WAGO 281-611/281-541 Fused Disconnect Terminal Block

Technical Overview

The WAGO 281-611/281-541 is a 2-conductor fused disconnect terminal block featuring a pivoting fuse holder for 5 x 20 mm miniature metric fuses and integrated blown fuse indication via LED. It utilizes CAGE CLAMP® connection technology for reliable wire termination and is designed for DIN-rail mounting. This terminal block handles a wide range of wire sizes and is suitable for various industrial applications requiring circuit protection and status monitoring.

Key Features

Pivoting fuse holder for 5 x 20 mm miniature metric fuses.
CAGE CLAMP® connection technology ensures secure, vibration-proof wiring.
DIN-rail mountable (35 x 15 and 35 x 7.5) for flexible installation.
Front-entry wiring for convenient connection.
Accepts solid and fine-stranded conductors from 0.08 to 4 mm² (28-12 AWG).
High rated voltage of 800V (IEC/EN) and 600V (UL).
Compact design with an 8mm width for space-saving installations.
RoHS Compliant for environmental adherence.
Insulating material made of Polyamide 6.6 (PA 66).

Technical Specification Matrix

Parameter	Value
Number of Positions	2
Wire Size (AWG)	28 AWG to 12 AWG
Conductor Area CSA	0.08 … 4 mm²
Connection Technology	CAGE CLAMP®
Rated Voltage (IEC/EN 60664-1)	800V
Rated Impulse Voltage (III / 3)	8kV
Rated Current	10A
Fuse Size Held	5 x 20 mm miniature metric
Blown Fuse Indication	LED (15 - 30 V)
Mounting Type	DIN-rail 35 x 15 and 35 x 7.5
Insulating Material	Polyamide 6.6 (PA 66)
Color	Gray
Strip Length	9 … 10 mm / 0.35 … 0.39 Inch
Pollution Degree	3
Overvoltage Category	III
IP Rating	IP20
RoHS Compliant	Yes

Industrial Applications

1. Industrial Control Panel Fuse Protection with Status Monitoring

This terminal block is ideal for protecting control circuits in industrial panels. Its 800V/10A rating and 5x20mm fuse holder provide robust overcurrent protection, while the integrated LED blown fuse indication enables rapid fault identification, minimizing downtime in complex machinery. The compact 8mm width and DIN-rail mounting optimize space utilization in crowded panels.

Problem Solved

Prevents damage to downstream equipment from overcurrents and provides immediate visual feedback for troubleshooting blown fuses, enhancing system reliability and maintainability.

Control PanelOvercurrent ProtectionFuse MonitoringDIN RailIndustrial AutomationLED Indication800V

2. HVAC System Power Distribution and Protection

The WAGO 281-611/281-541 is well-suited for power distribution and protection within HVAC systems. Its 800V rated voltage and 10A current capacity can protect various components such as motors, sensors, and control boards. The CAGE CLAMP® connection technology ensures vibration-proof and reliable connections, which is critical for systems with moving parts, while the IP20 rating is suitable for enclosed electrical cabinets.

Problem Solved

Offers reliable circuit protection and facilitates quick replacement of fuses without extensive rewiring, crucial for maintaining continuous operation of climate control systems.

HVACCircuit ProtectionPower DistributionFuse DisconnectCAGE CLAMPIP20Vibration-proof

3. Building Automation System (BAS) Component Isolation and Protection

In building automation systems, individual protection and isolation of sensors, actuators, and communication modules are essential. This fused disconnect terminal block provides localized overcurrent protection with its 10A rating and a safe, visible means to disconnect power for maintenance. The LED indication helps facility managers quickly identify and address issues, supporting efficient building management and system serviceability for wiring from 28-12 AWG.

Problem Solved

Provides localized overcurrent protection and a safe, visible means to disconnect power for troubleshooting or maintenance of individual BAS components, improving system safety and serviceability.

Building AutomationCircuit IsolationSystem MaintenanceFused TerminalLED Indication0.08-4mm² wire