#30 in Industrial Control (B2B)

Chtaixi 32A DIN Rail Thermal-Magnetic Circuit Breaker (2-Pole, 120V/240V)

Name: Chtaixi 32A DIN Rail Thermal-Magnetic Circuit Breaker (2-Pole, 120V/240V)
SKU: B09TVS6X1C
Price: 12.87 USD
Availability: InStock
Rating: 4.8 (607 reviews)

4.8(607 reviews)

$12.87reference price

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Best for

Adding overload and short-circuit protection to a contactor or relay that doesn't include it — the add-on this catalog's certification guide flags as not optional.

DIN rail
Thermal-magnetic
Curve C

What is it and what's it for?

It's a thermal-magnetic DIN-rail breaker — it automatically cuts the circuit if it detects an overload (thermal protection, slower) or a short circuit (magnetic protection, nearly instant), protecting the rest of the circuit and the equipment downstream.

Real-world use cases

At home

You install it on the same DIN rail in the panel, ahead of the contactor or relay that doesn't have its own protection — that way, if that load short-circuits, the breaker trips before the damage spreads to the rest of the panel.

In a business or workshop

An industrial control panel uses it as dedicated protection for each output circuit, so a fault in one piece of equipment doesn't take down the whole panel or damage shared wiring.

How to avoid buying the wrong one

It comes in several amperages (6A to 63A) at the same price — pick the amperage based on the actual current of the load you're protecting, don't assume the first one listed is correct.
It's curve C (trips between 5 and 10 times rated current) — built for loads with a moderate startup surge (small motors, transformers), not for sensitive electronics, which would need curve B.
It doesn't replace the GFCI breaker in this catalog if your installation needs ground-fault protection — this only covers overload and short-circuit, which are different protections.

The investment takeaway

At under $13, it's a cheap part against the cost of a contactor or piece of equipment damaged by an unprotected fault — this catalog's certification guide already flags it as "not optional" for contactors that don't include this protection built in.

Chtaixi 32A DIN Rail Thermal-Magnetic Circuit Breaker (2-Pole, 120V/240V)

$12.87reference price

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