Product Overview
The 3RH1921-1HA22 is a high-performance auxiliary contact block designed for use with series contactors and control relays in low-voltage power distribution and industrial automation systems. It provides additional signal and control contacts to expand the functionality of main switching devices, ensuring reliable operation in harsh industrial environments.
Key Features
- 2 normally open (NO) + 2 normally closed (NC) contact configuration for flexible control circuit design
- Rated operational current up to 10A, rated insulation voltage 690V, suitable for most low-voltage control systems
- Standard DIN rail mounting compatible with 3RH/3RT series contactors, easy and fast installation
- High-temperature resistant thermoplastic housing with flame retardant properties, IP20 protection grade
- Silver alloy contact material ensures low contact resistance and long electrical service life
- Complies with IEC 60947-5-1 international standards for industrial control devices
Specifications
| Parameter | Value |
|---|---|
| Model Number | 3RH1921-1HA22 |
| Contact Configuration | 2NO + 2NC |
| Rated Operational Current (AC-15) | 10A |
| Rated Insulation Voltage | 690V |
| Mounting Type | DIN Rail / Front Mounting |
| Contact Material | Silver Alloy |
| Protection Grade | IP20 |
| Operating Temperature Range | -25°C to +70°C |
Applications
This auxiliary contact block is widely used in industrial automation control systems, motor control centers, power distribution cabinets, lifting equipment control panels, conveyor systems, and various low-voltage switchgear assemblies. It is ideal for signal transmission, interlock control, status indication, and logic control circuits in manufacturing, mining, construction, and energy industries.
Package Contents
- 1 x 3RH1921-1HA22 Auxiliary Contact Block
- 1 x Installation Instruction Manual
- 1 x Anti-static Packaging Bag
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