WAGO 281-512 Fuse Plug for Terminal Blocks

Technical Overview

6mm wide fuse plug with pull-tab, 250V/6.3A rating, compatible with 5x20mm and 5x25mm miniature fuses, for DIN-rail applications.

Key Features

Pull-tab for easy fuse replacement and handling.
Compatible with miniature metric fuses (5 x 20 mm and 5 x 25 mm).
Designed for DIN-rail mounting applications.
Includes a port for optional LED indicator integration.
Rated at 250 V AC/DC and 6.3 A for circuit protection.
Compact 6 mm width for space-efficient installations.
Insulation material: Polyamide 66 (PA 66).
Wide operating temperature range of -60°C to +105°C.

Technical Specification Matrix

Parameter	Value
Nominal Voltage	250 V AC/DC
Rated Current	6.3 A
Width	6 mm / 0.236 inch
Operating Temperature	-60°C to +105°C
Processing Temperature	-35°C to +85°C
Insulation Material	Polyamide 66 (PA 66)
Fire Load	0.081 MJ
Fuse Compatibility	Miniature metric fuses 5 x 20 mm and 5 x 25 mm
Mounting Type	DIN-Rail (for associated terminal blocks)
Color	Gray
Physical Weight (kg)	0.01
Dimensions L x W x H (cm)	0 x 0.6 x 0

Industrial Applications

1. Industrial Control Panel Circuit Protection

This fuse plug is ideally suited for protecting individual control circuits within industrial automation and control panels. Its compact 6mm width enables high-density wiring configurations, and the 250V/6.3A rating is common for standard control voltage applications. The integrated pull-tab design significantly simplifies maintenance and fuse replacement, minimizing equipment downtime in critical industrial processes.

Problem Solved

Provides reliable, space-efficient overcurrent protection for individual circuits within crowded industrial control panels, facilitating quick and safe maintenance.

DIN-rail250V6.3Acircuit protectioncontrol panelscompact designfuse replacement

2. Local Overcurrent Protection in Machinery

The WAGO 281-512 can be integrated into machinery to provide localized overcurrent protection for auxiliary components such as sensors, actuators, or small motors connected to a main control system. Its compatibility with common 5x20mm and 5x25mm metric fuses allows for flexible selection of protection ratings, while the robust Polyamide 66 insulation ensures durability and safety in demanding industrial environments with operating temperatures up to 105°C.

Problem Solved

Offers robust and customizable local overcurrent protection for sensitive or critical components within industrial machinery, preventing damage and improving system reliability.

Overcurrent protectionauxiliary circuitsmachine safety5x20mm fuse5x25mm fuseindustrial environmentPolyamide 66105°C

3. HVAC/R System Component Safeguarding

For commercial or light industrial Heating, Ventilation, Air Conditioning, and Refrigeration (HVAC/R) units, individual components like fan motors, solenoid valves, or sensitive control boards often require dedicated overcurrent protection. The WAGO 281-512 offers a reliable, maintainable solution that can be easily integrated into electrical enclosures within HVAC/R systems, providing protection against overcurrents up to 6.3A across a wide operating temperature range from -60°C to +105°C, ensuring continuous operation and equipment longevity.

Problem Solved

Safeguards critical components within HVAC/R systems from electrical overloads, ensuring operational continuity and extending the lifespan of sensitive equipment in varied temperature conditions.

HVAC/Rcomponent protectionelectrical enclosuresovercurrent6.3A-60°C to +105°Cmaintainability