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Siemens SIRIUS 3RV1742-5QD10

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3RV1742-5QD10

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The Siemens 3RV1742-5QD10 circuit breaker is designed for robust performance in various electrical applications. With a continuous current rating of 70 A at 400 V AC, it supports efficient switching in AC-3 utilization scenarios while maintaining compliance with UL 489 standards.

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Technical specifications for 3RV1742-5QD10

ManufacturerSiemens
Product LineSIRIUS
Part Number3RV1742-5QD10
UPC754554966014
Weight4.00 lbs (1.81 kg)
SeriesContactors
Device CategoryCircuit Breaker
Continuous Current Rating70 A at 400 V AC (AC-3 utilization category)
Short-Circuit Interrupting Capacity100 kA at 400 V AC; 65 kA at 480 V AC (UL 489 compliant)
Rated Operational Voltage690 V AC (maximum for AC-3 applications)
Impulse Withstand Voltage6 kV (surge protection capability)
Front-Side Ingress ProtectionIP20 (protection against solid objects)
Mechanical Endurance50,000 switching cycles (main contact lifespan)
Mounting Compatibility35 mm DIN rail
Overload Release SettingFixed thermal trip threshold at 70 A (non-adjustable)
Terminal ConfigurationScrew-type connectors (main circuit); box terminals for conductors
Conductor Compatibility2.5–50 mm² (stranded); 2.5–16 mm² (solid); AWG 10–2 (flexible)
Pole Configuration3-pole design (three-phase power systems)
Ambient Operating Range-20°C to +60°C (functional temperature limits)
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The Siemens 3RV1742-5QD10 is categorized as a circuit breaker, engineered to handle substantial electrical demands. It possesses a continuous current rating of 70 amperes in the AC-3 utilization category at 400 volts AC, making it suitable for three-phase power systems. This circuit breaker boasts impressive short-circuit interrupting abilities, rated at 100 kA for 400 V AC and 65 kA for 480 V AC, meeting UL 489 requirements.

Rated for a maximum operational voltage of 690 V AC, the 3RV1742-5QD10 ensures durability under demanding conditions. Additionally, it features an impulse withstand voltage of 6 kV, providing essential surge protection against voltage spikes. The ingress protection rating of IP20 indicates that it safeguards against solid objects of considerable size.

With a mechanical endurance of up to 50,000 switching cycles, the main contact lifespan supports longevity in operating conditions. It is compatible with standard 35 mm DIN rail mounting configurations for easy installation. Dimensions for this model are 168 mm in height, 70 mm in width, and 174 mm in depth.

The overload release is preset with a fixed thermal trip threshold at 70 A, which is not adjustable for flexibility in various applications. Terminal connections consist of screw-type connectors for the main circuit, along with box terminals for conductor attachment. This unit supports conductor compatibility ranging from 2.5 to 50 mm² for stranded conductors and 2.5 to 16 mm² for solid conductors, along with flexible wiring up to AWG 10-2. The 3RV1742-5QD10 operates effectively within an ambient temperature range of -20°C to +60°C, making it versatile for numerous industrial applications.