The Schneider Electric LUCB18BL is an advanced control unit in the TeSys Ultra range, designed for motor control and protection applications. It delivers overload, short-circuit, and phase loss protection with a current adjustment range of 4.5 to 18 A and a 24 V DC control circuit voltage.

Technical specifications:

Commercial reference: LUCB18BL
Manufacturer: Schneider Electric
EAN: 3389110364101
Series / range: TeSys Ultra
Rated operating voltage: 690 V AC
Control circuit voltage: 24 V DC (operating range: 20…27 V DC)
Motor current adjustment range: 4.5…18 A
Motor power: 7.5 kW at 400…440 V AC, 9 kW at 500 V AC, 15 kW at 690 V AC
Overload tripping class: Class 10
Trip threshold: 14.2 x Ir +/- 20%
Reset: Manual
Mounting: Plug-in (front)
Dimensions (W x H x D): 45 x 66 x 60 mm
IP protection: IP20 (front panel and wiring), IP40 (front panel, external connection zone)
Operating temperature: -25…70C
Operating altitude: 2000 m
Certifications: CE, UL, CSA, CCC, EAC, ATEX, Marine
Standards: IEC/EN 60947-6-2, UL 60947-4-1, CSA C22.2 No 60947-4-1

Features and benefits:

Integrated overload and short-circuit protection with Class 10 tripping characteristic
Phase loss and phase imbalance protection with automatic detection
Wide current adjustment range of 4.5 to 18 A suits multiple motor sizes up to 15 kW
Compatible with LUB32, LUB38, LUB320, and LUB380 power bases for flexible system configuration
400 V SELV safe separation between control, auxiliary, and main circuits per IEC 60947-1
Halogen-free plastics and PVC-free construction

Applications: