Dold Monitoring Relay, DPDT Contact Configuration, DIN Rail Mount, 220-240V AC MK5880N.12 AC50-400Hz 220-240V 5-100kOhm

Dold MK5880N.12 AC50-400Hz Monitoring Relay is engineered for robust performance in electrical automation and control systems, suitable for single-phase and 3-phase AC networks up to 500 volts and frequencies between 10 and 1000 Hz. This monitoring relay features a double-pole double-throw (DPDT) contact configuration ensuring dependable switching operations.

The relay conveniently mounts on DIN rails, simplifying integration into electrical cabinets and control panels. It supports a supply AC voltage of 220 to 240 volts at frequencies ranging from 50 to 400 Hz, making it versatile for various industrial applications. Adjustable tripping resistance between 5 and 100 kOhm allows precise sensitivity to insulation resistance monitoring.

Safety and operational reliability are enhanced by galvanically separated auxiliary voltage, measuring circuits, and output contacts, minimizing interference and hazards. Both manual and automatic reset modes are supported with accessible test and reset buttons for operator convenience. LED indicators clearly display operational status and alarm conditions, assisting in quick diagnostics.

Connections for external test and reset buttons enable integration with broader control schemes. The device construction conforms to IP40 and IP20 protection ratings, allowing deployment in typical industrial environments while safeguarding against dust and mechanical impact. It operates reliably between -20°C and +60°C, suitable for diverse climatic conditions.

Compact dimensions (90mm height, 22.5mm width, and 97mm length) allow space-efficient installation. The product is manufactured in Germany, reflecting premium build quality and compliance with RoHS, CE, and CCC standards. The MK 5880N series offers options with additional features such as pre-warning relays and analogue outputs available in related models.

This monitoring relay finds applications in industrial electrical automation, manufacturing plants, HVAC systems, water treatment facilities, and other electrical monitoring systems requiring precise insulation resistance tracking and system protection.

Equipped with DPDT contact configuration for reliable switching. Mounts easily on DIN rails for versatile installation. Supports supply voltage of 220 to 240V AC at 50-400Hz frequency. Manual and auto reset features with test and reset button accessible.

Galvanically separated auxiliary voltage, measuring circuit, and output contacts ensure safety. LED indicators provide clear status of operation and alarm conditions. Compatible with external test and reset button connections for flexible control.

Compact industrial-grade construction with IP40/IP20 protection ratings. Operating temperature range from -20°C to +60°C for harsh conditions. Manufactured in Germany with RoHS, CE, and CCC compliance. Compact size suitable for control panels and DIN rail mounting.

Explore the range of Dold Monitoring Relays and related electrical automation products at EnvMart for reliable industrial and laboratory instrumentation solutions.