3RH1140-1BB40_SIEMENS_PRODUCT_吉林易择科技技术发展有限公司

The 3RH1140-1BB40 is a compact electromechanical contactor relay from Siemens' SIRIUS 3RH1 series, designed for control applications in industrial automation systems. With its 4-pole switching capability, it's particularly suitable for multi-circuit control tasks.

400-887-3214

DESCRIBE

Technical Specifications
1. Electrical Parameters
Rated Operational Current (Ie):

AC-1: 9A @ 400V AC (resistive loads)

AC-3: 4A @ 400V AC (motor loads)

Rated Insulation Voltage (Ui): 690V AC

Control Circuit Voltage: 24V DC (standard for this model)

Contact Configuration: 4 NO (Normally Open)

2. Performance Characteristics
Mechanical Life: 10 million operations

Electrical Life:

AC-3: 300,000 operations

AC-1: 1 million operations

Switching Capacity:

AC-15: 4A @ 230V AC

DC-13: 0.5A @ 24V DC

3. Mechanical Data
Mounting: Standard 35mm DIN rail

Protection Class: IP20 (requires enclosure)

Ambient Temperature Range: -25°C to +60°C

Dimensions (W×H×D): 45×90×78 mm

Weight: Approx. 200g

Key Features
4-pole design for complex switching tasks

High switching reliability with silver alloy contacts

LED status indicator (optional)

Modular design for easy expansion

Screw-type terminals for secure connections

Typical Applications
Motor control circuits

Lighting control systems

HVAC equipment

Industrial automation panels

Power distribution systems

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