# Emergency switching off push button, Harmony XB4 - ATEX D, metal, 22mm, red mushroom 40mm, tripping/latching, push-pull, 1NO + 1NC | Mayer Electric

**Manufacturer:** SQUARE D  
**MPN:** `SQDXB4BT845GEX`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | SQUARE D |
| Manufacturer name | SQUARE D |
| Manufacturer | SQUARE D |
| DimensionUnit | mm |
| Extra Product Name | Emergency switching off push button, Harmony XB4 - ATEX D, metal, 22mm, red mushroom 40mm, tripping/latching, push-pull, 1NO + 1NC \| Mayer Electric |
| UPC | 3606489486051 |
| Weight | 0.142 |
| WeightUnit | kg |
| Weight_Attrib | Net Weight |
| depth | 96.5 |
| height | 30.0 |
| height_Attrib | Height |
| jsonUrlData | /Product/SQUARE-D-Emergency-switching-off-push-button-Harmony-XB4-ATEX-D-metal-22mm-red-mushroom-40mm-tripping-latching-push-pull-1NO-1NC-3606489486051 |
| jsonUrlData2 | ba9c11eb-5575-413d-b4d0-aeea005804cc |
| length | 96.5 |
| length_Attrib | Depth |
| moq | 1 |
| MPN | SQDXB4BT845GEX |
| multiple | 1 |
| qtyInStock | 0 |
| SKU | SQDXB4BT845GEX |
| tierMinQty1 | 1 |
| tierPrice1 | 201.31 |
| width | 46.2 |
| width_Attrib | Width |
| Reset | push-pull |
| Gas Zone | zone 1 - 2 |
| Contacts Type And Composition | 1 NO + 1 NC |
| Sale Per Indivisible Quantity | 1 |
| Range Of Product | Harmony XB4 |
| Bezel Material | chromium plated metal |
| Dust Zone | zone 21 - 22 |
| Operator Profile | red mushroom ? 40 mm |
| Mounting Diameter | 22 mm |
| Type Of Operator | trigger action and mechanical latching |
| Product Or Component Type | complete emergency stop push-button |
| Device Short Name | XB4 |
| Fixing Collar Material | zamak |
| Connections - Terminals | screw clamp terminals, 2 x 1.5 mm? with cable end EN/IEC 60947-1 \|\| screw clamp terminals, 1 x 2.5 mm? without cable end EN/IEC 60947-1 |
| Contacts Usage | standard |
| Height | 30 mm |
| [Ui] Rated Insulation Voltage | 415 V |
| Embedding Depth | 58 mm |
| Contact Operation | slow-break |
| Fixing Center | >= 30 x 40 mm support panel) 1-6 mm |
| Mechanical Durability | 5000000 cycles |
| Positive Opening | with EN/IEC 60947-5-1 appendix K |
| [Ith] Conventional Free Air Thermal Current | 10 A EN/IEC 60947-5-1 |
| Shape Of Signaling Unit Head | round |
| Marking | II 2 GD \|\| Ex tb IIIC Db \|\| Ex db eb IIC Gb |
| Width | 46.2 mm |
| Depth | 96.5 mm |
| Tightening Torque | 0.8-1.2 N.m EN 60947-1 |
| Net Weight | 0.142 kg |
| Device Mounting | fixing hole 22.5 mm +/- 0.2 mm EN/IEC 60947-1 |
| China Rohs Regulation | X |
| Circularity Profile | ENVEOLI1808008EN |
| Rohs Exemption Information | Yes |
| Mercury Free | Yes |
| Environmental Disclosure | ENVPEP1808008EN |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| mayerelectric.com | SQDXB4BT845GEX | 201.31 | 1 | None | 1 |

---
Structured data: `/python/html6/product/500/248000000/248372000/part_--SQDXB4BT845GEX---SQUARED--e203608d9e.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp