XB4-BS8445
Hoạt độngATEX Emergency Stop Twist Release
ATEX-certified 40mm mushroom emergency stop for hazardous areas.
Ứng Dụng Phổ Biến
Critical safety device on oil drilling platforms, gas compressor stations, and chemical reactors. ATEX Zone 1 certification ensures the e-stop itself cannot become an ignition source. Twist-to-release prevents accidental restart in hazardous environments.
Thông số kỹ thuật
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Actuator Function
Momentary = springs back when released. Maintained/latching = stays pressed until pressed again.
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Twist-to-release
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Actuator Type
The button head style. Flush sits level with the bezel (prevents accidental presses). Extended protrudes for easy access.
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Mushroom 40mm
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ATEX Zone
The hazardous area classification. Zone 1 = gas likely present. Zone 2 = gas unlikely. Zone 21/22 = combustible dust.
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Zone 1, Zone 21
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Certifications
Third-party safety certifications. UL = required for US NEC installations. CE = EU compliance. CSA = Canadian standards.
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ATEX, IECEx, CE
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Color
Button/actuator color. Green = start/go, Red = stop/emergency, Yellow = caution, Blue = reset (per IEC 60204-1).
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Red
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Contact Configuration
Normally Closed — circuit is on until you press. Standard for stop/emergency functions. Wire in series with safety circuits.
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1NC
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Cutout Diameter
The hole size you drill in your panel to mount this button. 22mm is the most common industrial standard worldwide.
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22mm
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Explosion Group
The gas group the device is certified for. IIC covers hydrogen (most restrictive). IIB covers ethylene. IIA covers propane.
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IIC
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IP Rating
IP66: Dust-tight and withstands powerful water jets from any direction. Standard for outdoor and washdown applications.
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IP66
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Temperature Class
Maximum surface temperature. T6 (85°C) is most restrictive. T1 (450°C) is least. Must not exceed auto-ignition temp of the gas.
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T6
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Thông số kỹ thuật có biểu tượng này được liên kết đến trang nguồn gốc của nhà sản xuất
Bạn Cũng Cần
Đây là một thành phần mô-đun. Để lắp ráp hoàn chỉnh, bạn có thể cần thêm:
Các Lựa Chọn Tương Thích
Các sản phẩm này là các tham chiếu chéo tương đương về chức năng từ các nhà sản xuất khác.
Hướng Dẫn Cài Đặt Nhanh
Panel cutout: 22mm. Mount with the yellow backing plate visible (required by EN/ISO 13850).
Wiring: Wire NC contacts in series with the safety relay input channels. Use dual-channel wiring for SIL 3 / PLe applications. Never wire directly to a motor contactor.
Testing: Press the e-stop and verify the machine stops within the required time. Test the reset mechanism. Repeat monthly per EN/ISO 13850.
Kích thước
Sơ đồ đấu dây
Khắc phục sự cố
E-stop won't reset (twist/pull doesn't release)
Check for debris in the mechanism. For twist-release: turn clockwise 45-90 degrees. For push-pull: pull straight out firmly. If the mechanism is stuck, the internal latch may be damaged — replace the entire head assembly.
Machine doesn't stop when e-stop is pressed
Critical safety issue. Immediately lock out the machine. Check wiring — NC contacts must be in series with the safety relay. Verify the safety relay is functioning. A broken wire in an NC circuit should cause a stop, so check for a wiring bypass.
Safety relay faults after e-stop reset
The safety relay detects a cross-fault between the two monitoring channels. Check that both NC contacts on the e-stop are switching simultaneously. One contact may be welded closed — replace the contact block.
Nơi Mua Hàng
Dải giá
$22.0 — $97.21
từ 4 nhà phân phối
Thông số kỹ thuật nhanh
- Actuator Function
- Twist-to-release
- Actuator Type
- Mushroom 40mm
- ATEX Zone
- Zone 1, Zone 21
- Certifications
- ATEX, IECEx, CE
- Color
- Red
Những Đánh Giá Từ Khách Hàng
“XB4-BS8445 meets EN/ISO 13850 requirements. Always wire NC contacts through a safety relay, never direct to contactor. Test monthly.”
Tìm Hiểu Thêm
Nguồn Dữ Liệu
Thông số kỹ thuật và dữ liệu sản phẩm được trích dẫn từ các tài liệu tham khảo sau.
XB4BS8445 Product Page
https://www.se.com/ww/en/product/XB4BS8445/
Truy cập ngày April 04, 2026
