Schneider BKF 101 | Single Contact Block

The Schneider BKF 101 provides reliable switching for push buttons and selector switches. This single contact block features one normally open (NO) contact for simple control circuits. It handles up to 10 A of continuous current for demanding applications. Weighing only 0.02 kg, the Schneider BKF 101 fits into most standard actuator bodies. Its dimensions measure 28 mm x 22 mm x 38 mm.

Contact Configuration and Electrical Ratings

The Schneider BKF 101 uses a slow-break contact mechanism for reliable switching. This contact block accepts both screw and fast-on terminal connections for wiring flexibility. It operates across a wide voltage range from 24 V AC/DC up to 600 V AC. Moreover, the Schneider BKF 101 features silver alloy contacts for excellent conductivity. Consequently, this contact block delivers consistent performance even after thousands of operations.

Energy Storage and Mechanical Endurance

The Schneider BKF 101 contains no energy storage components like batteries or capacitors. This passive device requires no external power supply for its switching function. The contact block includes a positive opening mechanism for safety-related applications. Its mechanical lifespan reaches 1 million operations under normal conditions. Therefore, the Schneider BKF 101 provides long-term reliability without any maintenance.

Technical Specifications Table

Below are the complete technical parameters for engineers and procurement teams:

Parameter	Specification
Full Product Name	Schneider BKF 101
Product Category	Single Contact Block
Contact Type	1 normally open (NO)
Contact Material	Silver alloy
Rated Operational Current (AC-15)	10 A at 240 V AC
Rated Operational Current (AC-15)	6 A at 415 V AC
Rated Operational Current (AC-15)	3 A at 600 V AC
Rated Operational Current (DC-13)	0.55 A at 24 V DC
Rated Operational Current (DC-13)	0.27 A at 48 V DC
Rated Operational Current (DC-13)	0.1 A at 125 V DC
Rated Insulation Voltage	600 V AC
Rated Impulse Withstand Voltage	6 kV
Short-Circuit Protection	10 A cartridge fuse (gG type)
Terminal Types	Screw clamp + Fast-on (6.35 mm)
Wire Size (Screw Terminal)	AWG 22 to AWG 14 (0.5 mm² to 2.5 mm²)
Wire Size (Fast-on)	AWG 20 to AWG 16 (0.75 mm² to 1.5 mm²)
Screw Terminal Torque	0.8 N·m to 1.2 N·m
Contact Mechanism	Slow-break with positive opening
Mechanical Durability	1,000,000 operations
Electrical Durability (AC-15)	500,000 operations
Number of Components	1 contact spring + 1 actuator + 2 terminals + plastic housing
Energy Storage	None (passive device)
Net Weight	0.02 kg (20 grams)
Gross Weight (packaged)	35 grams
Dimensions (H x W x D)	28 mm x 22 mm x 38 mm
Degree of Protection (Front)	IP20 (IP40 on request)
Operating Temperature	-25°C to +70°C
Storage Temperature	-40°C to +85°C
Certifications	CE, CCC, UL 508, CSA C22.2
Compatible Actuators	XB4, XB5, XB6 series push buttons and selector switches

Installation and Application Details

The Schneider BKF 101 snaps directly into the back of compatible actuator bodies. Align the contact block with the guide rails and press firmly until it clicks. You can stack multiple contact blocks behind a single actuator for additional contacts. The Schneider BKF 101 requires no tools for mounting or removal from the actuator. Use either a screwdriver for screw terminals or a spade connector for fast-on tabs. This contact block suits motor start-stop stations, control panels, and safety circuits. Thus, the Schneider BKF 101 provides reliable switching for countless industrial applications.