Schneider XB7NG21 Harmony XB7 Key Switch 22mm 2-Position Stay Put Key 455

The Schneider Electric XB7NG21 is a 22mm key selector switch from the Harmony XB7 range, offering maintained 2-position operation (90°) with a Ronis 455 key. With a single NO contact and left-side key removal, it provides secure, operator-controlled circuit selection in industrial control panels and machine enclosures.

Technical specifications:

• Commercial reference: XB7NG21
• Manufacturer: Schneider Electric
• EAN:
• Series / range: Harmony XB7
• Product type: Key selector switch
• Mounting diameter: 22 mm (panel cutout 22.3 +0.4/0 mm per IEC 60947-1)
• Head shape: Round
• Operation: Maintained (stay-put), 2 positions, 90°
• Key type: Ronis 455
• Key removal position: Left
• Contact configuration: 1 NO (terminals 13-14)
• Positive opening: None
• Contact operation: Slow break
• Rated insulation voltage [Ui]: 250 V (pollution degree 3) per IEC 60947-1
• Rated impulse withstand voltage [Uimp]: 4 kV per IEC 60947-1
• Rated operational current [Ie]: 0.3 A at 240 V AC-14; 0.6 A at 120 V AC-14; 0.1 A at 250 V DC-13; 0.22 A at 125 V DC-13
• Short circuit protection: 4 A fuse type gG per IEC 60947-5-1
• IP rating: IP65 (front) / IP20 (rear) per IEC 60529
• NEMA rating: NEMA 3, NEMA 12 per UL 50E
• Protection class: Class II per IEC 61140
• Mechanical endurance: 300,000 cycles
• Electrical endurance: 1,000,000 cycles per IEC 60947-5-1 Annex C
• Electrical reliability: less than 10exp(-6) at 17 V / 5 mA per IEC 60947-5-4
• Dimensions (W x H x D): 29 x 29 x 83 mm
• Weight: 0.05 kg
• Operating temperature: -25...70°C
• Storage temperature: -40...70°C
• Fixing: Fixing nut, 2...2.4 N.m; metal panel 1...6 mm, plastic panel 2...6 mm
• Connection: Screw terminals, 1 x 0.34...2 x 2.5 mm² (without cable end); up to 2 x 1.5 mm² (with cable end) per IEC 60947-1
• Tightening torque: 0.8...1.2 N.m per IEC 60947-1
• Vibration resistance: 5 gn at 2...500 Hz per IEC 60068-2-6
• Shock resistance: 50 gn (11 ms) / 30 gn (18 ms) per IEC 60068-2-27
• Sold in indivisible quantities of: 10

Features and benefits:

• Maintained 2-position action holds the selected position without operator retention, ensuring reliable mode locking
• Ronis 455 key with left-side removal restricts unauthorized circuit switching and improves safety
• IP65 front protection against dust and water jets suits washdown and outdoor-rated enclosures
• 1,000,000-cycle electrical endurance and 300,000-cycle mechanical endurance deliver long service life in high-cycle applications
• Class II electrical protection reduces electric shock risk in panel installations
• Standard 22 mm panel cutout allows straightforward retrofit or new installation

Applications:

• Machine control panels requiring key-secured mode or speed selection
• Industrial automation enclosures where preventing unauthorized switching is critical
• Motor control centers for keyed manual/automatic or local/remote changeover
• Operator desks and control stations in manufacturing and process plants
• Outdoor or harsh-environment panels requiring IP65 front-face sealing

Compliant with IEC 60947-1, IEC 60947-5-1, UL 508, CSA C22.2 No 14, JIS C8201-5-1, and JIS C8201-1. Part of the Schneider Electric Harmony XB7 range.

Also known as: Schneider XB7NG21, Schneider Electric XB7NG21, Harmony XB7 key switch, 22mm maintained key selector switch.