| Parameter | Value |
|---|
| Model | NDZ3AT-300C |
| Contact Arrangement | 1 Form A (1NO) · non-polar |
| Contact Rating | 300A (with ≥100mm2 copper conductor) · 1000A continuous · 25s · 900A · 30s · 600A · 120s · 450A · 300s · 300A continuous |
| Load Voltage | DC12 ~ DC1000V · minimum applicable load 12V 1A |
| Max. Breaking Current | 2,000A @DC450V · 2,000A @DC750V · 1,500A @DC1000V (1 op) |
| Contact Resistance | ≤ 0.5 mΩ (at 300A) (23°C) |
| Coil Voltage | DC12V (non-polar) |
| Operate / Release Time | Operate: ≤9V (12V coil) · ≤18V (24V coil) · Release: ≥1.2V · ≥2.4V (23°C) |
| Endurance (Mech. / Elec.) | 200,000 ops / 75,000 ops (DC20V, 140A) |
| Dielectric / Insulation | 1,000 MΩ initial @DC1000V · 1min (≥50 MΩ after test) - between open main contacts and between contacts · coil · 3,000 V a.c. (50/60 Hz, 1min) initial · 2,260 V a.c. after test · leakage ≤1mA |
| Sealing / Ambient | Functional: 196 m/s2 (off) · 588 m/s2 (closed), 11ms half-sine · Destructive: 588 m/s2, 6ms · Vibration: 49 m/s2, 10-500 Hz sine · Ceramic brazed sealing · sealed inert-gas arc chamber · auxiliary contact: without · 40°C ~ +85°C · 5-95% RH · altitude ≤5,000m · vertical or horizontal mounting |
| Terminal / Weight | ≈ 385 ± 15 g (per official specification) |
