Mitsubishi SD-T20DC 24V DC Contactor, 3Pole 9A 690V 7.5kW DIN Rail Magnetic Switch

Mitsubishi SD-T20DC 24V DC Contactor

Mitsubishi SD-T20DC 24V is a durable non-reversing magnetic contactor for industrial motor circuits.

This Mitsubishi SD-T20DC 24V unit delivers stable DC coil operation for low-voltage control panels.

Primary Application Scenarios

This dc coil contactor controls three-phase motor operation in standard automation systems.

It serves as core motor control switch for small fan and pump drive equipment.

The industrial contactor supports safe power switching for packaging machine loads.

It fits compact automation panel component layouts for streamlined cabinet wiring.

Core Technical Specifications

Electrical Ratings

Coil voltage: 24V DC

Rated operational current: 9A (3-phase 690V AC)

Main poles: 3-pole

Rated operational voltage: 690V AC

Auxiliary contacts: 1NO + 1NC

AC-3 power rating: 4.5kW (220-240V), 7.5kW (380-690V)

Frequency range: 50/60Hz

Mechanical & Physical Data

Mounting type: Standard DIN rail mounting

Mechanical endurance: 10,000,000 no-load operations

Operating temperature range: -10°C to +40°C

Protection class: IP20 finger-safe protection

Wiring type: Screw-clamp terminal connection

Weight: 0.42kg

Key Product Advantages

DC operated design eliminates audible buzzing common with AC power switching relay units.

Standard 3-pole layout adapts to most three-phase industrial motor switching demands.

Long mechanical lifespan reduces frequent replacement and on-site maintenance costs.

IP20 protection prevents dust ingress and accidental live terminal contact risks.

Installation & Matching Guidelines

Mount Mitsubishi SD-T20DC 24V on standard DIN rails for fast and secure installation.

Pair this magnetic contactor with auxiliary blocks for expanded circuit control capacity.

Install surge suppressors to shield coil components from industrial voltage transients.

Match coil voltage strictly to 24V DC power sources to avoid premature unit failure.