RSB5-125 Series Isolator Switch (RSB5 Miniature Isolator Switch)
Scope of Application
The RSB5-125 series isolator switch (hereinafter referred to as the isolator switch) is designed for alternating current (AC) circuits with a frequency of 50Hz or 60Hz and a rated operating voltage of 230V/400V or below. It is primarily used as the main switch for terminal electrical appliances and can also control various electric motors, small power appliances, lighting, and more. It is widely used in industrial enterprises, high-rise buildings, commercial establishments, and residential areas.
This product complies with the GB14048.3 standard.
Technical Parameters
? Rated Current: 20A, 32A, 63A, 100A
? Rated Operating Voltage: 230/400V AC
? Isolator Switch
? Handle with indicator barcode for clear open/close indication.
? Green indicator shows contacts are open; Red indicator shows contacts are closed.
? Rated Short-Circuit Making Capacity:
? 1066A (le: 20-63A)
? 1692A (le: 100A) peak value
? Rated Short-Time Withstand Current:
? 756A (le: 20-63A)
? 1200A (le: 100A) for 1 second
? Mechanical Life: 8500 operations
? Electrical Life: 1500 operations
? Utilization Category: AC-22A
? Terminal area: Suitable for wires ≤ 50mm2 for 20-100A models.
? Compliance with Standards: IEC60947-3 / GB14048.3
? Certification: CCC Certification
Current Level Screw Specifications
? M7:
? Rated Torque: 4.0 N·m
? Maximum Torque: 5.5 N·m
? Standard Torque: 3.5 N·m
Normal Working and Installation Conditions
? Ambient Temperature: -25°C to +60°C
? Altitude: ≤ 2000 meters
? Pollution Level: Level 2
? Utilization Category: AC-22A
? Installation Category: II, III
? Installation Method: Mount on TH35-7.5 type rail, with the installation surface’s tilt not exceeding 5°.
? Wiring Method: Use screws to tighten the connections, with a tightening torque of 2.5 N·m.
Structural Features
The RSB5 isolator switch employs a dual-break point direct-actuating contact system. For high currents, two parallel sets of contacts are used to increase the current capacity while fully utilizing power compensation. The handle’s spring-loaded mechanism ensures quick switching, overcoming the slow manual operation problem, greatly improving work efficiency. The contact status is clearly indicated with labeled markers to prevent incorrect operation and improve safety.
Installation and Usage
? Before installation, verify that the switch matches the actual operating conditions.
? Install the switch onto the rail according to the diagram; pushing the handle up indicates the switch is on (red indicator), while pulling it down indicates the switch is off (green indicator).
? Incoming power should be connected to the top of the switch, with the outgoing connection at the bottom. Ensure copper wires are tightly screwed and not exposed outside the terminal.
? Before powering on, manually operate the switch several times to ensure smooth and reliable operation with no obstruction.
? The RSB5 isolator switch must be protected from rain during storage, transportation, and use.
? It can withstand short-circuit currents under non-normal circuit conditions for a certain period and handle infrequent overload switching. However, it is not intended for breaking fault currents.
Rated Operating Current (Ie) and Nominal Copper Wire Cross-Section (mm2)
? 32A: 6mm2
? 63A: 16mm2
? 100A: 35mm2
? 125A: 50mm2
