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1SBH137005R1444 ABB NF44EK-14 Contactor 44A 250-500V AC/DC Coil
ABB 1SBH137005R1444 NF44EK-14 contactor relay with 4 NO and 4 NC auxiliary contacts and 250–500 V AC/DC control voltage for industrial control applications.
£64.95
Why Choose the ABB 1SBH137005R1444 NF44EK-14 Contactor Relay?
The ABB 1SBH137005R1444 is a compact and reliable contactor relay designed for switching auxiliary and control circuits in industrial automation, electrical panels and machine control systems. As part of the advanced ABB NF contactor relay series, it provides dependable switching performance with a wide-range electronic coil interface, integrated surge protection and efficient push-in spring terminal connections.
The NF44EK-14 contactor relay features an eight-pole mechanically linked contact arrangement with 4 normally open and 4 normally closed auxiliary contacts, making it suitable for complex control, signalling and automation applications. Its electronic coil interface supports a wide AC/DC control voltage range, allowing flexible use across different industrial control systems.
With a 250–500 V AC 50/60 Hz and 250–500 V DC control supply, 4 NO + 4 NC auxiliary contacts and a 3 A rated operational current, the ABB 1SBH137005R1444 is ideal for industrial control panels, automation systems and auxiliary switching applications.
Key Advantages
- Compact ABB NF contactor relay designed for industrial control applications.
- Four normally open and four normally closed auxiliary contacts for advanced circuit control.
- 250–500 V AC/DC control voltage range for flexible installation requirements.
- Integrated surge protection removes the need for additional suppressor components.
- Push-in spring terminals enable fast and secure wiring.
- Suitable for DIN rail and screw mounting installations.
Key Features
- ABB NF44EK-14 contactor relay.
- 8-pole mechanically linked contactor relay configuration.
- 4 normally open (NO) + 4 normally closed (NC) auxiliary contacts.
- 250–500 V AC 50/60 Hz control supply.
- 250–500 V DC control supply.
- 3 A rated operational current at 400 V.
- 16 A conventional free-air thermal current.
- Push-in spring terminal connection technology.
- Built-in coil surge protection.
Reliable Switching for Industrial Control Systems
Contactor relays such as the ABB 1SBH137005R1444 provide dependable switching of auxiliary and control circuits used within automation systems, motor control assemblies and industrial electrical equipment. Their compact construction allows efficient panel installation while providing the contact flexibility required for advanced control applications.
The ABB NF series combines flexible coil voltage handling, integrated protection features and simplified wiring solutions, making these contactor relays suitable for machine builders, panel manufacturers and automation engineers requiring dependable control components.
Typical Applications
- Industrial automation control panels.
- PLC interface and auxiliary switching circuits.
- Machine building and OEM equipment.
- Motor control and starter assemblies.
- Industrial signalling systems.
- Electrical monitoring and control applications.
Technical Specifications
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| Terminal Type | Push-in | |
|---|---|---|
| Coil Type | AC, AC/DC, DC | |
| Coil Voltage Range | 380–440 V, 460–500 V | |
| Poles | 8-pole | |
| Coil / Supply Voltage | 380 V AC, 400 V AC, 415 V AC, 440 V AC, 480 V AC, 500 V AC | |
| Device Type | Contactor relay | |
| Auxiliary Contacts | 4NO + 4NC | |
| Current AC-1 | 16 A | |
| Manufacturer | ABB | |
| Series | NF Contactors / Contactor Relays | |
| Model | NF44EK-14 | |
| Part number | 1SBH137005R1444 | |
| Product type | Contactor relay | |
| Auxiliary contacts | 4 NO + 4 NC | |
| Number of poles | 8 | |
| Rated operational current | 3 A | |
| Conventional free-air thermal current | 16 A | |
| Control voltage | 250–500 V AC 50/60 Hz | |
| DC control voltage | 250–500 V DC | |
| Rated operational voltage | 690 V AC | |
| Rated insulation voltage | 690 V | |
| Rated impulse withstand voltage | 6 kV | |
| Connection type | Push-in spring terminals | |
| Mounting type | DIN rail / screw mounting | |
| Protection rating | IP20 | |
| Dimensions (H × W × D) | 92.3 × 45 × 110.5 mm | |
| Weight | approx. 0.37 kg |
Frequently Asked Questions
What is the ABB 1SBH137005R1444 used for?
The ABB 1SBH137005R1444 is a contactor relay used for switching auxiliary and control circuits in industrial automation and electrical systems.
How many auxiliary contacts does the NF44EK-14 have?
The contactor relay provides 4 normally open (NO) and 4 normally closed (NC) auxiliary contacts.
What control voltage does the ABB NF44EK-14 support?
The NF44EK-14 supports a 250–500 V AC 50/60 Hz and 250–500 V DC control supply.
What type of terminals does this contactor relay use?
The ABB 1SBH137005R1444 uses push-in spring terminals for quick and reliable auxiliary circuit wiring.
Where is the ABB NF44EK-14 typically installed?
The contactor relay is typically installed inside electrical control panels, automation systems and industrial machinery assemblies.
Trusted by Industrial Automation Professionals
ABB NF contactor relays are widely used by automation engineers and machine builders to deliver reliable auxiliary switching, flexible installation and seamless integration into modern industrial control systems.
