NIETZ WELDING MACHINE C/W ACC MMA 300ST

The NIETZ MMA 300ST is a heavy-duty, portable inverter stick welding machine designed for professional use. The notation "C/W ACC" indicates it comes complete with standard accessories.

Key Features
-IGBT Inverter Technology: Built with advanced IGBT power devices to provide enhanced arc stability, minimal spatter, and superior weld reliability.
-Dual Voltage Flexibility: Highly adaptable unit compatible with both single-phase (AC220V) and three-phase (AC415V) power networks.
-Electrode Versatility: Compatible with both acid and basic type welding rods. It easily handles diameters of 2.5mm, 3.2mm, and 4.0mm.
-Built-in Self-Protection: Equipped with automatic overheat and overcurrent safety functions to extend machine life.
-Gasless Operation: Uses standard stick welding (MMA) process, meaning external shielding gas is completely unnecessary.

Standard Accessories Included (C/W ACC)
-1 x 300A Earth Clamp (with 3-meter cable)
-1 x 300A Electrode Holder (with 3-meter cable)

Technical Specification Table
At AC220V (1 Phase) | At AC415V (3 Phase)
-Input Voltage: AC220V ± 15% (50/60Hz) | AC415V ± 15% (50/60Hz)
-Input Power: 10.8 kW | 12.8 kW
-Rated Input Current: 49.3 A | 58.4 A
-Output Current Range: 30 A ~ 220 A | 30 A ~ 250 A
-Rated Output Voltage: 28.8 V | 30.0 V
-No-Load Voltage: 60 V | 60 V
-Duty Cycle: 60% | 60%
-Insulation & Protection: IP21 S / Class F | IP21 S / Class F
-Machine Dimensions: 460 x 206 x 335 mm | 460 x 206 x 335 mm
-Net Weight: 14.5 kg | 14.5 kg

主要特征
-IGBT 逆变技术：采用先进的 IGBT 功率器件，能显著提升电弧稳定性，减少飞溅，确保焊接的高质量与高安全性。
-双电压灵活转换：具备极强的电网适应能力，同时支持单相（AC220V）与三相（AC415V）电源输入。
-广泛的焊条适用性：适用于酸性和碱性等多种类型的焊条。推荐使用的焊条直径为 2.5mm、3.2mm 以及 4.0mm。
-内置自动保护：具备过热及过流自我保护功能，可有效防止机器烧毁，延长使用寿命。
-无需气体保护：采用手工电弧焊（MMA / Stick 焊接）工艺，作业时完全不需要外接保护气体。

随机标准配件 (C/W ACC)
-1 x 300A 接地夹（连 3米电缆线）
-1 x 300A 电焊钳 / 焊枪（连 3米电缆线）

技术参数表
在 AC220V (单相) 状态下 | 在 AC415V (三相) 状态下
-输入电压: AC220V ± 15% (50/60Hz) | AC415V ± 15% (50/60Hz)
-输入功率: 10.8 kW | 12.8 kW
-额定输入电流: 49.3 A | 58.4 A
-输出电流调节范围: 30 A ~ 220 A | 30 A ~ 250 A
-额定输出电压: 28.8 V | 30.0 V
- 空载电压: 60 V | 60 V
-暂载率 (负载持续率): 60% | 60%
-绝缘及防护等级: IP21 S / F 级 | IP21 S / F 级
-机器外形尺寸: 460 x 206 x 335 mm | 460 x 206 x 335 mm
-机器净重: 14.5 kg | 14.5 kg