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A9Z21440
Schneider A9Z21440 available at EU Automation. Get in touch today for a quick price.
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Schneider A9Z21440 is an Acti 9 iID residual current circuit breaker designed for earth leakage protection in AC electrical distribution systems. This 4-pole RCCB is rated at 40 A with 30 mA sensitivity and Type A tripping characteristics, making it suitable for detecting residual currents with both sinusoidal AC and pulsating DC components.
Designed for DIN rail installation, the A9Z21440 features a toggle actuator, left-positioned neutral pole and instantaneous earth leakage response. It operates at 380 to 415 V AC across 50/60 Hz networks and offers a rated conditional short-circuit current of 10 kA. Its compact modular format measures 91 mm high, 72 mm wide and 73 mm deep, with an 8 x 9 mm pitch width for integration into distribution boards and control panels.
The unit includes contact position indication and a local trip indicator for clear operational status. With IP20 protection, 500 V rated insulation voltage and 6 kV impulse withstand capability, the A9Z21440 is built for reliable use in low-voltage electrical installations. Its terminals support rigid and flexible conductors, with a 14 mm stripping length and 3.5 N·m tightening torque for secure connection.
Designed for DIN rail installation, the A9Z21440 features a toggle actuator, left-positioned neutral pole and instantaneous earth leakage response. It operates at 380 to 415 V AC across 50/60 Hz networks and offers a rated conditional short-circuit current of 10 kA. Its compact modular format measures 91 mm high, 72 mm wide and 73 mm deep, with an 8 x 9 mm pitch width for integration into distribution boards and control panels.
The unit includes contact position indication and a local trip indicator for clear operational status. With IP20 protection, 500 V rated insulation voltage and 6 kV impulse withstand capability, the A9Z21440 is built for reliable use in low-voltage electrical installations. Its terminals support rigid and flexible conductors, with a 14 mm stripping length and 3.5 N·m tightening torque for secure connection.
| Specification | Description |
|---|---|
| Manufacturer | Schneider |
| Part Number | A9Z21440 |
| Product Type | Residual current circuit breaker (RCCB) |
| Range | Acti 9 |
| Product Name | Acti 9 iID |
| Device Short Name | iID |
| Poles | 4P |
| Neutral Position | Left |
| Rated Current | 40 A |
| Rated Operational Voltage | 380 to 415 V AC, 50/60 Hz |
| Network Type | AC |
| Earth-Leakage Sensitivity | 30 mA |
| Earth-Leakage Protection Time Delay | Instantaneous |
| Earth-Leakage Protection Class | Type A |
| Rated Breaking and Making Capacity | 1500 A |
| Rated Conditional Short-Circuit Current | 10 kA |
| Rated Insulation Voltage | 500 V AC, 50/60 Hz |
| Rated Impulse Withstand Voltage | 6 kV |
| Control Type | Toggle actuator |
| Contact Position Indicator | Yes |
| Local Signalling | Trip indicator |
| Mounting Method | DIN rail, clip-on installation |
| Module Width | 8 x 9 mm pitches |
| Dimensions | 91 mm high x 72 mm wide x 73 mm deep |
| Product Weight | 0.37 kg |
| Colour | White |
| Mechanical Durability | 20,000 cycles |
| Electrical Durability | 15,000 cycles, AC-1 |
| Terminal Type | Double terminals for top or bottom connection |
| Conductor Capacity | 1 to 35 mm² rigid; 1 to 25 mm² flexible |
| Wire Stripping Length | 14 mm |
| Tightening Torque | 3.5 N.m |
| Standards | EN 61008-1, IEC 61008-1 |
| IP Rating | IP20 |
| Pollution Degree | 3 |
| Operating Temperature | -25 to 60 °C |
| Storage Temperature | -40 to 85 °C |
| Commodity Code | 853630 |
What type of electrical protection does this device provide?
This device is a residual current circuit breaker designed to provide earth-leakage protection. It detects residual current imbalance and trips when the leakage current reaches its rated sensitivity.
What is the rated current of this residual current circuit breaker?
The rated current is 40 A, making it suitable for circuits where a 40 amp residual current device is required.
How many poles does this device have?
It is a 4-pole device, intended for three-phase installations with neutral.
What residual current sensitivity does it have?
The device has a 30 mA earth-leakage sensitivity. This is commonly used where additional protection against electric shock is required in suitable installations.
What type of residual current protection class is it?
It is a Type A residual current circuit breaker. Type A devices are designed to detect AC residual currents and pulsating DC residual currents.
What operating voltage is this device designed for?
The device is rated for 380 to 415 V AC at 50/60 Hz, depending on the installation and applicable electrical standards.
Is the tripping action delayed?
No. This residual current circuit breaker has instantaneous earth-leakage protection, meaning it is not time-delayed.
How is the device mounted?
The device is designed for DIN rail mounting and occupies 8 modules of 9 mm pitch, with an overall width of 72 mm.
What are the physical dimensions of the device?
The device measures approximately 91 mm high, 72 mm wide and 73 mm deep. The product weight is around 0.37 kg.
What terminal capacity does it offer?
The front double terminals accept rigid conductors up to 35 mm² and flexible conductors up to 25 mm². Rear terminal capacities are lower, with rigid conductors up to 25 mm² and flexible conductors up to 16 mm².
What tightening torque should be used for the terminals?
The specified terminal tightening torque is 3.5 N.m for top or bottom connections. The recommended wire stripping length is 14 mm.
What environmental operating range does it support?
The device is rated for operation from -25 °C to 60 °C and storage from -40 °C to 85 °C.
What standards does this residual current circuit breaker conform to?
The device conforms to EN/IEC 61008-1 for residual current operated circuit-breakers without integral overcurrent protection.
Does the device include visual indication?
Yes. It includes a contact position indicator and a local trip indicator, helping users identify the operating or tripped state.
What ingress protection rating does it have?
The device is rated IP20 in accordance with IEC 60529. When installed in a suitable modular enclosure, the protection level may be IP40.
- Earth-leakage protection in three-phase electrical distribution boards
- Residual current protection for industrial control panels and machinery circuits
- Protection of commercial lighting and power circuits operating at 380 to 415 V AC
- DIN rail installation in modular switchgear assemblies
- Monitoring and disconnecting circuits where Type A residual current detection is required
- Use in building services panels for HVAC, pumps and general power distribution
- Protection for circuits supplying equipment with mixed AC and pulsating DC leakage currents
- Integration into Acti 9 electrical systems requiring a 4-pole, 40 A RCCB
- Electrical distribution upgrades where 30 mA residual current sensitivity is specified
- Panel building applications requiring compact 4-pole earth-leakage protection
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
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Jerry Schrink
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Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
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Paulo Pereira
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Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
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Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
3 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
4 months ago
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