Megger B10E Trip Coil Tester – AC/DC Voltage Power Supply
Reliable, Portable Power for Circuit Breaker Testing
The Megger B10E is a portable AC/DC voltage power supply designed specifically for testing medium and high-voltage circuit breakers. It delivers stable, ripple-free power to trip and close coils, as well as spring-charging motors, without relying on potentially hazardous substation batteries.
Whether during installation or routine servicing, the Megger B10E offers a safe, accurate way to simulate real-world operating conditions by supplying voltage that closely matches what circuit breakers use in actual service. This makes it ideal for professionals working in substations or industrial environments.
Why Use the Megger B10E?
Using substation batteries for testing comes with risks—both to the tester and the equipment. The Megger B10E removes that risk by providing a controlled, high-quality power source. Its voltage output is consistent under load, ensuring reliable test results.
One of its key functions is to help test the minimum trip voltage—a method recommended by global standards like IEC 62271-100 and ANSI C37.09. This test checks whether coils, solenoids, and breaker mechanisms respond correctly at low voltages, helping to identify sluggish or faulty components before failure occurs in service.
Megger B10E Key Features
- ✅ Safe and Stable Power – Ripple-free, high-quality output for accurate circuit breaker testing.
- ✅ Wide Voltage Range – Continuously adjustable output from 24 V to 300 V DC or 24 V to 260 V AC.
- ✅ Separate Output Terminals – Dedicated outputs for close coil, trip coil, and spring-charging motors.
- ✅ Trigger Function – Built-in manual or external trigger for minimum trip voltage testing.
- ✅ Supports Breaker Analysers – Easily integrated into automated test sequences.
Simple Control Panel – 19 Key Functions
- DC output for closing/tripping coils
- AC output for closing/tripping coils
- Fuse for AC outputs (4 A)
- Switch between AC/DC outputs
- Switch between coil and motor outputs
- Motor DC outputs (up to 18 A)
- Motor voltage activation button
- Current shunt output
- Digital voltmeter
- Trigger signal input
- Manual trigger button
- Trigger input selector
- Reset button for overload protection
- Variable transformer
- Master ON/OFF switch
- Power inlet
- DC motor output breaker
- Ground terminal
- Power selector (115/230/135/250 V AC)
Specifications at a Glance
| Feature | Details |
| Input Power | 115 / 230 (135 / 250) V AC, 50/60 Hz |
| Max Power Consumption | 3300 W |
| Output Voltage (DC) | 24–300 V (ripple <2%) |
| Output Voltage (AC) | 24–260 V |
| Output Current | Up to 18 A (motor); up to 10 A (coils) |
| Protection | Overload, thermal cut-outs, short-circuit |
| Operating Temp | 0°C to +50°C |
| Weight | 20.8 kg (29.3 kg with transport case) |
| Display | Digital LCD |
What comes with the Megger B10E?
- (BG-29002) Megger B10E AC/DC Substation Voltage Power Supply
And with the BG-29092 model you also receive:
- (GA-00032) Cable Set
- (GD-00182) Rugged Transport Case
❓ Frequently Asked Questions (FAQ)
Q: Can I use the Megger B10E for both AC and DC testing?
A. Yes, it supports both AC (24–260 V) and DC (24–300 V) outputs.
Q: Is it safe to use in substations?
A. Absolutely. It is designed for substation use and includes built-in protection features like overload cut-outs and short-circuit protection.
Q: What if I need to test the spring-charging motor?
A. The Megger B10E has a separate output just for that, supporting up to 18 A.
Q: Can I use it with a breaker analyser?
A. Yes, it’s compatible with breaker analysers for fully automated testing.
Order the Megger B10E Today
The Megger B10E is the trusted choice for high-voltage professionals who need reliable, portable, and safe power for testing critical breaker functions. Ensure accuracy, avoid risks, and meet testing standards - all with one compact unit.
🔌 Order Now and make your circuit breaker testing faster, safer, and more efficient.