Can flexible conductors without ferrules be connected to terminals blocks?

Phoenix Contact Connection Terminal Blocks, Dealers and Distributors in India

UC series Cabur: flying lever terminal block

Device Terminal Blocks with Screw Connections Made by Phoenix Contact

Royal Apex Insulated Ferrules Terminal Block Cord End Wire Tubular Connector, Electrical Crimp Cable Lugs, Terminal Cable Crimp Cable Sleeve for Wire Connection (Pack of 100) (0.75mm - E7508, Blue): Buy Online

What is a Wire Ferrule?

Ferrules Prevent Connection Failures, 2015-01-15, Assembly Magazine

How To Crimp Wire Ferrule With And Without Ferrule Crimping Tool - Pliersman

connector - Can I connect three wires using a screw terminal? - Electrical Engineering Stack Exchange

Ferrules: What They Are And How They're Used - News

Klippon® Connect SNAP IN Terminal Blocks - Weidmuller

Spring PCB terminal block for stranded wire - Electrical Engineering Stack Exchange

Terminal Blocks: Ultimate Guide, Proax, Blog

Copper Ferrule Terminal Block, Copper Electrical Connector