This is a placeholder text
Support
Contact
Contact
Home » Product » D Test Switch

D-Test Switch

General information

SKU
D-Test Switch
Short Description
Plug-in, 4 pole
Long Description
Quantity

Features

  • Voltage presence indicator
  • Latchable manual switch
  • Magnetic arc blow-out
  • Manual operated relay (no coil installed)
  • To simulate a standard 4-pole D-relay
  • Instantaneous
  • 4 C/O contacts

Application

Testing and commissioning electrical installations. Can be used for maintenance purposes and fault finding. Test for voltage presence: Test for voltage presence: Test system by simulating energized relay: No voltage present Voltage is present Contacts are manually switched (LED indicator OFF) (LED indicator ON)
Generate Datasheet
Create and download a product datasheet with the latest available technical specifications.
The Mors Smitt brand and its entities are part of Wabtec Cooperation.
News Support Contact Office Locations Core competence
Follow us on

Railway
Products & Services

Relays & Sockets Circuit Breakers Hall Effect Sensors Energy Measurement Train Protection Warning Systems Automatic Power Control Maintenance & Test Equipment Signaling Relays Obsolescence & Life-Extension Solutions Custom Systems Solutions Reliability Diagnostics Services Obsolete Products

Power & Industry
Products & Services

Auxiliary, Trip & Supervision Relays Arc Flash Monitoring Test Block & Plug Systems Alarm Panels Industrial Plug-in Power Relays Medium Voltage Protection Relays Communication & Control Solutions Low Voltage Protection & Control Relays Test & Measurement Equipment Obsolete General Purpose relays Obsolete Industrial Relays & Sockets

Solutions for
Railway

Zero Direct Emission Units (XMU) Light Rail Vehicle (LRV) High Speed Trains (HST) Metro Trains Locomotives Passenger Coaches Freight Wagons (UIC) Trackside

Solutions for
Power Industry

Electrical Substation | Power Utility Smart Grids Renewable Energies Industry
Copyright©2026  Wabtec Netherlands BV •
Terms & Conditions • Privacy Statement • Cookie Policy • Corporate Information / Legal Notice

Welcome to the New Mors Smitt Website

We are excited to welcome you to our completely redesigned online experience. Our new website makes it easier than ever to explore our products, solutions, and expertise.

Alongside a modern, user-friendly design, we have introduced enhanced product navigation, new digital features, and a refreshed datasheet experience to improve readability, consistency, and ease of use.

Discover what's new
Read more