XB4BW33B5
在产22mm Complete Green Illuminated 24V 1NO+1NC
Schneider XB4 complete illuminated green with dual contacts.
常见应用
The premium complete illuminated start button. Green LED + 1NO + 1NC pre-assembled. The 1NO energizes the motor, the 1NC provides start-pressed feedback to the PLC. One part number, zero assembly. The most specified complete illuminated button in Europe.
Research Notes
1. Overview
The Schneider Electric XB4BW33B5 is a complete 22 mm Harmony XB4 illuminated pushbutton: metal (chrome) bezel, green, flush momentary actuator, with an integral 24 V AC/DC LED and a 1 NO + 1 NC contact block. It's an all-in-one assembled unit (actuator + light block + contacts) for machine and control-panel start/run functions where a lit button is wanted. Sealing is to IP66/IP69K with NEMA 4X/13, the standard Harmony metal-series rating.
2. User Sentiment
The Harmony XB4 metal line is an industry standard — valued for robust chrome-bezel construction, the huge modular ecosystem, and broad distributor stock. As a complete catalog unit (vs. building from head + body + contacts) it's convenient to order and install. Green + illuminated is the classic "start/run, energized" indication. No notable reliability concerns; the usual care points are LED voltage match (this is 24 V) and confirming the 22 mm cutout.
3. Real-World Applications
Illuminated START / RUN / ON pushbutton on machinery and control panels; the integral 24 V LED shows the circuit is energized or the function active. The 1 NO + 1 NC block can drive a contactor/PLC input while signaling a second circuit.
4. Technical Specifications
- Type: Harmony XB4 complete illuminated pushbutton, 22 mm
- Bezel/material: metal (chrome)
- Actuator: flush, momentary (spring-return); green
- Illumination: integral LED, 24 V AC/DC
- Contacts: 1 NO + 1 NC
- Cutout: 22 mm
- Sealing: IP66, IP69, IP69K; NEMA 4X/13
- Approvals: UL, CSA, CE
5. Ordering & Compatibility
Complete unit — no separate head/body/contact ordering needed. Fits standard 22 mm panel cutouts. Part of the Harmony XB4 (metal) / XB5 (plastic) system; the ZB4 range provides matching heads/blocks if field-servicing. Confirm 24 V LED supply. Widely stocked (Mouser, Newark, RS, Rexel).
6. Known Issues
No notable issues — a mainstream Harmony product. Practical care: match LED voltage (24 V here, not 120/230 V), confirm the 22 mm cutout and panel thickness, and note it's a green flush actuator (booted/projecting/mushroom are different XB4 codes).
规格参数
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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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UL, CSA, 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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Green
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Contact Configuration
1NO + 1NC: One circuit closes and one opens when pressed. Common for start buttons that also signal 'running' state.
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1NO+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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Illumination
Whether the button has a built-in light. Illuminated buttons show status (lit = active).
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Illuminated
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IP Rating
IP69K: Dust-tight and withstands high-pressure, high-temperature steam jets. Built for food processing washdown environments.
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IP66, IP69, IP69K; NEMA 4X/13
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LED Voltage
The voltage required for the built-in LED. Must match your control circuit voltage (typically 24V DC or 230V AC).
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24V AC/DC
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Material
The bezel/body material. Metal bezels are more durable in harsh environments. Plastic is lighter and cheaper.
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Metal
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安装快速参考
Panel cutout: 22mm. Insert from the front of the panel, secure with mounting nut from behind (tighten to 2-3 Nm).
Contact block: Snap or screw the contact block onto the rear of the button body. Ensure the contact block orientation matches the wiring diagram — NO terminals are usually marked.
Wiring: Use 0.5-2.5mm² stranded wire with ferrules. Tighten screw terminals to 0.8 Nm. Test the button function before energizing the circuit.
尺寸
接线图
故障排除
Button doesn't respond when pressed
Check the contact block first — it's the most common failure point. Test continuity across the NO or NC terminals with a multimeter. If no click is felt, the return spring in the head may be broken.
Works intermittently
Contact block contacts are pitted or burned. Replace the contact block — don't try to file the contacts. Check if the rated cycle count has been exceeded.
Button feels mushy or doesn't click
The spring return mechanism in the button head is worn. Replace the head. The contact block can usually be reused if it tests OK.
购买渠道
价格范围
$80.87 — $161.86
来自 3 家经销商
快速规格
- Certifications
- UL, CSA, CE
- Color
- Green
- Contact Configuration
- 1NO+1NC
- Cutout Diameter
- 22mm
- Illumination
- Illuminated
用户评价
“The premium complete illuminated start button. Green LED + 1NO + 1NC pre-assembled. The 1NO energizes the motor, the 1NC provides start-pressed feedback to the PLC. One part number, zero assembly. The”
