| Rated current (Iu) | Filter products by 12 A |
|---|---|
| Rated voltage (Ue) | Filter products by 24 V |
| Number of poles | Filter products by 3P |
| Coil voltage (Uc) | Filter products by 24 V AC |
| Product Series | Filter products by TeSys U |
Schneider ElectricElectronic Motor Protection
LUCB12B – Advanced control unit, TeSys U, 3-12A, 3P motors, protection & diagnostic, class 10, coil 24V AC | Schneider Electric
Order code
List R1 778.00 Your price R1 209.04
Per unit · volume pricing available on request
excl. VAT R1 390.40 incl.
Listed in stock — availability is re-confirmed on every order
In stock — 1–2 working days if stocked locally, 3–5 working days if sourced
Advanced control unit, TeSys U, 3-12A, 3P motors, protection & diagnostic, class 10, coil 24V AC — Schneider Electric order code LUCB12B. Rated current 12 A; 3P; rated voltage 24 V; 24 V AC coil.
In stock — 1–2 working days if stocked locally, 3–5 working days if sourced
View on the Schneider Electric site (opens in a new tab)
Select a variant in this series
Poles3P2 options
- 1P
- 3P
Coil voltage24 V AC2 options
- 24 V AC
- 24 V DC
Every option is a reference in this catalogue. A faded option changes more than one value — its nearest reference is linked.
Ordering & delivery
- Contact us for bulk pricing, lead times and ordering codes.
- Minimum order: 1 unit.
- Manufacturer's standard warranty applies.
- Collection from our branch, delivery in the Johannesburg area, and export across Africa on request.
- Some items are held off-site rather than in our own warehouse — availability is confirmed on every order.
- Authorised Schneider Electric distributor
- Genuine product with manufacturer warranty
- Formal quotations with written lead times
Overview
LUCB12B — Advanced control unit, TeSys U, 3-12A, 3P motors, protection & diagnostic, class 10, coil 24V AC by Schneider Electric. Listed under Electronic Motor Protection on the Schneider Electric catalogue at RMS-SE.Africa.
About LUCB12B
TeSys U control and diagnostic unit to be inserted in advanced power bases LUB120, LUB320, LUB380 to form a TeSys U starter controller, for 3-phase motor applications up to 5.5kW@400V. It provides full protection to motors with a rated current Ir 3-12A (Ir adjustable), overload tripping class 10, short circuit at 13 x Irmax, overcurrent at 14.2 x Ir, phase loss, insulation fault (protection of equipment only). For diagnostics, it provides a thermal overload alarm to be managed with an additional function module (to be ordered separately) and a test push button for overload simulation. To be used with a 24V AC voltage for the control of the starter (through the control terminals A1/A2 located in the power base). Certified when used in conjunction with a LUB power base (IEC, UL, CSA, CCC, EAC, Marine), Green Premium compliant (RoHS/REACh).
LUCB12B key specifications
Key specifications: rated current 12 A; 3P; rated voltage 24 V; 24 V AC coil.
Ordering information for LUCB12B
- Order code:
LUCB12B - Manufacturer: Schneider Electric (formerly Telemecanique)
- Range: TeSys U
- GTIN / EAN: 3389110364156
- Supplied: each
- Weight: 0.122 kg
- ETIM class: EC000617
- Datasheet: manufacturer datasheet for LUCB12B
Ordering options in this range
Same product, different coil / control voltage:
LUCB12BL— 24 V DC
About the TeSys U range
TeSys U is a Schneider Electric range with 129 references listed on RMS-SE.Africa, from 1 A to 38 A. Coil voltages in the range: 24 V DC, 24 V AC. It spans Electronic Motor Protection, Motor Protection Circuit Breakers, Contactors.
LUCB12B — frequently asked questions
What is the rated current of LUCB12B?
LUCB12B is rated 12 A.
What coil or control voltage does LUCB12B use?
LUCB12B is supplied with a 24 V AC coil. Other coil voltages in the range appear under “Ordering options” above where the catalogue lists them.
How many poles does LUCB12B have?
LUCB12B is a 3P device.
Where is the datasheet for LUCB12B?
The manufacturer datasheet is linked under “Ordering information” above; the product page also carries the manufacturer’s documents where Schneider Electric publishes them.
Is LUCB12B a genuine Schneider Electric product?
Yes. LUCB12B is supplied through the manufacturer’s authorised channel with the standard Schneider Electric warranty, and every order is confirmed against stock before payment.
Documents
Published by the manufacturer for this part. Each one opens in a new tab.
Technical specifications
Data supplied by the manufacturer. Confirm against the official datasheet before ordering.
Identification & ordering
| Product Name | LUCB12B – Advanced control unit, TeSys U, 3-12A, 3P motors, protection & diagnostic, class 10, coil 24V AC Schneider Electric |
|---|---|
| Brand | Filter products by Schneider Electric |
| Product Series | Filter products by TeSys U |
| GTIN / EAN | 3389110364156 |
| Lifecycle status | Filter products by Current |
| ETIM class | Filter products by EC000617 |
Electrical ratings
| Number of poles | Filter products by 3P |
|---|---|
| Rated current (Iu) | Filter products by 12 A |
| Rated voltage (Ue) | Filter products by 24 V |
| Operating Voltage | Filter products by 24V |
Power & coil
| Coil voltage (Uc) | Filter products by 24 V AC |
|---|
Documents
| Datasheet | View on the Schneider Electric site |
|---|
Other specifications
| Rated power kw | Filter products by 5.5 kW at 400 V |
|---|---|
| Related Categories | Filter products by Plug – in Relays, Filter products by Timers & Control Relays |
| SKU/Code/Partnumber | LUCB12B |
| Iternational GTIN | 3389110364156 |
| Mount Type | Filter products by Plug-in |
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Alternatives on our other RMS storefronts
RMS supplies each manufacturer range from its own storefront. These links open a different RMS site in a new tab.
Quick answers
What is LUCB12B?
LUCB12B is the order code for Advanced control unit, TeSys U, 3-12A, 3P motors, protection & diagnostic, class 10, coil 24V AC. It belongs to our Electronic Motor Protection range. RMS-SE.Africa supplies it as genuine Schneider Electric product, sourced through the manufacturer's distribution channel.
What is the rated current of LUCB12B?
Schneider Electric rates Advanced control unit, TeSys U, 3-12A, 3P motors, protection & diagnostic, class 10, coil 24V AC at 12 A. It is a 3P-pole device.
What voltage is LUCB12B rated for?
Schneider Electric rates it for 24 V.
What control voltage does LUCB12B take?
Schneider Electric specifies a control voltage of 24 V AC.
Is it available?
It is listed as in stock. Availability is re-confirmed on every order before any payment is taken, so what you order is what actually ships.
How do I get a formal quotation?
Use "Add to quote" and submit the quote basket. The RMS team prices every line, confirms stock, and emails you a formal quotation with written lead times — and you can accept it online to turn it into an order.
Do I pay when I order?
No. Checkout submits the order without payment; we confirm stock for every line first, then email you a secure payment link for the order.