Schneider Electric XB7NS8444 Harmony Emergency Stop Pushbutton, 40mm Red Mushroom, IP65, 2NC
Schneider Electric XB7NS8444 Harmony Emergency Stop Pushbutton, 40mm Red Mushroom, IP65, 2NC
- MPN: XB7NS8444
- PPN: SCH-XB7NS8444
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CAD$102.51/ EA
Description
This Harmony XB7, emergency stop / shutdown 40mm mushroom head monolithic red push button operates with a latched turn to release mechanism and uses screw-clamp terminals. This emergency stop / shutdown button, also called EMS (Emergency Machine Stop) and EMO (Emergency Off) is easily installed into a standard 22mm diameter cut-outs and connected with simple screw-clamp connections. It is clearly distinguishable visually at a distance thanks to a clear color and a prominent 40mm mushroom shape. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP65, making it ideal for operation in harsh environments. It has a double insulated plastic bezel. Its wide range of operating temperatures from -40°C to 70°C allows versatility in usage of product.
Features
- Engineered as a complete, single-piece component, this Harmony XB7 emergency stop eliminates the frustrating hassle of assembling separate contact blocks and push-button heads. It mounts directly into any standard 22mm panel cutout with a simple rear locking nut, dramatically reducing installation time for panel builders and ensuring a tight, vibration-resistant fit on heavy machinery.
- Featuring a positive mechanical latching mechanism, the prominent 40mm red mushroom head instantly locks upon actuation to halt dangerous equipment operations safely. The intuitive "turn-to-release" reset function prevents accidental machine restarts, ensuring your automated manufacturing lines fully comply with strict ISO 13850 and IEC 60947-5-5 machine safety protocols.
- Outfitted with two Normally Closed (2 NC) slow-break contacts, this E-stop button is designed to seamlessly integrate into dual-channel safety monitoring systems. This vital electrical redundancy guarantees that even if one circuit path fails, the backup contact will reliably break the control loop, protecting factory operators from hazards and satisfying high-risk machine safety categories.
Specifications
- Rated Operational Current
- 0.1 A 250 V DC-13, 0.22 A 125 V DC-13, 0.75 A 240 V AC-15, 1.5 A 120 V AC-15 IEC 60947-5-1
- Rated Impulse Withstand Voltage
- 4 kV IEC 60947-1
- Mechanical Durability
- 100000 cycles
- Electrical Reliability
- λ < 5 x 10⁻⁷ 17 V 5 mA IEC 60947-5-4
- Contacts Type and Composition
- 2 NC
- Mounting Diameter
- 22 mm IEC 60947-1
- Fixing Mode
- Fixing nut beneath head 2-2.4 N.m
- Dimensions
- 72 mm depth, 40 mm width, 40 mm height
- IP Degree of Protection
- IP65 front face, IP20 rear face IEC 60529
- Electrical Shock Protection Class
- Class II IEC 60536
- Shock Resistance
- 15 gn 11 ms half sine wave acceleration IEC 60068-2-27
- Standards
- IEC 60204-1, UL 508, ISO 13850, IEC 60947-5-1, IEC 60947-1, IEC 60947-5-5, IEC 60364-5-53, CSA C22.2 No 14
- Ambient Air Temperature For Operation
- -25 to 70 °C
- Mercury Free
- Yes
- RoHS Compliance
- Pro-active compliance (Product out of EU RoHS legal scope), China RoHS X, RoHS Exemption: Yes
- Circularity Profile
- ENVEOLI1805012EN
- Device Presentation
- Monolithic product
- Shape of Signaling Unit Head
- Round
- Terminals Connection
- Screw clamp terminals ≤ 2 x 1.5 mm² with cable end, 1 x 0.34 to 2.5 mm² without cable end IEC 60947-1
- Contact Usage
- Standard
- Range Of Product
- Harmony XB7
- Warranty
- 18 months
Rated Insulation Voltage250 V IEC 60947-1
Short-Circuit Protection4 A cartridge fuse gG IEC 60947-5-1
Electrical Durability1,000,000 cycles DC-13 0.3 A 24 V, AC-15 0.03 A 230 V, AC-15 0.09 A 240 V IEC 60947-5-1 appendix C
Contact OperationSnap action
ResetTurn to release
Fixing Center>= 30 x 40 mm support panel (metal 1-6 mm, plastic 2-6 mm)
Net Weight0.035 kg
Operator ProfileRed mushroom Ø 40 mm, unmarked
NEMA Degree of ProtectionNEMA 12, NEMA 3 UL 50
Vibration Resistance5 gn 2-500 Hz IEC 60068-2-6
Protective TreatmentTH
Product CertificationsGOST, CCC
Ambient Air Temperature For Storage-40 to 70 °C
Toxic Heavy Metal FreeYes
Environmental DisclosureENVPEP1805012EN
Reach ComplianceFree of Substances of Very High Concern above threshold
Device MountingFixing hole 22.5 mm (22.3 +0.4 / 0) IEC 60947-1
Shape of Screw HeadCross JIS No 1, Cross Philips No 1, Cross Pozidriv No 1, Slotted flat Ø 4 mm, Slotted flat Ø 5.5 mm
Terminals Description ISO No 1(11-12) NC, (21-22) NC
Type Of OperatorLatching
Device Short NameXB7
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