Megger MS2A 115 Circuit Breaker Relay Test Set

The Megger MS2A 115 is a versatile and high-precision test set designed for the accurate testing and commissioning of circuit breakers and protective relays. Built for reliability and ease of use, this test set ensures that electrical protection systems perform optimally and safely.

Equipped with robust measurement capabilities, the MS2A 115 supports primary and secondary injection tests, allowing technicians to simulate real operating conditions and verify the correct operation of relays and circuit breakers. Its intuitive interface and clear readouts make testing straightforward, reducing setup time and minimizing errors.

Designed for field and laboratory use, the Megger MS2A 115 is portable yet rugged, capable of withstanding demanding industrial environments. Its versatile connectivity and wide measurement range accommodate a variety of relay types and breaker configurations, making it an essential tool for electrical engineers, maintenance teams, and testing professionals.

With the Megger MS2A 115, users can ensure the reliability, safety, and efficiency of electrical systems while simplifying the testing process. Whether for routine maintenance, commissioning, or troubleshooting, this test set delivers precision, speed, and confidence.

Key Features:

Primary and secondary injection testing for relays and circuit breakers
High-accuracy measurements and fast response
Portable, rugged, and suitable for field or lab use
Intuitive interface with clear, easy-to-read outputs
Compatible with a wide range of breaker and relay types
Reduces testing time and improves operational reliability

Technical Specifications

Input Voltage: 120 V or 240 V AC, 50/60 Hz, single-phase (select at ordering)
Output Ranges: Continuous across four ranges:
• 0–5 A at 120 V max
• 0–25 A at 24 V max
• 0–120 A at 6 V max
• 0–240 A at 3 V max
High Current Capability: Provides up to 750 A for short durations, ideal for instant trip testing
Ammeter Measurement:
• 3½-digit LED display with large 7.62 mm digits
• Switch-selected ranges: 0–1.999 / 19.99 / 199.9 / 750 A
• Accuracy: ±1 % of reading ±1 digit (high range), ±1 % of range ±1 digit (low range)

Timer & Control

Digital Multirange Timer: Crystal-controlled, resolution up to 1 ms
Timer Display: 5-digit LED, large 7.62 mm digits
Timer Ranges:
• 0–99.999 s
• 0–999.99 s
• 0–99999 cycles
Timer Control Modes: Automatic start/stop based on output and relay status with selectable modes (Current Actuated / Normally Closed / Normally Open)

Other Features

Ammeter Modes: Memory or Normal, holds peak value for short-duration currents
Solid-State Output Circuit: Uses TRIAC for higher reliability with no mechanical contact maintenance
Applications: Testing overcurrent relays, motor overload relays, ground-fault devices, and molded-case circuit breakers up to 125 A

Dimensions & Weight

Dimensions: ~9.9 × 14 × 11 in (25 × 35 × 28 cm)
Weight: ~33 lb (~15 kg)

Megger MS2A 115

Megger MS2A 115 For Sale