Weidmuller WSI 6/LD 10-36V DC/AC Fuse Terminal Block

Technical Overview

The Weidmüller WSI 6/LD 10-36V DC/AC (Part No: 1011300000) is a robust W-Series fuse terminal block engineered for industrial control cabinets. It features a screw connection mechanism and an integrated LED status indicator operating between 10-36V AC/DC for rapid fault identification. Designed to accommodate G-Si 5 x 20 mm fuse cartridges, it offers reliable overload and short-circuit protection for circuits up to 6.3 A. The unit supports a rated cross-section of 6 mm², mounts securely on TS 35 DIN rails, and is constructed from Wemid, a flame-retardant (V-0) material ensuring operational stability across a wide temperature range.

Key Features

Integrated LED status indicator (10-36V AC/DC) for blown fuse detection
Compatible with standard G-Si 5 x 20 mm fuse cartridges
Screw connection technology ensuring vibration-proof contact
Rated for 6.3A current and 6mm² wire cross-section
Constructed from Wemid material with UL 94 V-0 flammability rating
Wide operating temperature range (-50 °C to +120 °C)
Standard TS 35 DIN rail mounting footprint

Technical Specification Matrix

Technical Parameter	Specification
Order No.	1011300000
Model Type	WSI 6/LD 10-36V DC/AC
GTIN (EAN)	4008190076115
Product Series	W-Series
Connection Type	Screw connection
Rated Cross-Section	6 mm²
Rated Voltage	36 V
Rated Current	6.3 A
Indicator Voltage Range	10-36 V AC/DC
Insulating Material	Wemid
Flammability Rating	UL 94 V-0
Clamping Range (min/max)	0.5 mm² / 10 mm²
Stripping Length	12 mm
Tightening Torque	0.8 - 1.6 Nm
Continuous Operating Temp	-50 °C to 120 °C
Standards/Approvals	CE, CSA, EAC, UL, UR, Lloyds Register
Fuse Size	G-Si 5 x 20 mm
Width	7.9 mm
Height	60 mm
Depth	71.5 mm
Wire Size AWG (min/max)	AWG 20 / AWG 8
Net Weight	19.47 g

Industrial Applications

1. 24V Control Circuit Protection

Protection of 24V DC auxiliary circuits and PLC inputs within industrial control panels using visual fuse monitoring.

Problem Solved

Isolates electrical faults locally to prevent system-wide shutdowns while the LED indicator allows maintenance personnel to instantly identify blown fuses without testing.

24V DC protectionPLC input fusingfault isolationvisual diagnostics

2. Process Instrumentation Power

Fused power distribution for distributed field instruments and sensors in process automation environments.

Problem Solved

Prevents a short circuit in a single field device from tripping the main power supply, ensuring high availability for the remaining instrumentation network.

sensor power distributionloop protectionselective coordinationinstrumentation fusing

3. HVAC Actuator Control

Fusing of 24V AC power lines for valve actuators and damper motors in Building Management Systems (BMS).

Problem Solved

Provides essential overcurrent protection for low-voltage HVAC components with vibration-resistant screw connections suitable for mechanical equipment rooms.

HVAC control circuits24V AC fusingactuator protectionBMS wiring