Littelfuse PLS240A 3 Phase Voltage Monitor 175-255V

Product Description

The Littelfuse PLS240A is engineered to offer a reliable solution for monitoring phase sequences in three-phase electrical systems. Ideal for safeguarding sensitive machinery from reverse rotation, this voltage monitor boasts an easy-to-install profile and an operational efficiency that cater to various industrial applications.

• Protects equipment by ensuring correct phase sequencing
• Isolated SPDT output relay energizes with correct phase sequence
• Automatic reset feature rectifies phase sequence errors

Product Highlights

This voltage monitor helps maintain the operational integrity of systems such as hoists, pumps, and conveyors. It is essential in environments requiring frequent electrical reconnections or compliance with specific codes.

Product Information

Standard Information

• Voltage Compatibility: 175 to 255VAC
• Phase Type: 3-phase delta or WYE configurations

Technical Specifications

• Input Voltage (V): 175 to 255VAC
• Input Type: 3-phase delta or WYE
• Phase Sequence: ABC
• Output Voltage (V): Max 250VAC
• Output Type: Electromechanical relay
• Load Rating (VA): Up to 10A resistive @ 240VAC
• Response Times: 50ms drop-out, 300ms pull-in
• Isolation Voltage (V): 1500V RMS input to output
• Mounting: Octal 8-pin plug-in
• Operating Temperature: -40° to 131°F
• Dimensions (inches): 3.20 x 2.39 x 1.78