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Schneider Electric LUCA18B TeSys U Standard Control Unit 4.5-18 A 24 V AC Motor Starter Module

% $-89.00
Schneider Electric LUCA18B TeSys U control unit - 4.5-18A 24V AC motor starter module
Schneider Electric LUCA18B TeSys U control unit - 4.5-18A 24V AC motor starter module

Schneider Electric LUCA18B TeSys U Standard Control Unit 4.5-18 A 24 V AC Motor Starter Module

Brand: Schneider Electric
Reference No: LUCA18B
Series: TeSys Ultra
Tariff Code (HS): 853650
Rated Current: 18 A
Rated Voltage: 24 V AC
Stock: 0
Delivery time: 30 business day(s)
Shipping Origin: Türkiye EXW
$89.00

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  • Description

The Schneider Electric LUCA18B is a TeSys U standard control unit providing adjustable thermal-magnetic motor protection from 4.5 to 18 A. Plugged into a LUB32 or LUB38 power base, it forms a complete starter-controller with Class 10 overload tripping, phase-failure sensing, and earth-fault detection for 3-phase motors up to 7.5 kW at 400 V, controlled from a 24 V AC supply.

Technical Specifications

Reference LUCA18B
GTIN 3389110363920
Brand Schneider Electric
Range TeSys U
Product or Component Type Standard control unit
Device Application Motor control, motor protection
Rated Motor Current Adjustment Range 4.5-18 A
Thermal Overload Class Class 10
Tripping Threshold 14.2 x Ir +/- 20%
Phase Failure Sensitivity Yes
Max Motor Power 7.5 kW at 400 V, 9 kW at 500 V, 15 kW at 690 V
Control Circuit Voltage (Uc) 24 V AC
Rated Operational Voltage (Ue) 690 V AC
Utilisation Category AC-41, AC-43, AC-44
Rated Insulation Voltage (Ui) 690 V
Fixing Mode Plug-in (front face)
Dimensions (W x H x D) 45 x 66 x 60 mm
Net Weight 0.135 kg
IP Degree of Protection IP20 (terminals), IP40 (outside connection zone)
Compatible Power Bases LUB32, LUB38, LUB320, LUB380

Certifications & Standards

  • CE
  • UL
  • CSA
  • CCC
  • EAC
  • IEC 60947-6-2
  • UL 60947-4-1
  • CSA C22.2 No 60947-4-1

Selection Notes

The LUCA18B's 4.5-18 A range requires the larger LUB32 or LUB38 power base, unlike the lower-current LUCA05B/LUCA12B, which also fit the compact LUB12. Its Class 10 curve carries the same trip characteristic through the whole family, so swapping current steps does not change coordination with upstream protection. Choose the LUCA32B instead once the motor's full-load current exceeds 18 A.

Technical Details

Short Description
TeSys U standard control unit, 4.5-18 A adjustable, Class 10, 24 V AC coil
Rated Current (Ampere)
18 A
Rated Voltage (VAC)
24 V AC
Mounting Type
Plug-in (front face)
Protection Type
IP20 (terminals), IP40 (outside connection zone)
Delivery Date (Days)
30 days
Model Number
LUCA
Tariff Code
853650

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