XB4BA21
Ativo22mm Black Complete Push Button 1NO
Schneider XB4BA21 — complete black push button.
Aplicações comuns
Complete black button for auxiliary functions. Horn silence, counter reset, lamp test. Black has no IEC safety meaning — keeps colored buttons visually distinct.
Especificações
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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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Flush
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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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Black
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Contact Configuration
Normally Open — circuit is off until you press. Standard for start/go/enable functions.
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1NO
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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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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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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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Referência rápida de instalação
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.
Dimensões
Diagrama de fiação
Solução de problemas
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.
Onde comprar
Faixa de preço
$19.99 — $129.92
em 4 distribuidores
Especificações rápidas
- Actuator Type
- Flush
- Certifications
- UL, CSA, CE
- Color
- Black
- Contact Configuration
- 1NO
- Cutout Diameter
- 22mm
O que os usuários dizem
“Complete black button for auxiliary functions. Horn silence, counter reset, lamp test. Black has no IEC safety meaning — keeps colored buttons visually distinct.”
Saiba mais
Graus de proteção IP explicados
O que IP65, IP66, IP67, IP69K significam para sua aplicação
Guia 22mm vs. 30mm
Qual tamanho de recorte de painel você precisa?
Blocos de contato: NO vs. NC
Como escolher e conectar blocos de contato
Ferramenta localizador de botões
Encontre o botão certo por tipo, tamanho e cor
