Miniature circuit breaker QOLTEC C40, 40 A

Name: Miniature circuit breaker QOLTEC C40, 52592
Brand: QOLTEC
SKU: 10543643
Price: 16.49 EUR
Availability: InStock

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Miniature circuit breaker QOLTEC C40, 40 A, C curve, IP20, 17 mm width

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Short description

QOLTEC C40 is a miniature circuit breaker with a rated current of 40 A and C breaking characteristic, suitable for protection of lighting and power circuits against overloads and short circuits. It features a breaking capacity class C, IP20 protection, and compact dimensions (17 mm width, 75 mm depth, 86 mm height) for DIN-rail installation in distribution boards.

Available for order: 260 pcs.

Warranty: 2 Years

SKU: 10543643

Manufacturer: QOLTEC

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Deliver the order:

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06.07.2026 {{selectedOffer.officeDeliveryString}}

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Customer service center

2b. Kengaraga str., Riga, Latvia, LV-1063

06.07.2026 {{selectedOffer.officeDeliveryString}}

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From 4.99 € (Weight: 0.09 kg)

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Product information

Description

QOLTEC C40 is a miniature circuit breaker with a rated current of 40 A and a C breaking characteristic designed for protection of lighting and power circuits against overloads and short circuits. The device combines an electromagnetic and thermal trip, has IP20 protection and a compact form factor for DIN-rail (TH35) installation in distribution boards. Its 17 mm width and DIN-compatible mounting make it suitable for dense electrical panels and installations including photovoltaic systems.

Advantages

The QOLTEC C40 provides combined thermal and electromagnetic tripping to react to both prolonged overloads and instantaneous short-circuit currents. Its C curve characteristic offers reliable tripping behaviour for general-purpose circuits and mixed loads such as motors and lighting. With IP20 protection and a narrow 17 mm profile, the breaker saves space in distribution boards while ensuring dependable overcurrent protection. DIN-rail mounting simplifies installation and replacement in standard electrical panels.

Suitable for

Protection of household and commercial lighting circuits
Protection of general power circuits and socket-outlets
Distribution boards with limited space where compact breakers are required
Installations that include small motors or inductive loads needing C-curve protection
Photovoltaic system sub-distribution and related DC/AC circuits (when used according to local wiring rules)

Key specifications

Rated current: 40 A
Tripping characteristic: C curve (suitable for moderate inrush currents)
Protection degree: IP20
Trip type: combined thermal and electromagnetic
Mounting: DIN-rail TH35
Dimensions: 17 mm width, 75 mm depth, 86 mm height

How to use

Mount the QOLTEC C40 on a standard TH35 DIN rail inside a properly rated distribution board. Ensure power is isolated before wiring. Connect incoming supply to the line terminal and outgoing load to the load terminal following the panel schematic and national electrical codes. Verify correct polarity and tighten terminal screws to the manufacturer’s recommended torque. After wiring, restore power and test the breaker by switching it on and off; perform a functional test under load conditions as required by installation standards.

Usage recommendations

Use the QOLTEC C40 within its rated current and environmental limits. Select upstream and downstream protective devices to coordinate with the C-curve tripping behaviour. For photovoltaic installations or other specialized systems, follow local regulations and consider additional DC-rated protective devices where required. Periodically inspect terminals and mounting for proper tightness and absence of damage.

Specifications

Weight:: 0.088 kg

All features

Circuit breaker type:: Miniature circuit breaker
Energy limiting class:: 2
Breaking capacity class:: C

Power

Rated current:: 40 A

Weight & dimensions

Weight:: 0.088 kg
Height:: 86 mm
Width:: 17 mm
Depth:: 75 mm

Design

Material:: Cooper
International Protection (IP) code: Device protection rating against dust and water according to the international IP standard.: IP20

Features

Number of poles:: 1

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Customer questions

FAQ

How much does the Miniature circuit breaker QOLTEC C40, 40 A cost, and is it available for purchase?

The price is 16.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 260 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 06.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All QOLTEC products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized QOLTEC service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: weight, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

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