# 22mm push button, Harmony XB4, metal base, red turn to release emergency stop push button, 1NO/1NC, explosive atmosphere | Mayer Electric

**Manufacturer:** SQUARE D  
**MPN:** `SQDXB4BS8445GEX`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | SQUARE D |
| Manufacturer name | SQUARE D |
| Manufacturer | SQUARE D |
| DimensionUnit | mm |
| Extra Product Name | 22mm push button, Harmony XB4, metal base, red turn to release emergency stop push button, 1NO/1NC, explosive atmosphere \| Mayer Electric |
| UPC | 3606489486037 |
| Weight | 0.141 |
| WeightUnit | kg |
| Weight_Attrib | Net Weight |
| depth | 119.5 |
| height | 30.0 |
| height_Attrib | Height |
| jsonUrlData | /Product/SQUARE-D-22mm-push-button-Harmony-XB4-metal-base-red-turn-to-release-emergency-stop-push-button-1NO-1NC-explosive-atmosphere-3606489486037 |
| jsonUrlData2 | 933e7952-47d2-4ff4-8c37-ade40063b7d6 |
| length | 119.5 |
| length_Attrib | Depth |
| moq | 1 |
| MPN | SQDXB4BS8445GEX |
| multiple | 1 |
| qtyInStock | 0 |
| SKU | SQDXB4BS8445GEX |
| tierMinQty1 | 1 |
| tierPrice1 | 225.01 |
| width | 46.2 |
| width_Attrib | Width |
| Reset | turn to release |
| 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 | Ex tb IIIC Db \|\| Ex db eb IIC Gb \|\| II 2 GD |
| Width | 46.2 mm |
| Depth | 119.5 mm |
| Tightening Torque | 0.8-1.2 N.m EN 60947-1 |
| Net Weight | 0.141 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 | SQDXB4BS8445GEX | 225.01 | 1 | None | 1 |

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