RS PRO Current Transformer 7500A Primary 5A Secondary 21mm Bore 50 - 60Hz 171-8776

The RS PRO 171-8776 Current Transformer is engineered for dependable metering and protection in electrical automation and process control systems. With a primary current rating of 7500A and a secondary output of 5A, this transformer is specifically built to deliver accurate performance in high-current industrial setups.

Designed with a 21mm square bore, it accommodates busbar, cable, and wall mounting, making it suitable for diverse installation scenarios. The unit operates reliably within a frequency range of 50 to 60Hz and is compatible with both standard industrial power frequencies. Its construction employs polycarbonate encapsulation, offering excellent durability and electrical insulation, which is essential in demanding environments.

Meeting international standards such as IEC 61010-2, IEC 60044-1, IEC 61869-1, and UL94V-0, this transformer upholds strict safety, quality, and performance benchmarks. It features wire-type terminals for straightforward integration with existing systems, while its busbar, wall, or cable mount options ensure flexibility for varying system designs. The device is equipped with sealable terminal covers, supporting tamper resistance and compliance in regulated installations.

Operationally, the RS PRO 171-8776 functions efficiently between -5°C and +55°C, ideal for environments ranging from climate-controlled panels to more exposed manufacturing settings. It sustains a rated continuous thermal current of 1.2 times In, and for protection scenarios, it can withstand a short-time thermal current up to 60 times In for 1 second (maximum 40kA), ensuring resilience during electrical faults or transient overloads.

With its 0.72/3 kV or 0.72/4 kV rated isolation and a bore engineered for easy passage of busbars or cables, the transformer is suited for modern industrial applications, including energy monitoring, switchgear, and automation panels. The wire sealable terminal cover supports secure system operation in compliance-oriented installations.

This RS PRO unit is intended for electrical engineers, facility maintenance teams, and industrial system integrators demanding reliable current measurement for monitoring, metering, or protection tasks in sectors such as manufacturing, process automation, energy distribution, and infrastructure projects.

Browse more current transformers, metering components, and industrial automation solutions from RS PRO under the Current Transformers category at EnvMart.