| Main | |||
| Range | UEM5Z3 | ||
| Product Name | UEM5Z3 | ||
| Device Short Name | UEM5Z3-250 | ||
| Product or Component Type | Circuit breaker | ||
| Device Application | Distribution | ||
| Poles Description | 3P、4P | ||
| Rated Current [In] | 250 A at 40 °C | ||
| Rated Operational Voltage[Ue] | 400 V AC 50 Hz | ||
| Network Type | AC | ||
| Network Frequency | 50 Hz | ||
| Suitability for Isolation | Yes conforming to EN/IEC 60947-2 | ||
| Utilisation Category | Category A | ||
| Breaking Capacity | L | ||
| Rated Ultimate Short-Circuit Breaking Capacity [Icu] | L：35kA Icu at 400 V AC 50 Hz conforming to IEC 60947-2 | ||
| Rated Service Short-Circuit Breaking Capacity[Ics] | L：25 kA Ics at 400 V AC 50 Hz conforming to IEC 60947-2 | ||
| Arcing Distance (mm) | ≤50mm | ||
| Trip Unit Technology | Electronic | ||
| Trip Unit Protection Functions | LCD（overload long time delay + short circuit short time delay + short circuit instantaneous + pre-alarm protection） | ||
| Control Type | Operated by handle Operated by motorized operating mechanism | ||
| Circuit Breaker Mounting Mode | Fixed Plug-in type | ||
| Complementary | |||
| Rated Insulation Voltage [Ui] | 800 V AC 50Hz | ||
| Rated Impulse Withstand Voltage [Uimp] | 8 kV | ||
| Mechanical Durability | 7000 cycles | ||
| Electrical Durability | 1000 cycles at 400 V In | ||
| Mounting Position | Horizontal and vertical flat on the back | ||
| Connection Pitch | 35 mm | ||
Long-Time Pick-up Adjustment Type Ir (thermal protection) | Adjustable | ||
Long-Time Protection Pick-up Adjustment Range [Ir] | 40A、50A、63A、70A、80A、90A、100A（In=100A） 100A、125A、140A、160A、180A、200A、225A、250A（In=100A） | ||
Long-Time Protection Delay Adjustment Type tr | Adjustable | ||
Long-Time Protection Delay Adjustment Range [tr] | 12s、36s、60s、80s、100s、OFF | ||
| Instantaneous Protection Pickup Adjustment Type Ii | Adjustable | ||
Instantaneous Protection Pick-up Adjustment Range [Ii] | （3、4、5、6、7、8、9、10、11、12） xIr、OFF | ||
| Short-Time Protection Pick-up Adjustment Type Isd | Adjustable | ||
| Short-Time Protection Pick-up Adjustment Range[Isd] | (2、3、4、5、6、7、8、9、10、11、12) xIr、OFF | ||
Short-Time Protection Delay Adjustment Type tsd | Adjustable | ||
Short-Time Protection Delay Adjustment Range [tsd] | 0.1s、0.2s、0.3s | ||
| Pre-Alarm Protection Pick-up Adjustment Range [Ip] | （0.4～1）xIr | ||
| Electrical Accessory Types | Alarm contact Shunt release Auxiliary contact Motor-operated mechanism | ||
| Width | 105mm（3P）、140mm（4P） | ||
| Height | 165 mm | ||
| Depth | 101 mm | ||
| Net Weight | 2.1 kg（3P）/2.5 kg（4P） | ||
| Environment | |||
| Standards | EN/IEC 60947 | ||
| Product Certifications | CCC CB UKCA CE | ||
| Pollution Degree | 3 conforming to IEC 60664-1 | ||
| Ambient Air Temperature for Operation | -25…70 °C | ||
| Ambient Air Temperature for Storage | -40…70 °C | ||
| Relative Humidity | 0…95 %（25℃） | ||
| Operating Altitude | 0...2000 m without derating 2000 m...4000 m with derating | ||
| Packing Units | |||
| Unit Type of Package | PCE | ||
| Number of Units in Package 1 | 1 | ||
| Package Height 1 | 16.8cm | 16.8cm | |
| Package Width 1 | 18.7cm | 21.1cm | |
| Package Length 1 | 21.1cm | 22.2cm | |
| Package Weight 1 | 2.5kg | 3.37kg | |
| Unit Type of Package 2 | BB1 | ||
| Number of Units in Package 2 | 8 | 8 | |
| Package Height 2 | 35.7cm | 36.1cm | |
| Package Width 2 | 38.5cm | 43.3cm | |
| Package Length 2 | 43.5cm | 45.7cm | |
| Package Weight 2 | 20kg | 27kg | |
| Offer Sustainability | |||
| China RoHS Regulation | China RoHS declaration Product out of China RoHS scope. Substance declaration for your information. | ||
Main Documentation
The Product is Compatible With
Product Characteristics
| Mutiple functions： With multiple functions such as overload, short circuit short delay, short circuit instantaneous protection,overvoltage/undervoltage protection, phase loss protection, terminal over temperature, remote tripping, electrical parameter measurement, fault analysis and recording, fault alarm, and RS485 communication. |
| Safety ：Overload, overvoltage, undervoltage, phase loss, overtemperature and other protection parameters can be set for refined protection; short circuit backup protection adopts mechanical protection, fast action and stable breaking. |
| Intelligentization： Remote multiple type information collection and multiple scheme control meet the needs of the Internet of Things and energy monitoring. |
| High reliability：The plastic base is made of thermosetting composite material, with good arc resistance, insulation, and temperature resistance; the operating mechanism adopts mature MCCB mechanism, which is stable and reliable. PCB board adopts anti-interference design to meet EMC requirements. |
| Easy installation： Adopt modular design, can be installed on standard 35mm rail; control power and RS485 communication using plug in connection, and a variety of communication wire accessories are optional. |
Technical Parameters
Products of the same type
UEM5Z3-250
MCCB