General
EZC Series Certified to IEC 60947 & EN 60947-2 standards, the EZC series offers versatile protection for 1P/2P/3P/4P (EZC100/250) and 3P/4P (EZC400/630) circuits. Featuring manual control with optional switch or extended rotary handle, it supports fixed front/rear wiring. Robust insulation withstands 690V rated voltage and 6kV impulse voltage, operating at AC 440V 50/60Hz. Engineered for longevity with 15,000 mechanical cycles and 5,000 electrical cycles (440V). Designed for Category A general applications, its compact IP20-rated construction ensures reliable performance in industrial and commercial installations.
Technical Parameters
| Item No. | EZC100 EZC250 | EZC400 EZC630 |
| Number of poles |
| 1P, 2P, 3P, 4P | 3P, 4P |
| Control | Manual | with toggle/with direct or |
| extended rotary handle |
| Connections | Fixed | front connections/rear connections |
| Electrical characteristics as per IEC60947 and EN60947-2 |
|
| Rated insulation voltage | Ui | 690V |
| Rated impulse withstand voltage | Uimp | 6 KV |
| Rated operational voltage | Ue | AC 50/60Hz,440V |
| Isolation Function |
| — |
| Utilization category |
| A |
| Endurance(C-O cycles) | Mechanical | 15000 10000 | 10000 |
| Electrical 440V | 5000 5000 | 4000 |
| Protection |
|
| Release |
| Thermal magnetic | Thermal magnetic Electronic |
| Overload protection |
| ■ | ■ Ir(In x....) |
| Short-circuit protection |
| ■ | ■ Isd(Ir x....) |
| Earth-leakage protection |
| — | — |
| Indication and control auxiliaries |
|
|
|
| Auxiliary contact AX and Alarm contact AL | ■ |
| Combined AX + AL |
| ■ |
| SHT shunt relesae |
| 24V, 220V, 380V |
| UVR under-voltage release |
| ■ |
| Installation/connection |
|
| Accessories | Terminal extensions | ■ | ■ |
| Terminal shields | ■ | ■ |
| Phase barriers | ■ | ■ |
| EZC100B | EZC100F | EZC100N | EZC100H | EZC250F | EZC250N | EZC250H |
| Number of poles |
| 3 | 3 | 1 | 3-4 | 1 | 2-3-4 | 3 | 3 | 2-3 |
| Rated current (A) | at 40 °C | 15, 16, 20, 25,30, 32, 40, 45,50, 60, 63, 75,80, 100 | 100, 125, 150,160, 175, 200,225, 250 |
| AC 50/60 Hz | 110/130 V | 10 | 25 | 25 | 25 | 50 | 100 | 25 | 50 | 85 |
| 220/230/240 V | 10 | 25 | 18 | 25 | 25 | 100 | 25 | 50 | 85 |
| 380 V | 7.5 | 10 | 2.5 | 18 | 5 | 30 | 18 | 25 | 36 |
| 400/415 V | 7.5 | 10 | 2.5 | 15 | 5 | 30 | 18 | 25 | 36 |
| 440 V | 5 | 7.5 | - | 10 | - | 20 | 15 | 20 | 25 |
| 550 V | 2.5 | 5 | - | 5 | - | 10 | 5 | 8 | 10 |
| DC | 125 V (1P) | - | 5 | 5 | 5 | 10 | 10 | 5 | 20 | 30 |
| 250V
(2P in series） | - | 5 | - | 5 | - | 10 | 5 | 20 | 30 |
|
| EZC250N | EZC250H | EZC400N | EZC400H | EZC630N | EZC630H |
| Number of poles |
| 4 | 4 | 3-4 | 3-4 | 3-4 |
| 3-4 |
| Rated current (A) | at 40 °C | 63, 80, 100, 125,150, 160, 175, 200, 225, 250 | 320, 350, 400 | 400, 500, 600 |
| AC 50/60 Hz | 220/230 V | 50 | 85 | 40 | 70 | 40 | 70 |
| 380 V | 25 | 36 | 36 | 50 | 36 | 50 |
| 400/415 V | 25 | 36 | 36 | 50 | 36 | 50 |
| 440 V | 20 | 25 | 36 | 50 | 36 | 50 |
| 550 V | 8 | 10 | - | - | - | - |
| DC | 125 V (1P) | 20 | 30 | - | - | - | - |
| 250V
(2P in series) | 20 | 30 | - | - | - | - |
100 Dimensional drawing
250 Dimensional drawing
400 Dimensional drawing
Yueqing Lovadon Electric Co., Ltd.
