Schneider Overload Protection Circuit Breaker (Thermal Overload) - Class A 10 - 12 : 18 Amps - LRD21

The Schneider LRD21 Thermal Overload Relay provides reliable protection for electrical circuits and equipment against overloads and overheating. Its intelligent design ensures the current is disconnected when the limit is exceeded, safeguarding motors and electrical devices while extending their lifespan.

Specifications

• Brand: Schneider
• Product Type: Thermal Overload Relay
• Model Number: LRD21
• Rated Current: 12–18 A
• Class: A 10

Features

• Thermal adjustment dial with manual-auto reset selector
• Test switch for simulating faults, reset and stop buttons
• Indicator and 1NO+1NC auxiliary contacts for fault signaling
• Protected settings via lockable transparent cover
• Secure connection via screw clamp terminals for direct connection to 3-Pole LC1D18-D38 contacts

Usage

• Protects motors from overloads that can cause overheating or damage
• Safeguards other electrical equipment from excessive current
• Suitable for industrial environments and motor/automation control systems
• Works alongside other circuit breakers to provide complete protection
• Compatible with commercial and residential applications requiring overload protection

FAQ

How does the LRD21 relay protect motors and equipment?

• It automatically disconnects the current when the allowed load is exceeded, protecting motors and electrical devices from damage.

Is the LRD21 suitable for industrial applications?

• Yes, it is suitable for industrial, commercial, and residential environments to ensure effective protection.

Can the LRD21 be easily installed?

• Yes, its simple design allows installation on DIN rails or via screws without advanced technical skills.

What applications is the LRD21 compatible with?

• Motor control systems, industrial machinery, HVAC systems, pumps, and any electrical equipment needing overload protection.