RS PRO Current Transformer 250 A 21mm Bore Surface Mount, 1A Secondary, 50-60Hz 171-8772

RS PRO 171-8772 Current Transformer is a compact, encapsulated square-type device housed in robust polycarbonate casing designed for precise current measurement and monitoring in electrical systems. It features a 21mm bore diameter suitable for cable and busbar applications and supports a primary current of 250 A with a standardized 1 A secondary current output.

This surface-mount current transformer is engineered to operate reliably within a temperature range of -5°C to 55°C and supports frequency operation at 50 to 60 Hz, making it compatible with various industrial and commercial electrical installations. The transformer complies with international standards IEC 60044-1, IEC 61010-2, IEC 61869-1, and meets UL 94 V-0 flammability requirements, ensuring safety and regulatory adherence.

Key features include sealable terminal covers to prevent unauthorized access, multiple mounting options, and a high degree of accuracy with cost-effective moulded case construction. It offers rated continuous thermal current of 1.2 times the primary current and can withstand short-time thermal currents up to 40 kA for 1 second, evidencing its ruggedness in high fault scenarios.

The device's dimensions are 70mm in length, 50mm in width, and 30mm in depth, enabling easy installation in constrained spaces. This current transformer is ideal for use in industrial automation, process control systems, electrical metering, and protection circuits where accurate current sensing is critical.

Manufactured in India, it assures quality and compliance for demanding electrical environments. Installation versatility and robust construction make this RS PRO transformer an excellent choice for engineers and maintenance professionals.

Encapsulated square type current transformer with polycarbonate casing for durability. Sealable terminal covers ensure secure connection and prevent tampering. Wide operating temperature range from -5°C to 55°C for various environmental conditions.

Compliant with IEC 60044-1, IEC 61010-2, IEC 61869-1 and UL 94 V-0 standards. Surface mount type with dimensions 70mm length, 50mm width, and 30mm depth. Designed for frequencies between 50Hz and 60Hz suitable for both industrial and commercial use.

Cost-effective with a comprehensive class accuracy for reliable current measurement. Rated thermal and short time currents support robust operation up to specified limits. Manufactured in India ensuring quality control under strict standards.

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