Busch-Jaeger 2733USL-101 Key Switch Insert, 1-Pole, 10A, 250V AC, Black/Grey

The Busch-Jaeger 2733USL-101 is a professional key switch insert designed for flush-mounted installation. It provides reliable 2-position (ON/OFF) latching switching for access control, security systems, machine control, and lighting applications. The switch requires a profile half cylinder (Euro profile) with a length of 30/10 mm, which must be ordered separately. It features screw terminals for secure wiring and is compatible with various Busch-Jaeger central plate/cover ranges such as Reflex SI, Future Linear, and Alpha.

Advantages

Robust thermoplastic construction ensures durability and long service life. The key can be removed in both switch positions (0 and 1), preventing unauthorized key removal. The 1-pole changeover contact (1 NO / 1 NC) offers flexible control options.

Suitable for

• Access control systems
• Security systems
• Machine control panels
• Lighting control

Key specifications

• Product Type: Key Switch Insert
• Switching Function: 2-position (ON/OFF), Latching
• Number of Poles: 1-pole
• Contact Configuration: 1 Changeover contact (1 NO / 1 NC)
• Rated Voltage: 250 V AC
• Rated Current: 10 A
• Key Removal Positions: Both positions (0 and 1)
• Required Key Cylinder Type: Profile half cylinder (Euro profile)
• Required Key Cylinder Length: 30/10 mm
• Key Cylinder Included: No (must be ordered separately)
• Mounting Type: Flush-mounted (Unterputz)
• Connection Type: Screw terminals
• Material: Thermoplastic
• IP Protection Class: IP20
• Compatibility: Requires Busch-Jaeger central plate/cover for key switches
• Color (Mechanism): Black/Grey
• Operating Temperature: -5 °C to +45 °C

Recommendations

For complete installation, order a compatible Busch-Jaeger central plate/cover and a profile half cylinder (30/10 mm) separately. Ensure the switch is installed by a qualified electrician.