Ls Electric 1303000800 Overload Relay 21.5A Mt Series

Product Description

The LS ELECTRIC 1303000800 is an IEC-style thermal overload relay from the Metasol MT Series, designed to protect three-phase motors from overcurrent, overload, and phase-loss conditions. Rated at 21.5 amps with a Class 20 trip characteristic, this relay provides reliable motor protection in demanding industrial and commercial control panel applications. It connects via lug terminals and carries an IP20 rating, making it suitable for enclosed control cabinet installations. Licensed electricians and motor control technicians typically specify this relay when building or servicing motor starters.

The 1303000800 is part of LS ELECTRIC's Metasol series, which covers IEC contactors and overload relays across 25 models in 9 frame sizes. This MT-63 frame relay is paired with MC-50a and MC-65a contactors in 65AF motor control assemblies. It is front- or side-mountable and supports DIN rail installation without additional tools. The screw-type lug terminals simplify field wiring, and two built-in normally open contacts are included for control circuit integration.

Key Features

• 21.5-amp current rating with Class 20 trip characteristic for motor protection
• IEC-rated MT-63 frame relay for use in 65AF motor control assemblies
• Lug terminals for straightforward field wiring connections
• IP20 rated for use in enclosed control panels and cabinets
• DIN rail mountable without extra tools; front- and side-mount accessories available
• Two built-in normally open (NO) contacts included for control circuit use

Compatibility

Designed for use with MC-50a and MC-65a IEC contactors in 65AF Metasol series motor starter assemblies. Compatible within the broader Metasol series lineup alongside MT-12, MT-32, MT-95, and MT-150 overload relays for other frame sizes.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC requirements and applicable local codes. De-energize and lock out the control panel before mounting or wiring the relay. Verify that the adjusted current setting matches the full-load amperage of the protected motor before commissioning. Confirm that the contactor frame rating is compatible with the MT-63 relay before assembly.