Mastervolt 81500400 – DC Master 24/24-3 DC/DC Converter (3A, 82W) – Galvanically Isolated
The Mastervolt DC Master 24/24-3 is a high-reliability isolated DC-DC converter that transforms 24 VDC input to a stabilized 27.2 VDC output with full galvanic isolation. It delivers 3 A continuously and can supply up to 4 A for short 2-minute intervals. Ideal for applications that demand electrical isolation between power sources and loads, it ensures low electromagnetic interference and greater system protection. Compact and passively cooled, it’s well-suited for marine, mobile, and sensitive industrial systems.
Main Features
- Galvanic isolation between input and output circuits
- Stabilized 27.2 VDC output voltage
- 3 A continuous output, 4 A peak (2 min)
- Touch-proof and interference-suppressed design
- Supports both negative and positive grounding configurations
- Silent operation via natural convection cooling
- Compact and lightweight (0.44 kg)
- Includes mounting bracket and installation hardware
Technical Specifications
| Parameter | Value |
|---|---|
| Input Voltage (Nominal) | 24 VDC |
| Input Voltage Range | 20–32 VDC (Max. 35 V) |
| Output Voltage (Nominal) | 27.2 VDC |
| Output Power (Nominal) | 82 W |
| Output Power (Max. 2 min) | 109 W |
| Continuous Output Current | 3 A |
| Peak Output Current (2 min) | 4 A |
| Galvanic Isolation | Yes |
| Stabilized Output | Yes |
| Cooling | Natural (passive) |
| Protection Degree | IP53 |
| Operating Temperature | -25 °C to +80 °C (derating above 30 °C) |
| DC Consumption (Idle) | <15 mA |
| Connections | Fast-on |
| Dimensions (H x W x D) | 127 x 87 x 50 mm / 5.0 x 3.4 x 2.0 in |
| Weight | 0.44 kg / 1.0 lb |
| Compliance | CE |
Package Contents
- Mastervolt DC Master 24/24-3 DC/DC Converter
- Mounting bracket
- Screws and fasteners
- Installation manual








