Schneider Electric · Harmony XB4 シリーズ

ZB4-BA3

現行品
UL CSA CE

Harmony XB4 Green Flush Push Button Head

型番: ZB4 - B - A - 3
Schneider Electric Harmony XB4 シリーズ Introduced circa 2003
Schneider Electric ZB4-BA3 — Harmony XB4 Green Flush Push Button Head

Green flush push button head for Schneider Harmony XB4 series. 22mm cutout, IP66 rated. Requires separate contact block (ZB4-BZ101 for 1NO).

主な用途

Commonly found as the start button on commercial kitchen equipment including Henny Penny and Frymaster deep fryers, conveyor systems in food processing plants, and packaging machinery. The IP66 front-face rating means it handles daily steam cleaning and hot oil splashes without degrading. The metal bezel resists corrosion in humid environments where plastic alternatives warp or crack. In HVAC applications, this button typically controls fan start or damper open functions on control panels.

模倣品に関する注意 Medium リスク

Counterfeit Schneider Harmony buttons are common in Asian markets. Genuine Schneider has QR code on packaging linking to verification site, crisp CE/UL markings, and consistent chrome bezel finish. Counterfeits often have rough casting, misaligned markings, and poor spring return feel. Buy from authorized Schneider distributors.

互換性

Compatible with all Schneider Harmony XB4 contact blocks (ZB4-BZ series, ZBE series). Also fits legacy Telemecanique XB2 mounting holes. Contact blocks are shared between XB4 and XB5 ranges.

仕様一覧

Actuator Shape
Round
Actuator Type
Flush
Certifications
UL, CSA, CE
Color
Green
Contact Configuration
1NO (with ZB4-BZ101)
Cutout Diameter
22mm
IP Rating
IP66
Material
Metal
Mechanical Life
10,000,000 cycles
Mounting Type
Panel
Max Operating Temp
70°C
Min Operating Temp
-25°C

このアイコン付きの仕様は、メーカーの元ソースページにリンクしています

併せて必要な部品

これはモジュール部品です。完全な組立には、以下も必要になる場合があります:

取付クイックリファレンス

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.

外形寸法

Front 22mm cutout panel hole diameter Side panel contact ~45mm depth

配線図

L T 11 12 NO (open) press ↓

トラブルシューティング

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.

主要仕様

Actuator Shape
Round
Actuator Type
Flush
Certifications
UL, CSA, CE
Color
Green
Contact Configuration
1NO (with ZB4-BZ101)

ユーザーの声

+

“Both are solid. Schneider has more accessories and wider availability. Eaton M22 has slightly better IP69K sealing for food industry. Either way, 22mm standard means you can always cross-reference later.”

Reddit r/PLC by panel_builder_pro 18 高評価 スレッドを見る →
+

“Generally had pretty good luck with all three of those brands. ABB and IDEC pushbuttons work fine, never had issues. Schneider Harmony is the benchmark — modular design makes replacement easy.”

ElectricianTalk 12 高評価 スレッドを見る →

データソース

仕様および製品データは以下の参考資料に基づいています。

ZB4-BA3 via DigiKey

https://www.digikey.com/en/products/detail/schneider-electric/ZB4BA3/1638730

アクセス日 March 28, 2026

出典

Schneider ZB4-BA3 Product Page

https://www.se.com/us/en/product/ZB4BA3/

アクセス日 March 30, 2026

出典

ZB4-BA3 Datasheet PDF

https://docs.rs-online.com/ba5c/0900766b81667988.pdf

アクセス日 March 28, 2026

出典