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1SBH136001R2144 ABB NFZ44E-21 Electronic Coil Contactor 44A 48V AC Coil
ABB 1SBH136001R2144 NFZ44E-21 is an 8-pole AC/DC-operated contactor relay with 4NO + 4NC auxiliary contacts, a 24–60 V AC and 20–60 V DC control range and built-in surge protection.
£90.64
Why Choose the ABB NFZ44E-21 Contactor Relay?
The ABB 1SBH136001R2144, type NFZ44E-21, is a compact contactor relay designed for switching auxiliary and control circuits in industrial automation, machinery and electrical control systems. Part of ABB’s NFZ contactor relay range, it incorporates an electronic coil interface that accepts a wide control-voltage range, helping simplify installation across different control applications.
The NFZ44E-21 features four normally open and four normally closed auxiliary contacts (4NO + 4NC) in an 8-pole contactor relay arrangement. Its electronic coil interface supports a 24–60 V AC at 50/60 Hz and 20–60 V DC control voltage range, providing flexible operation for both AC and DC control systems.
With a 16 A conventional free-air thermal current, auxiliary circuit ratings up to 690 V AC and built-in surge protection, the NFZ44E-21 provides dependable auxiliary switching without requiring additional suppressors. Its compact 45 mm wide design supports efficient installation in industrial control panels.
Key Advantages
- Compact contactor relay for auxiliary and control circuit switching.
- 4NO + 4NC contact configuration provides extensive control flexibility.
- 24–60 V AC and 20–60 V DC control supply range reduces coil selection requirements.
- Electronic coil interface manages wide control-voltage variations.
- Built-in surge protection eliminates the need for additional suppressors.
- Suitable for PLC-controlled automation and industrial control applications.
Key Features
- ABB NFZ contactor relay range.
- NFZ44E-21 product type.
- 8-pole contactor relay.
- 4NO + 4NC auxiliary contact configuration.
- 24–60 V AC 50/60 Hz control circuit voltage.
- 20–60 V DC control circuit voltage.
- Electronic coil interface for wide voltage acceptance.
- 16 A conventional free-air thermal current.
- 690 V AC rated operational voltage for auxiliary circuits.
- Mechanically linked auxiliary contacts compliant with IEC 60947-5-1.
- Screw-terminal connections.
Reliable Auxiliary Switching for Industrial Automation
Contactor relays such as the ABB NFZ44E-21 provide electrically operated contacts for switching auxiliary and control circuits. The combination of normally open and normally closed contacts allows flexible integration into automation, signalling and interlocking systems.
The NFZ range combines electronic coil technology with built-in surge protection, allowing simplified system design and dependable operation in industrial control environments. Its mechanically linked auxiliary contacts support applications where reliable feedback and control switching are required.
Typical Applications
- Industrial automation control panels.
- PLC-controlled switching systems.
- Motor control auxiliary circuits.
- Machine interlocking and signalling circuits.
- Building and industrial electrical systems.
- OEM control assemblies.
Technical Specifications
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| Terminal Type | Screw | |
|---|---|---|
| Coil Type | AC, AC/DC, DC | |
| Coil Voltage Range | 24 V, 42–48 V, 60–72 V | |
| Poles | 8-pole | |
| Coil / Supply Voltage | 24 V AC, 24 V DC, 48 V AC, 48 V DC, 60 V DC | |
| Device Type | Contactor relay | |
| Auxiliary Contacts | 4NO + 4NC | |
| Current AC-1 | 16 A | |
| Manufacturer | ABB | |
| Series | NFZ | |
| Model | NFZ44E-21 | |
| ABB order code | 1SBH136001R2144 | |
| Product type | Contactor relay | |
| Number of poles | 8 | |
| Auxiliary contact configuration | 4NO + 4NC | |
| Rated control supply voltage | 24–60 V AC / 20–60 V DC | |
| Control circuit | AC or DC operated | |
| Rated operational voltage, auxiliary circuit | 690 V AC | |
| Conventional free-air thermal current | 16 A | |
| Rated impulse withstand voltage | 6 kV | |
| Rated operational current AC-15 | 4 A at 230 / 240 V AC | |
| Connection type | Screw terminals | |
| Protection rating | IP20 | |
| Mounting type | DIN rail or screw mounting | |
| Dimensions (H × W × D) | 86 × 45 × 110.5 mm | |
| Weight | 0.36 kg |
Frequently Asked Questions
What is the ABB 1SBH136001R2144?
The ABB 1SBH136001R2144 is the order code for the NFZ44E-21 contactor relay, designed for switching auxiliary and control circuits.
What contact configuration does the ABB NFZ44E-21 have?
The NFZ44E-21 has four normally open and four normally closed auxiliary contacts (4NO + 4NC).
What control voltage does the ABB NFZ44E-21 use?
The NFZ44E-21 uses a 24–60 V AC and 20–60 V DC control supply range.
What is the current rating of the ABB NFZ44E-21?
The contactor relay has a 16 A conventional free-air thermal current rating.
Does the ABB NFZ44E-21 include surge protection?
Yes. The NFZ44E-21 includes built-in surge protection and does not require an additional suppressor.
Trusted Control Technology from ABB
ABB NFZ contactor relays provide flexible and reliable switching solutions for auxiliary and control circuits in industrial automation, machinery and electrical control systems.
