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Allen Bradley MSR211P Motor Protection Relay with Phase Failure

Allen Bradley MSR211P Motor Protection Relay with phase failure protection.

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ManufacturerAllen Bradley

Part numberMSR211P

Type Motor Protection Relay

Model MSR211P

Manufacturer Allen Bradley

Protection Phase Failure, Thermal Overload

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12-month warranty

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Same-day dispatch

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Worldwide delivery

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Veteran-owned

CAGE: 9NK75

Phase failure protection Thermal overload protection Adjustable trip settings Manual reset Robust design

Product description

The Allen Bradley MSR211P is a motor protection relay designed to protect electric motors from phase failure and unbalance conditions, in addition to thermal overloads. This relay is crucial for preventing damage caused by abnormal power supply situations, ensuring motor longevity and reliable operation. It offers adjustable settings for tailored protection.

This relay is essential for motor applications in industrial environments where power quality can be a concern, such as remote sites, variable load conditions, or areas prone to grid instability. Industries include mining, agriculture, and general manufacturing.

Stanlo Automation, a veteran-owned surplus parts distributor, provides the Allen Bradley MSR211P. We offer a reliable and cost-effective source for industrial automation components, helping you maintain uptime and protect your valuable equipment.

Technical specifications

Type	Motor Protection Relay
Model	MSR211P
Manufacturer	Allen Bradley
Protection	Phase Failure, Thermal Overload
Reset	Manual

Common applications

Remote industrial sites

Variable load conditions

Mining operations

Agriculture

General manufacturing

Motors sensitive to power quality

Compatible systems

Compatible with various motor starter configurations and control systems.

Also known as

MSR 211P, Allen Bradley MSR 211P, Motor phase failure relay

Replaces / compatible with

This relay is designed for applications requiring phase failure and thermal overload protection within the Allen Bradley MSR series.

Technical note

Expert tip

Ensure proper connections for all three phases to the MSR211P for accurate phase failure and unbalance detection.

What happens next?

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Frequently asked questions

How does the MSR211P protect against phase failure?

The MSR211P detects phase imbalances or loss of a phase in the incoming power supply. By monitoring the current and voltage across the phases, it can quickly trip the motor circuit, preventing damage that can occur from operating under unbalanced or incomplete power conditions.