Sharman SM30SWX Switch Mode Power Supply 30A Continuous, 5-15V Adjustable DC

The Sharman SM30SWX is a robust, switch-mode regulated DC power supply delivering 30A continuously over 8 hours — making it an ideal bench power supply for CB radios, amateur radio transceivers, and other 12V DC equipment. With an adjustable output voltage of 5–15V DC, it covers a wide range of equipment requirements. Built-in over-current protection activates automatically at 33.5A (±0.5A), and the ultra-low ripple voltage of just 5mV RMS ensures clean, stable power with no interference to sensitive radio equipment. Cooled by an inbuilt fan and protected by a T5A fuse. Accepts UK mains input of AC 220–240V (50Hz).

Key Features

• 30A continuous output (8 hours rated)
• Adjustable DC output: 5–15V
• Ultra-low ripple: 5mV RMS — clean power for sensitive radio equipment
• Automatic over-current protection at 33.5A (±0.5A)
• Switch-mode design — efficient and lightweight
• Efficiency: ~80%
• Output voltage fluctuation: <2%
• Inbuilt cooling fan
• T5A fuse protection
• UK mains input: AC 220–240V ±5% (50Hz)
• Compact dimensions: 210 x 110 x 260mm (W x H x D)
• Weight: 2.7kg
• Ideal for CB radios, amateur radio transceivers & 12V DC equipment

Technical Specifications

• Input voltage: AC 220–240V ±5% (50Hz)
• Output voltage: DC 5–15V adjustable (unbalanced)
• Output current: 30A continuous (8 hours)
• Over-current protection: 33.5A ±0.5A (automatic)
• Ripple voltage: 5mV RMS (rated load)
• Output voltage fluctuation: <2%
• Efficiency: ~80%
• Fuse: T5A
• Cooling: Inbuilt fan
• Dimensions: 210 x 110 x 260mm (W x H x D)
• Weight: 2.7kg