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Overview
The Schlegel Elektrokontakt BZLO is a precision-engineered momentary illuminated switch designed for industrial control panels, machinery safety circuits, and operator interfaces. This high-reliability switch features a single normally closed (NC) contact with AgNi (silver-nickel) contact material, ensuring excellent conductivity and resistance to arcing in demanding environments. The BZLO supports a rated insulation voltage of 250V AC and 300V DC, with a thermal continuous current of 6A, making it suitable for AC15 (240V/1.5A) and DC13 (250V/0.2A) applications. With a mechanical lifetime of 1 million switching cycles, it delivers long-term durability under rated loads. The switch includes integrated illumination (max. 60V, 1.2W) for clear visibility in low-light conditions, ideal for emergency-stop systems, control stations, and operator interfaces. The Faston terminal (2.8 x 0.8 mm) provides secure and efficient wiring, while Class II protective insulation enhances safety in industrial settings. Key applications include control panels, automation systems, machinery safety circuits, and operator interfaces where momentary actuation and reliable NC contact performance are critical.
- 1x normally closed (NC) contact with AgNi material for high conductivity and arc resistance
- Faston terminals (2.8 x 0.8 mm) for secure and efficient wiring
- Integrated illumination (max. 60V, 1.2W) for visibility in low-light conditions
- Rated insulation voltage: 250V AC / 300V DC; thermal continuous current: 6A
- Mechanical lifetime: 1 million switching cycles; meets EN 60947-5-1 standards
- Class II protective insulation for enhanced safety in industrial environments
- Mechanical lifetime: 1 million switching cycles under rated load
- Compliant with EN 60947-5-1 for positive opening contacts
- Manufactured in Germany by Schlegel Elektrokontakt
Specifications
Actuation Travel | 3 mm |
Certifications | , CCC, cCSAus, cURus, DNV, ENEC10, VDE, CE, TÜV_Süd, / UKCA, UR |
Connection Type | Faston Terminal 2.8 x 0.8 mm |
Contact Material | AgNi |
Current Rating | 16 A |
Ip Rating | II |
Material | AgNi |
Poles | 1NC |
Poles | 1xNC |
Utilization Category | AC15 B300 DC13 Q300 |
Voltage Rating | 300 V |

AZL4O
Switching Function: Momentary Travel: 3 / 6 mmContact Type: Faston Terminal 2.8 x 0.8 mm Contact Equipment: 4 x NCContact Material: AgNi Protection Class: II (protective insulation)Illumination: Yes Lambholder: T55K Labeling Option: No
BZLI
Switching Function: Momentary Travel: 3 mmContact Type: Faston Terminal 2.8 x 0.8 mm Contact Equipment: 1 x NOContact Material: AgNi Protection Class: II (protective insulation)Illumination: Yes Lambholder: W2x46d Labeling Option: No
BZLOOK
Switching Function: Momentary Travel: 3 mmContact Type: Screw Connection 2.5 mm? Contact Equipment: 2 x NCContact Material: AgNi Protection Class: II (protective insulation)Illumination: Yes Lambholder: W2x46d Labeling Option: No
AF2
Switching Function: Maintained Travel: 6 mmContact Type: Faston Terminal 2.8 x 0.8 mm Contact Equipment: 2 x NC + 2 x NOContact Material: AgNi Protection Class: II (protective insulation)Illumination: No Labeling Option: No
AFL2
Switching Function: Maintained Travel: 6 mmContact Type: Faston Terminal 2.8 x 0.8 mm Contact Equipment: 2 x NC + 2 x NOContact Material: AgNi Protection Class: II (protective insulation)Illumination: Yes Lambholder: T55K Labeling Option: No
BZL_439
Switching Function: Momentary Travel: 3 mmContact Type: Faston Terminal 2.8 x 0.8 mm Contact Equipment: 2 x NC + 2 x NOContact Material: AgNi Protection Class: II (protective insulation)Illumination: Yes Labeling Option: No
BFK
Travel: 3 mmContact Type: Screw Connection 2.5 mm?Protection Class: II (protective insulation) Contact Equipment: 1 x NC + 1 x NOFrequently Asked Questions
What type of contact is the BZLO switch?
The BZLO is a twin contactor with separate plungers, illuminated, and positively opening.
What are the operating temperature ranges for the BZLO?
The operating temperature is -30°C to 70°C without illumination, -30°C to 55°C with incandescent lamps, and -30°C to 65°C with LED lighting.
What is the minimum current and voltage for the BZLO?
The minimum current is 1 mA and the minimum voltage is 5 V.
What is the mechanical and electrical lifespan of the BZLO?
The mechanical lifespan is 1 million switching cycles, and the electrical lifespan is 1 million switching cycles at nominal load.
What is the contact material used in the BZLO?
The contact material is AgNi.
What are the connection types for the BZLO?
The BZLO features flat-plug connections of 2.8 mm x 0.8 mm.
