Function and Application
NXZMN, NXZHMN series automatic transfer switches are suitable for AC 50Hz/60Hz, rated voltage 230V/240V, 400V/415V and below, rated current up to 800A three-phase four-wire dual power supply networks, which switch one or several load circuits from one power source to another to ensure normal power supply of the load circuit. This product is suitable for industrial, commercial, high-rise and residential buildings and other power consumption places.
Details Description
Parameters:
Frame current: 63/125/250/400/630/800
Usage category: AC-33iB/AC-33B
Electrical level: PC, CB
Poles: 2P/3P/4P
Controller type: A (Basic type), B (Standard type), D (Intelligent type)
Advantages/Core Functions:
01 Flexible and Convenient
Modular Design: Modular controller design innovatively realizes the transformation between integrated and separate display methods, and the controller maintenance and replacement are convenient;
Visual Window: New visual window allows multiple ways to view the on/off status of the product.
02 Safe and Reliable
Enhanced Safety: Three-position design of manual, automatic, and lockout, which prevents manual operation during automatic mode, and allows locking at the power-off position to ensure operational safety during maintenance and inspection;
Full Load Protection: Adopting an industry-first switching logic, when both power sources are abnormal, it can realize load-side power-off protection; when one power source is normal, it performs switching to ensure continuous power supply.
03 Excellent Performance
Platform Upgrade: The entire series of products use the company's latest NM5 technology platform;
Upgrade of Remote Control Switching: Enhanced 485 communication function, supports more configurable and readable communication parameters, and also adds remote control function (two options), meeting the needs of control switching applications at long and short distances;
Function Enhancement: Three types of controllers (Basic type, Standard type, Advanced type) are available, which not only meet customers' basic switching requirements, but also add frequency detection, phase sequence protection, fault alarm (E-1, E-2, E-4) that can be disabled and eliminated, configurable power priority, and meet more diversified needs for domestic and international three-phase 230V systems.
Detail Parameters
| Parameter Category | Parameter Item | Parameter Value |
|---|
| Electrical Characteristics | Frame Current (A) | 63, 125, 250, 400, 630, 800 |
| Rated Current (A) | 10、16、25、32、40、50、63; 63、80、100、125; 160、180、200、225、250; 250、315、350、400; 400、500、630; 630、700、800 |
| Rated Operating Voltage Ue (V) | AC230V/AC240V/AC400V/AC415V, 50Hz/60Hz |
| Rated Insulation Voltage Ui (V) | 800, 800, 1000, 1000, 1000, 1000 |
| Rated Impact Voltage Uimp (kV) | 8, 8, 1000, 1000, 1000, 1000 |
| Usage Category | AC-33IB (10-125A); AC-33B (10-63A); AC-33IB; AC-33IB (250-630A); AC-33B (250-350A); AC-33IB |
| Poles | 3P, 4P |
| Rated Short-Circuit Closing Capacity Icm (kA) | F:52.5 Q:75.6; F:52.5 Q:75.6; F:75.6 Q:105; F:105 Q:154; F:105 Q:154; F:105 Q:154 |
| Rated Short-Circuit Breaking Capacity Icn (kA) | F:25 Q:36; F:25 Q:36; F:36 Q:50; F:50 Q:70; F:50 Q:70; F:50 Q:70 |
| Mechanical Life (times) | 10000, 10000, 6000, 4500, 4500, 4500 |
| Electrical Life (times) | 3000, 3000, 3000, 1500, 1500, 1000 |
| Contact Operation Time (s) | ≤ 1.8, ≤ 1.8, ≤ 1.9, ≤ 2.8, ≤ 2.8, ≤ 2 |
| Transfer Operation Time (s) | ≤ 2.9, ≤ 2.9, ≤ 2.9, ≤ 4.4, ≤ 4.4, ≤ 3 |
| Switch Position | Power I, Power II, Off Position |
| Wiring Method | Top In Bottom Out, Side Same Inlet |
| Controller Model | A: Basic Type B: Standard Type D: Intelligent Type E: Special Type |
| Electrical Characteristics | Frame Current (A) | 63, 125, 250, 400, 630, 800 |
| Rated Current (A) | 10、16、25、32、40、50、63; 63、80、100、125; 160、180、200、225、250; 250、315、350、400; 400、500、630; 630、700、800 |
| Rated Operating Voltage Ue (V) | AC230/240/400/V/415V, 50Hz/60Hz |
| Rated Insulation Voltage Ui (V) | 800, 800, 1000, 1000, 1000, 1000 |
| Rated Impact Voltage Uimp (kV) | 8, 12 |
| Usage Category | AC-33IB (10-125A); AC-33B (10-63A); AC-33IB; AC-33IB (250-630A); AC-33B (250-350A); AC-33IB |
| Poles | 3P, 4P |
| Rated Short-Time Withstand Current Icw (A/30ms) | 5000A/30ms; 10000A/30ms; 10000A/50ms; 10000A/150ms; 12600A/200ms; 16000A/200ms |
| Rated Short-Circuit Closing Capacity Icm (kA) | 7650A; 17000A; 17000A; 17000A; 25200A; 32000A |
| Restricted Short-Circuit Current Iq(SCPD) (kA) | 100kA |
| Mechanical Life (times) | 10000, 10000, 6000, 4500, 4500, 4500 |
| Electrical Life (times) | 3000, 3000, 3000, 1500, 1500, 1000 |
| Contact Operation Time (s) | ≤ 1.8, ≤ 1.8, ≤ 1.9, ≤ 2.8, ≤ 2.8, ≤ 2 |
| Transfer Operation Time (s) | ≤ 2.9, ≤ 2.9, ≤ 2.9, ≤ 4.4, ≤ 4.4, ≤ 3 |
| Switch Position | Power I, Power II, Off Position |
| Wiring Method | Top In Bottom Out, Side Same Inlet |
| Controller Model | A: Basic Type B: Standard Type D: Intelligent Type E: Special Type |
