Wago 281-612/281-541 Fuse Disconnect Terminal Block

Technical Overview

The Wago 281-612/281-541 is a 2-conductor fuse terminal block designed for industrial applications. It features a pivoting fuse holder for 5 x 25 mm miniature metric fuses and includes an integrated LED indicator for clear blown fuse indication. Utilizing Wago's reliable CAGE CLAMP® spring connection technology, it ensures fast, vibration-proof, and maintenance-free wiring. This gray, polyamide-constructed terminal block is suitable for DIN-rail mounting and accommodates a wide range of conductor sizes.

Key Features

2-conductor design for efficient wiring and space-saving installation.
Pivoting fuse holder allows for quick and easy replacement of 5 x 25 mm miniature metric fuses.
CAGE CLAMP® spring connection technology ensures secure, vibration-proof, and maintenance-free connections.
DIN-rail mountable (35 x 15 and 35 x 7.5) for standard industrial enclosure integration.
Accommodates fine stranded or solid conductors from 0.08 mm² to 4 mm² (28 AWG to 12 AWG).
Constructed from durable gray Polyamide (PA66) for robust industrial environments.
High rated voltage of 800 V (IEC) and rated current of 10 A (IEC) for diverse power distribution needs.

Technical Specification Matrix

Parameter	Value
Rated Voltage (IEC)	800 V
Rated Current (IEC)	10 A
Rated Impulse Voltage (IEC)	8 kV
Operating Voltage for LED Indicator	15 – 30 VDC
Wire Size (AWG)	28 AWG to 12 AWG
Wire Size (mm²)	0.08 mm² to 4 mm²
Connection Technology	CAGE CLAMP®
Fuse Type	Cylindrical fuse 5 x 25 mm
Mounting Type	DIN-35 Rail (35 x 15 and 35 x 7.5)
Insulation Material	Polyamide (PA66)
Flammability Class	V0 per UL94
Color	Gray

Industrial Applications

1. Industrial Control Panel Fuse Protection

This fuse terminal block is ideal for protecting control circuits within industrial panels by providing overcurrent protection for individual components. The integrated LED indicator immediately signals a blown fuse, allowing maintenance personnel to quickly identify and replace faulty fuses without extensive troubleshooting.

Problem Solved

Rapid identification of blown fuses minimizes downtime and streamlines maintenance in complex industrial control systems.

Overcurrent ProtectionControl CircuitFault IndicationDIN-Rail MountIndustrial Automation

2. Machinery Safety Circuit Disconnect

In machinery safety circuits where a clear visual indication of fuse status is crucial, this terminal block offers a reliable solution. Its 800V IEC rating and 10A current capacity, combined with the pivoting fuse holder for 5x25mm fuses, make it suitable for various machinery applications requiring accessible and safe circuit disconnection and protection.

Problem Solved

Ensures safe operation and quick fault diagnosis in critical machinery safety circuits, contributing to worker safety and operational efficiency.

Safety CircuitFused DisconnectMachine ControlHigh VoltageTroubleshooting

3. Building Automation System Power Distribution

For distributed power and control in building automation systems, this terminal block provides fused protection for devices like sensors, actuators, or lighting controls. The CAGE CLAMP® technology ensures vibration-proof connections, crucial in building environments, and the compact design with DIN-rail mounting optimizes space in distribution boxes.

Problem Solved

Provides reliable, fused power distribution with quick fault detection for individual loads within building automation infrastructure, ensuring system integrity and reducing service time.

Building AutomationPower DistributionCircuit ProtectionVibration-ProofCompact Design