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Hager 3 Phase RCBO

Explore the Hager 3 Phase RCBO range at Electrical4Less, featuring electronic 3P+N circuit breakers with switched neutral, 10kA breaking capacity and Type A residual-current protection. These compact, three-module devices combine overload, short-circuit and earth-leakage protection for suitable three-phase electrical installations.

Our Hager Three Phase RCBO selection includes C Curve and D Curve models, rated from 10A to 63A across the range, with 30mA, 100mA and 300mA sensitivities. Browse the available Hager 3 pole RCBO options below and select the correct current rating, tripping characteristic and residual-current sensitivity for your installation.

Showing 1–20 of 26 results

Hager ASD410U 10A D Curve 30mA RCBO

Hager | ASD410U | 3 Phase RCBO | 10kA | D Curve | 30mA Type A | 10A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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SKU: ASD410U
£93.50
Hager ASD416U 16A D Curve 30mA RCBO

Hager | ASD416U | 3 Phase RCBO | 10kA | D Curve | 30mA Type A | 16A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: ASD416U
£93.50
Hager ASD420U 20A D Curve 30mA RCBO

Hager | ASD420U | 3 Phase RCBO | 10kA | D Curve | 30mA Type A | 20A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: ASD420U
£93.50
Hager ASD425U 25A D Curve 30mA RCBO

Hager | ASD425U | 3 Phase RCBO | 10kA | D Curve | 30mA Type A | 25A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: ASD425U
£93.50
Hager ASD432U 32A D Curve 30mA RCBO

Hager | ASD432U | 3 Phase RCBO | 10kA | D Curve | 30mA Type A | 32A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: ASD432U
£96.75
Hager ASD440U 40A D Curve 30mA RCBO

Hager | ASD440U | 3 Phase RCBO | 10kA | D Curve | 30mA Type A | 40A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: ASD440U
£97.55
Hager ASX420U 20A C Curve 30mA RCBO

Hager | ASX420U | 3 Phase RCBO | 10kA | C Curve | 30mA Type A | 20A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: ASX420U
£85.55
Hager ASX425U 25A C Curve 30mA RCBO

Hager | ASX425U | 3 Phase RCBO | 10kA | C Curve | 30mA Type A | 25A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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SKU: ASX425U
£85.55
Hager ASX432U 32A C Curve 30mA RCBO

Hager | ASX432U | 3 Phase RCBO | 10kA | C Curve | 30mA Type A | 32A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: ASX432U
£87.95
Hager ASX440U 40A C Curve 30mA RCBO

Hager | ASX440U | 3 Phase RCBO | 10kA | C Curve | 30mA Type A | 40A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: ASX440U
£88.75
Hager ASX450U 50A C Curve 30mA RCBO

Hager | ASX450U | 3 Phase RCBO | 10kA | C Curve | 30mA Type A | 50A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: ASX450U
£90.50
Hager ASY416U 16A C Curve 100mA RCBO

Hager | ASY416U | 3 Phase RCBO | 10kA | C Curve | 100mA Type A | 16A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: ASY416U
£93.55
Hager ASY425U 25A C Curve 100mA RCBO

Hager | ASY425U | 3 Phase RCBO | 10kA | C Curve | 100mA Type A | 25A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: ASY425U
£93.95
Hager ASY432U 32A C Curve 100mA RCBO

Hager | ASY432U | 3 Phase RCBO | 10kA | C Curve | 100mA Type A | 32A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: ASY432U
£96.75
Hager ASY440U 40A C Curve 100mA RCBO

Hager | ASY440U | 3 Phase RCBO | 10kA | C Curve | 100mA Type A | 40A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: ASY440U
£97.55
Hager ASY450U 50A C Curve 100mA RCBO

Hager | ASY450U | 3 Phase RCBO | 10kA | C Curve | 100mA Type A | 50A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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SKU: ASY450U
£99.50
Hager ASY463U 63A C Curve 100mA RCBO

Hager | ASY463U | 3 Phase RCBO | 10kA | C Curve | 100mA Type A | 63A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: ASY463U
£100.95
Hager ASZ410U 10A C Curve 300mA RCBO

Hager | ASZ410U | 3 Phase RCBO | 10kA | C Curve | 300mA Type A | 10A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: ASZ410U
£102.75
Hager ASZ416U 16A C Curve 300mA RCBO

Hager | ASZ416U | 3 Phase RCBO | 10kA | C Curve | 300mA Type A | 16A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: ASZ416U
£102.75
Hager ASZ420U 20A C Curve 300mA RCBO

Hager | ASZ420U | 3 Phase RCBO | 10kA | C Curve | 300mA Type A | 20A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: ASZ420U
£103.50

Showing 1–20 of 26 results

Hager Three Phase RCBOs for Commercial Electrical Distribution

The Hager three phase RCBO range provides combined residual-current and overcurrent protection in a compact 3P+N configuration. Each device protects all three phase conductors and incorporates a switched neutral, allowing the circuit conductors to be disconnected together.

Unlike separate MCB and RCD arrangements, these electronic RCBOs combine both protective functions in one device. Their three-module format makes them a practical option for compatible three-phase distribution equipment where space and circuit protection are important considerations.

Hager 3P+N RCBO – Three Protected Poles and Switched Neutral

A Hager 3P+N RCBO has three overcurrent-protected phase poles and a switched neutral. Although customers may search for a Hager 3 pole RCBO or Hager 4 pole RCBO, the correct manufacturer designation for this range is 3P+N.

The products occupy three DIN rail modules, with a nominal width of 53.4mm. The specified operational voltage is 400–415V AC, and the range features Type A residual-current detection.

Hager Three Phase RCBO Current Ratings and Protection Types

Electrical4Less offers Hager electronic three-phase RCBOs with different current ratings, tripping curves and residual-current sensitivities. Choose the correct combination according to the circuit design, connected equipment and applicable electrical regulations.

Hager 30mA Three Phase RCBO – C Curve

The Hager 30mA 3 Phase RCBO C Curve range provides Type A residual-current protection and a magnetic tripping characteristic typically associated with moderate inrush currents.

  • Models: ASX416U, ASX420U, ASX425U, ASX432U, ASX440U, ASX450U and ASX463U
  • Current ratings: 16A, 20A, 25A, 32A, 40A, 50A and 63A
  • Residual-current sensitivity: 30mA
  • Tripping characteristic: C Curve
  • Breaking capacity: 10kA

Hager D Curve Three Phase RCBO – 30mA

The Hager D Curve RCBO range is intended for suitably designed circuits where higher starting or magnetising currents may occur, including certain motors, transformers and industrial equipment.

  • Models: ASD410U, ASD416U, ASD420U, ASD425U, ASD432U and ASD440U
  • Current ratings: 10A, 16A, 20A, 25A, 32A and 40A
  • Residual-current sensitivity: 30mA
  • Tripping characteristic: D Curve
  • Breaking capacity: 10kA

Hager 100mA Three Phase RCBO – C Curve

The Hager ASY series provides 100mA Type A residual-current protection for appropriately designed three-phase circuits. The required sensitivity must be determined by the protection requirements of the installation.

  • Models: ASY410U, ASY416U, ASY420U, ASY425U, ASY432U, ASY440U, ASY450U and ASY463U
  • Current ratings: 10A to 63A across the listed models
  • Residual-current sensitivity: 100mA
  • Tripping characteristic: C Curve

Hager 300mA Three Phase RCBO – C Curve

The Hager ASZ series offers 300mA Type A residual-current protection for three-phase distribution applications where this sensitivity is specified by the electrical design. A 300mA device should not be treated as a direct substitute for 30mA additional protection.

  • Models: ASZ410U, ASZ416U, ASZ420U, ASZ425U, ASZ432U, ASZ440U, ASZ450U and ASZ463U
  • Current ratings: 10A to 63A across the listed models
  • Residual-current sensitivity: 300mA
  • Tripping characteristic: C Curve

Understanding B, C and D Curve RCBO Characteristics

The tripping curve determines how the overcurrent protection responds to high currents. Selecting the correct characteristic is essential for protecting equipment while meeting circuit disconnection requirements.

  • B Curve: Typically operates magnetically at 3–5 times rated current. Often used for circuits with relatively low inrush currents. No B Curve models are included in this particular Hager three-phase RCBO selection.
  • C Curve: Typically operates magnetically at 5–10 times rated current. Commonly specified for suitably designed commercial circuits with moderate inrush currents.
  • D Curve: Typically operates magnetically at 10–20 times rated current. Considered for circuits with high starting currents, subject to fault-current and disconnection-time verification.

The tripping curve is separate from the residual-current sensitivity. For example, a 30mA D Curve RCBO combines 30mA residual-current protection with D Curve overcurrent characteristics.

Hager 10kA 3 Phase RCBO Technical Features

  • Electronic residual-current and overcurrent protection
  • 3P+N arrangement with switched neutral
  • Three overcurrent-protected phase poles
  • Type A residual-current detection
  • 10kA short-circuit breaking capacity
  • Three DIN rail modules, 53.4mm wide
  • 400–415V AC rated operational voltage
  • 50–60Hz operating frequency
  • IP20 protection rating
  • DIN rail mounting
  • Screw-terminal and biconnect connection arrangement

These are range characteristics based on the supplied Hager product information. Always consult the specific product datasheet and installation instructions before selecting or installing a device.

Choosing Hager Distribution Boards and Circuit Protection

When selecting a Hager three phase RCBO, confirm the board series, busbar connection arrangement, rated current, breaking capacity, residual-current sensitivity and available installation space. Compatibility must be verified using Hager’s manufacturer documentation.

Explore our Hager Three Phase Distribution Boards for commercial distribution applications, or browse the full Hager Electrical Range for additional circuit protection and accessories.

Hager 3 Phase RCBO Frequently Asked Questions

Does Hager manufacture a genuine three-phase RCBO?

Yes. The Hager ASD, ASX, ASY and ASZ series listed here are electronic 3P+N RCBOs with three protected phase poles and a switched neutral. They provide combined residual-current and overcurrent protection within one device.

What is the difference between a Hager 3 pole RCBO and a 3P+N RCBO?

The Hager 3P+N configuration includes three overcurrent-protected phase poles and an additional switched neutral. The neutral is switched but is not a fourth overcurrent-protected pole.

What is the difference between 30mA, 100mA and 300mA?

These values represent the rated residual operating current. A 30mA RCBO can provide additional protection where required, while 100mA and 300mA devices may be selected for other specified protection functions. The correct sensitivity depends on the installation design and applicable regulations.

Can a Hager D Curve RCBO replace a C Curve RCBO?

Not automatically. D Curve devices have a higher instantaneous magnetic tripping range. The installation must be assessed to confirm that sufficient fault current is available and that the required disconnection times can be achieved.

Are these Hager RCBOs compatible with all Hager TPN boards?

No. Compatibility should be confirmed for the particular distribution board, busbar system and device series. Do not assume that every Hager 3P+N RCBO fits every Hager TPN distribution board.






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