Technical Overview

The Weidmüller AFS 4 2C 10-36V BK is a high-performance, compact fuse terminal block featuring PUSH IN connection technology for efficient and tool-free wiring. Designed for industrial voltage applications between 10V and 36V, it accommodates standard G-Si 5 x 20 mm cartridge fuses within a pivoting fuse holder. This unit includes a red LED indicator for immediate blown-fuse detection, simplifying maintenance in control cabinets. Rated for a current of 6.3 A and a wire cross-section of 4 mm², it ensures reliable circuit protection. The terminal block is built from Wemid material with a UL 94 V-0 flammability rating and holds ATEX and IECEx certifications for hazardous location use.

Key Features

PUSH IN connection technology for tool-free wiring
Pivoting fuse holder for G-Si 5 x 20 mm cartridge fuses
Integrated Red LED status indicator (10-36V)
Compact 6.1 mm width design
Rated current of 6.3 A with 4 mm² cross-section capacity
Self-extinguishing Wemid material (UL 94 V-0)
ATEX and IECEx certified for hazardous environments
Standard TS 35 DIN rail mounting

Technical Specification Matrix

Technical Parameter	Specification
Version	Fuse terminal, PUSH IN, 4 mm², 36 V, 6.3 A, black
Order No.	2429870000
Type	AFS 4 2C 10-36V BK
GTIN (EAN)	4050118439588
Depth (inches)	2.677 inch
Depth including DIN rail	69 mm
Height (inches)	2.913 inch
Width (inches)	0.24 inch
Storage temperature	-25 °C...55 °C
Ambient temperature	-5 °C...40 °C
Continuous operating temp., min.	-60 °C
Continuous operating temp., max.	130 °C
Material	Wemid
Color	black
UL 94 flammability rating	V-0
Cartridge fuse	G-Si. 5 x 20
Display	Red LED
Fuse holder (cartridge holder)	Pivoting
Leakage current, max.	0.5 mA
Operating voltage, max.	36 V
Power loss, composite arrangement (Overload & Short-circuit)	1.6 W at 6.3 A @ 34°C
Power loss, individual arrangement (Overload & Short-circuit)	1.6 W at 6.3 A @ 31°C
Power loss, composite arrangement (Short-circuit only)	2.5 W at 6.3 A @ 32°C
Power loss, individual arrangement (Short-circuit only)	4.0 W at 6.3 A @ 41°C
Type of voltage for indicator	AC/DC
Rated cross-section	4 mm²
Rated voltage	36 V
Rated current	6.3 A
Current at maximum wires	6.3 A
Certificate No. (ATEX)	TUEV17ATEX8064U
Certificate No. (IECEX)	IECEXTUR17.0030U
Certificate No. (cURus)	E60693
Marking EN 60079-7	Ex ec II C Gc
End cover plate required	Yes
Number of potentials	1
Number of levels	1
Number of clamping points per level	2
Rail	TS 35
PE connection	No
Connection type	PUSH IN
Stripping length	10 mm ... 12 mm
Clamping range, min.	0.14 mm²
Clamping range, max.	4 mm²
Wire connection cross section AWG, min.	AWG 26
Wire connection cross section AWG, max.	AWG 10
Tube length (Wire end ferrule with plastic collar) min.	8 mm
Tube length (Wire end ferrule with plastic collar) max.	12 mm
Cross-section for conductor connection (flexible with ferrule), min.	0.5 mm²
Cross-section for conductor connection (flexible with ferrule), max.	4 mm²
Depth	68 mm
Height	74 mm
Width	6.1 mm
Net weight	17.751 g

Industrial Applications

1. 24V DC Control Circuit Protection

In automated industrial control panels, identifying a tripped circuit quickly is critical to minimizing downtime. The AFS 4 2C provides robust overcurrent protection for 24V DC control lines.

Problem Solved

Eliminates the time-consuming process of manually testing fuses by providing a visual Red LED indicator that immediately signals a blown fuse.

24V DCOvercurrent ProtectionLED IndicationControl Cabinet

2. Hazardous Area Signal Distribution

Process industries often require components that meet stringent safety standards for explosive atmospheres. This terminal block is certified for use in such demanding environments.

Problem Solved

Satisfies Ex ec II C Gc requirements with ATEX and IECEx certifications, allowing safe deployment in Zone 2 hazardous areas without additional enclosures for the terminal itself.

ATEXIECExHazardous LocationsEx ec II C Gc

3. High-Density Sensor Wiring

Modern machinery requires connecting numerous sensors and actuators in limited DIN rail space. The compact 6.1 mm width and PUSH IN technology facilitate high-density wiring.

Problem Solved

Reduces installation time and cabinet footprint by up to 50% compared to screw terminals, while ensuring vibration-resistant gas-tight connections.

PUSH IN TechnologyHigh DensityDIN RailVibration Resistant

Weidmuller AFS 4 2C 10-36V BK Fuse Terminal Block

Weidmüller AFS 4 2C 10-36V BK Fuse Terminal Block

Technical Overview

Key Features

Technical Specification Matrix

Industrial Applications

1. 24V DC Control Circuit Protection

2. Hazardous Area Signal Distribution

3. High-Density Sensor Wiring