# LEGRAND S 303 B40 TX | Circuit breaker; 400VAC; Inom: 40A; Poles: 3; Charact: B; 6kA; IP20

**Manufacturer:** LEGRAND  
**MPN:** `S 303 B40 TX`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | LEGRAND |
| Manufacturer name | LEGRAND |
| Manufacturer | LEGRAND |
| CategoryL1 | Fuses and Circuit Breakers |
| CategoryL2 | Circuit Breakers |
| CategoryL3 | Circuit Breakers |
| Extra Product Name | LEGRAND S 303 B40 TX \| Circuit breaker; 400VAC; Inom: 40A; Poles: 3; Charact: B; 6kA; IP20 |
| atoms | 1 |
| jsonUrlData | 94a6abdce2af1bcc85e72d2753e769fa. |
| jsonUrlData2 | b9e65459c4dddf87590e |
| keywords | LEGRAND, S 303 B40 TX, 403406 |
| moq | 1 |
| MPN | S 303 B40 TX |
| multiple | 1 |
| qtyInStock | 1 |
| SKU | 403406 |
| snippet | LEGRAND S 303 B40 TX \| Circuit breaker; 400VAC; Inom: 40A; Poles: 3; Charact: B; 6kA; IP2 |
| tierMinQty1 | 1 |
| tierMinQty2 | 5 |
| tierMinQty3 | 10 |
| tierPrice1 | 32.6 |
| tierPrice2 | 30.56 |
| tierPrice3 | 28.52 |
| Type of protection | circuit breaker |
| Current rating | 40A |
| Number of poles | 3 |
| Mounting | for DIN rail mounting |
| Characteristics | B |
| Short circuit breaking capacity | 6kA |
| IP rating | IP20 |
| Cross section of connecting wires | 1...35mm |
| Operating temperature | -25...70?C |
| Mechanical durability | 20000 cycles |
| Electrical life | 10000 cycles |
| Conform to the norm | IEC EN 60898-1 |
| Manufacturer series | S300 TX |
| Trade name | MCB |
| Rated voltage | 400V AC |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| TME | 403406 | 32.6 | 1 | 1 | 1 |

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Structured data: `/python/html6/product/500/21000000/21041000/part_--S303B40TX---LEGRAND--a9bb678328.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp