Crompton Instruments Protector Trip Relays

Product catalog summary

Overview
Crompton Instruments provides a range of electronic control products for monitoring and protecting electrical parameters. These include Protector Trip Relays for single and three-phase systems, offering functions like over/under voltage, current, frequency, phase sequence/failure, reverse power, and more.

Features and Benefits

LED fault indication and adjustable settings for voltages, trip points, time delay, and differentials.
Compact DIN-rail enclosure with a power-on LED.
Designed to prevent nuisance tripping, ensuring asset protection and supply continuity.

Applications

Used in switchgear, distribution systems, process control, motor protection, and equipment/network protection.

AC Current Protection
These protectors offer continuous surveillance with adjustable trip points and time delay settings, providing alarms or tripping signals for deviations in current.

Technical Parameters

Universal auxiliary supply (24-240V AC/DC), adjustable trip levels (40-120% In), and time delay (0.5-10s).
Output relay contacts with high load capability and automatic reset.

AC Voltage Protection
Monitors voltage levels and provides alarms or tripping signals for deviations, used for under and over voltage detection.

Operation and Characteristics

Adjustable differential settings to reduce nuisance tripping.
Red LED indicates fault conditions, with an adjustable time delay to prevent premature operation.

Standards and Compliance

Complies with standards EN 60255-6, EN 60255-27, EN 61000-6-2, and EN 6100-6-4.

Voltage and Frequency Protection
Devices offer adjustable trip levels for under and over voltage and frequency conditions, protecting three-phase systems by de-energizing or energizing relays based on thresholds.

Phase Sequence and Failure Protection
Ensures correct phase rotation and detects phase loss or under voltage, crucial for three-phase motors.

Phase Balance and Voltage Monitoring
Monitors phase balance, sequence, and voltage levels, tripping relays for imbalances or incorrect sequences.

Technical Specifications
Includes operating frequency, voltage ranges, relay contact capabilities, and compliance with standards for reliability and safety.

Enclosure and Installation
Devices are housed in flame-retardant polycarbonate enclosures, suitable for DIN-rail mounting, designed for easy installation.

PH3 Speed Sensing Relay
Monitors engine speed and detects under-speed, over-speed, and stop conditions with adjustable set points for alarms or shutdowns.

Specifications
Features a 1mA output signal, adjustable rotation set points, and operates with a supply voltage of 12-24V DC.

Operation
Calibrated to represent nominal engine speed, with trip functions indicated by LED lights, and fail-safe operation for sensor disconnection.

Technical Parameters
Housed in a flame-retardant polycarbonate case, operates within -20 to +55°C, and complies with relevant standards.

Part Numbers
Lists part numbers for related protection systems.

Company Information
TE Connectivity specializes in products that connect and protect power and data flows, with contact information provided for the UK.

All Crompton Instruments catalogs and technical brochures

Archived catalogs

Protector Trip Relays
52 Pages
Energy KWh Meters
18 Pages

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

Brand list