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Schlegel Elektrokontakt BZLII5K - Switching Function: Momentary Travel: 3 mmContact Type: Screw Connection 2.5 mm? Contact Equipment: 2 x NOContact Material: AgNi Protection Class: II (protective insulation)Illumination: Yes Lambholder: T55K Labeling Option: No
Schlegel Elektrokontakt

BZLII5K

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Overview

The Schlegel Elektrokontakt BZLII5K is a precision-engineered illuminated momentary switch designed for industrial control panels, machinery, and automation systems. This twin-contact device features two normally open (NO) AgNi (silver-nickel) contacts with a rated mechanical and electrical lifespan of 1 million switching cycles, ensuring long-term reliability in demanding environments. The switch operates with a 3mm travel distance and supports wire cross-sections from 0.34 mm² to 2.5 mm² via secure screw terminals, tightened to 0.4 Nm for consistent electrical connections. Electrically, the BZLII5K is rated for a thermal continuous current (Ith) of 6A and an insulation voltage (Ui) of 300V. It handles AC15 applications at 240V with a rated operating current (Ie) of 1.5A, and DC13 applications at 250V with Ie options of 0.2A, 0.4A, 1A, or 2A. Minimum switching parameters are 5V and 1mA, making it suitable for low-power control circuits. The switch complies with IEC/EN 60947-5-1 and EN 61058-1 standards, including positive opening contact (NC) requirements for safety-critical applications. Illumination is integrated via a T5.5K lamp holder, supporting LED or incandescent lamps up to 1.2W at 60V maximum. The lamp operates at 24V AC/DC with a current draw of 11mA, enhancing visibility in control panels. Storage temperature range is -50°C to 85°C. Ideal for machinery control, operator interfaces, and automation systems, the BZLII5K (SKU: BZLII5K) delivers precise tactile feedback, durable construction, and compatibility with standard industrial components. Its compact design and screw connection terminals simplify integration into existing control panels or machinery enclosures.
  • 2 normally open (NO) AgNi contacts for reliable switching
  • 3mm travel distance with 1 million mechanical/electrical cycles
  • Screw terminals for 0.34–2.5 mm² wire cross-sections (0.4 Nm torque)
  • Illuminated T5.5K lamp holder (24V AC/DC, 11mA, max 1.2W)
  • Rated IP20, operating temperature -30°C to 70°C (LED) / 55°C (incandescent)

Specifications

Actuation Travel
3 mm
Certifications
CCC, cCSAus, DNV, ENEC10, VDE, CE, UKCA
Contact Material
AgNi
Utilization Category
AC15 B300 DC13 Q300
Switching Function: Maintained Travel: 6 mmContact Type: Faston Terminals 2.8 X 0.8 Mm Contact Equipment: 1 x NC + 1 x NOContact Material: AgNi Protection Class: II (protective insulation)Illumination: Yes Lambholder: T55K Labeling Option: No

AFL

Switching Function: Maintained Travel: 6 mmContact Type: Faston Terminals 2.8 X 0.8 Mm Contact Equipment: 1 x NC + 1 x NOContact Material: AgNi Protection Class: II (protective insulation)Illumination: Yes Lambholder: T55K Labeling Option: No
Switching Function: MomentaryContact Type: Screw Connection 2.5 mm?Protection Class: II (protective insulation) Contact Equipment: 1 x NO

MTI_AU

Switching Function: MomentaryContact Type: Screw Connection 2.5 mm?Protection Class: II (protective insulation) Contact Equipment: 1 x NO
Base Material: PlasticColor: WhiteCertifications: ULProduct Group: Accessories

IW2

Base Material: PlasticColor: WhiteCertifications: ULProduct Group: Accessories
Switching Function: Momentary Travel: 6 mmContact Type: Faston Terminal 2.8 x 0.8 mm Contact Equipment: 1 x NC + 1 x NOContact Material: AgNi Protection Class: II (protective insulation)Illumination: Yes Lambholder: T55K Labeling Option: No

ATL

Switching Function: Momentary Travel: 6 mmContact Type: Faston Terminal 2.8 x 0.8 mm Contact Equipment: 1 x NC + 1 x NOContact Material: AgNi Protection Class: II (protective insulation)Illumination: Yes Lambholder: T55K Labeling Option: No
Color: WhiteBase Material: PlasticProduct Group: AccessoriesCertifications: UL

IW16

Color: WhiteBase Material: PlasticProduct Group: AccessoriesCertifications: UL
Color: WhiteBase Material: PlasticCertifications: ULProduct Group: Accessories

IW50

Color: WhiteBase Material: PlasticCertifications: ULProduct Group: Accessories
Color: WhiteBase Material: PlasticCertifications: ULProduct Group: Accessories

IW4

Color: WhiteBase Material: PlasticCertifications: ULProduct Group: Accessories
Contact Type: Screw Connection 2.5 mm?Lambholder: BA9sIP Protection Front: IP00Color: Yellow

MZL

Contact Type: Screw Connection 2.5 mm?Lambholder: BA9sIP Protection Front: IP00Color: Yellow

Frequently Asked Questions

What are the operating temperature ranges for the BZLII5K?

The operating temperature range is -30°C to 70°C without illumination. With incandescent lamps, it's -30°C to 55°C, and with LED illumination, it's -30°C to 65°C.

What is the maximum lamp voltage and power for the BZLII5K?

The maximum lamp voltage is 60V, and the maximum lamp power is 1.2 W.

What is the protection rating of the BZLII5K?

The protection rating of the BZLII5K is IP20.

What types of approvals does the BZLII5K have?

The BZLII5K has approvals including CCC, cCSAus, DNV, ENEC10, VDE, CE, and UKCA.

What is the mechanical and electrical lifespan of the BZLII5K?

The device has a mechanical lifespan of 1 million switching cycles and an electrical lifespan of 1 million switching cycles under nominal load.

What are the electrical ratings for AC15 and DC13 usage categories?

For AC15 B300, the rated insulation voltage is 250 V and rated operating voltage is 240 V with a rated operating current of 1.5 A. For DC13 Q300, the rated insulation voltage is 300 V and rated operating voltage is 250 V / 125 V / 60 V / 24 V with a rated operating current of 0.2 A / 0.4 A / 1 A / 2 A.

What is the connection capacity and torque for the screw terminals?

The connection capacity is 0.34 to 2.5 mm², and the recommended torque for the screw terminals is 0.4 Nm.

What is the actuation travel of the BZLII5K?

The actuation travel for the BZLII5K is 3 mm.

What is the minimum current and voltage for the BZLII5K?

The minimum current is 1 mA under laboratory conditions, and the minimum voltage is 5 V.

What are the electrical ratings for 12V DC applications?

For 12V DC, the rated operating voltage (Ue) is 12 V, and the rated operating current (Ie) is 6(6) A according to IEC/EN 61058-1.