ABB 1SAZ721201R1051 Thermal overload relay

Product Information: ABB 1SAZ721201R1051 Thermal Overload Relay

Detailed Specifications:

• Model: 1SAZ721201R1051

• Type: Thermal Overload Relay

• Rated Voltage: 24 V DC to 690 V AC

• Rated Current Range: 0.1 A to 1.0 A

• Operating Time: Typically between 3 to 10 seconds, depending on load conditions

• Operating Temperature Range: -25°C to +60°C

• Protection Type: Overload protection

• Contact Type: 1 Normally Open (NO) contact

• Mounting Type: DIN rail mount

• Dimensions: 72 x 45 x 100 mm

• Weight: 0.2 kg

• Ingress Protection: IP20

• Certifications: CE, UL, TÜV (Complies with international safety standards)

Product Advantages and Features:

1. Reliable Overload Protection: The ABB 1SAZ721201R1051 thermal overload relay provides precise overload protection, effectively safeguarding motors from damage caused by excessive current, thus extending the lifespan of motors and related equipment.

2. Wide Current Range: It supports a rated current range of 0.1 A to 1.0 A, suitable for protecting various small motors and equipment, catering to different application needs.

3. High Temperature Adaptability: With a wide operating temperature range of -25°C to +60°C, it operates stably under various environmental conditions, making it suitable for harsh environments.

4. Easy Installation and Maintenance: The relay is designed for DIN rail mounting, making it easy to install in standard electrical control panels, saving installation time and labor costs.

5. Safe and Reliable Design: With an IP20 protection rating, it effectively prevents electrical shock and the ingress of external materials, ensuring the long-term safe operation of the device.

6. International Certifications: Complies with CE, UL, and TÜV certifications, ensuring global electrical equipment safety standards and suitability for a wide range of markets and environments.

Applications:

• Motor Protection: Widely used in motor control systems to provide overload protection, preventing motors from being damaged due to excessive current.

• Industrial Automation: Protects various equipment from overload in industrial automation systems, ensuring stable operation.

• Pump and Fan Control: Used in the protection of pumps, fans, and other equipment, preventing damage due to overload and ensuring continuous stable operation.

• HVAC Systems: Applied in HVAC systems for overload protection in air conditioning and refrigeration equipment, ensuring normal system operation.

• Power Distribution Systems: Protects equipment in power distribution systems, preventing faults caused by overload and current instability.

Precautions:

1. Proper Wiring: Ensure the relay is wired correctly according to the wiring diagram to avoid malfunction due to incorrect connections.

2. Regular Inspection: Periodically inspect the relay's contacts and electrical connections to ensure normal operation and prevent failures due to aging or poor contact.

3. Load Requirements: Ensure that the rated current of the relay matches the operating current of the motor to avoid relay failure due to mismatched loads.

4. Environmental Suitability: Avoid exposing the relay to extreme temperatures, humidity, or corrosive environments to extend the device's lifespan.

5. Safety Protection: When used in harsh environments, ensure that the device's protection rating meets the installation requirements, and provide extra protection in high humidity, high temperature, or corrosive gas environments.