Megger CB-832 Primary Current Injection Test Set

Megger CB-832 Primary Current Injection Test Set

The Megger CB-832 is a self-contained test set designed to test circuit breakers and overload relays by primary current injection. It incorporates a variable high-current output with the control circuitry and instrumentation needed to test thermal, magnetic and solid-state motor overload relays, moulded-case circuit breakers and ground-fault trip devices. A bright digital ammeter and a crystal-controlled timer give accurate current and trip-time measurement, making the CB-832 a practical tool for verifying low-voltage protection devices in the field and workshop.

Key features of the Megger CB-832 test set

• High-current primary injection – switch-selected ranges 0–500 A, 0–125 A and 0–25 A (up to 1800 A for short durations).
• Tests overload devices – thermal, magnetic and solid-state motor overload relays; moulded-case breakers (to 225 A); ground-fault trip devices.
• Accurate ammeter – 3½-digit LED, 0–1999 A, ±1% with read-and-hold memory.
• Precision timer – crystal-controlled 5-digit LED timer, ±0.005%, resolving to 1 ms.
• More checks – current-transformer ratio verification and panelboard ammeter/voltmeter checks.
• Self-contained & portable – 120/240 V single-phase input, ~34 kg.

Megger CB-832 applications

• Primary-injection testing of thermal, magnetic and solid-state overload relays.
• Moulded-case circuit-breaker and ground-fault trip-device testing.
• CT ratio verification and panel-meter checks.

What’s in the box – Megger CB-832

• Megger CB-832 test set
• Output leads/cables
• Documentation

Exact leads/accessories vary by order; confirm with MME when purchasing.

Why buy the Megger CB-832 from MME in UAE

MOHAMMAD MAHDI Electronics Trading LLC (MME) supplies genuine Megger circuit-breaker and relay test equipment across the UAE and the GCC, with application support and after-sales service. Contact MME for pricing and availability of the CB-832 test set.