Square D LUCA TeSys Ultra Motor Control Unit, Class 10, 24VDC

Square D LUCA TeSys Ultra Motor Control Unit, Class 10, 24VDC

The Square D LUCA TeSys Ultra Standard Control Unit plugs into TeSys power bases LUB12, LUB32, and LUB38 to form a complete starter controller for 3-phase motor applications up to 5.5 kW @ 400V (9 kW @ 690V). This control unit is available in Motor FLA ratings of 3A and 4.5A, with an adjustable rated current Ir of 3-12A, Class 10 thermal overload response, and a 24VDC control circuit. It carries UL, CSA, and IEC 60947-6-2 ratings for dependable motor protection in commercial and industrial applications.

Key Features

• Motor FLA Options: Available in 3A and 4.5A ratings to match specific motor full-load amperage requirements.
• Adjustable Overload Range: Ir adjustable 3-12A, with a tripping threshold of 14.2 x Ir +/- 20%.
• Class 10 Overload Protection: Rated -25 to 70 °C per UL 508 and IEC 60947-6-2, 40-60 Hz.
• 24VDC Control Circuit: Uc 24VDC, 14.5VDC drop-out, 20-27VDC operating range for stable control performance.
• Plug-In Mounting: Front-face plug-in fixing into power bases LUB12, LUB32, and LUB38 for fast installation.
• Motor Coverage: Protects 3-phase self-cooled motors up to 5.5 kW @ 400V and 9 kW @ 690V.
• Protection Functions: Earth fault, phase failure/imbalance, overload, and short-circuit protection, plus manual reset.
• IP20 Rated: IP20 on front panel and wired terminals per IEC 60947-1.

Certifications & Compliance

• UL 60947-4-1, with phase barrier
• CSA C22.2 No 60947-4-1
• IEC/EN 60947-6-2
• Mercury Free
• RoHS Compliant with Exemptions

Technical Specifications

• Listing: UL
• Warranty Period: 18 months
• Average Life Duration: 15 year(s)
• Mercury Free: Yes
• ROHS Eur Status: Compliant with Exemptions
• Sustainable Packaging: Yes
• With Recycled Cardboard: Yes
• Without Single Use Plastic: Yes
• WEEE Scope: In
• Environmental Disclosure: ENVPEP2406038EN

Typical Applications

• 3-Phase Motor Starter Control with LUB Power Bases
• Overload and Short-Circuit Protection for Industrial Motors
• Motor Control Center and Panelboard Wiring
• Earth Fault and Phase Failure Protection Circuits
• Renovation of Existing TeSys U Motor Starters

Why Square D?

Square D LUCA TeSys Ultra control units pair Class 10 overload protection with UL, CSA, and IEC 60947-6-2 compliance for dependable motor protection across the 3A and 4.5A Motor FLA range. Built mercury-free with RoHS-compliant materials and backed by an 18-month warranty, this control unit delivers the reliable, code-ready performance professionals expect from Square D on every TeSys Ultra installation.