auxiliary Switching for Industrial Automation

Industrial contactor relays such as the ABB NF31E-11 are designed for switching auxiliary and control circuits in automation systems. Their compact construction and mechanically linked contacts provide dependable signalling and interlocking functionality for industrial control panels and machine automation systems.

The ABB NF series uses advanced AF electronic coil technology to improve operational stability and reliability. The wide-range control voltage allows one relay version to support multiple supply voltages, simplifying inventory management and reducing installation complexity in industrial environments. Built-in surge suppression also helps protect connected PLC outputs and control electronics.

Typical Applications

• Industrial automation systems.
• HVAC and ventilation control systems.
• Motor control centres and auxiliary circuits.
• Machine control and interlocking systems.
• Industrial control panels.
• General-purpose switching applications.

Trusted by Industrial Engineers Worldwide

ABB NF contactor relays are trusted worldwide for reliable auxiliary switching performance, advanced electronic coil technology and dependable operation in demanding industrial automation systems.