RUKO STB-180°-M4-S-m 2-Conductor DIN-Rail Terminal Block, Push-in CAGE CLAMP, 2.5 mm², Gray

The STB-180°-M4-S-m from RUKO GMBH is a 2-conductor DIN-rail terminal block that uses push-in CAGE CLAMP® technology for fast, tool-free wiring. Unlike screw-type blocks, this unit accepts solid and fine-stranded conductors up to 4 mm² without ferrules, cutting installation time on control panels and building wiring.

Highlights

• 2 conductors, gray polyamide housing
• Push-in CAGE CLAMP® actuation
• Nominal cross section 2.5 mm² (12 AWG)
• Accepts solid and fine-stranded conductors 0.25–4 mm² (22–12 AWG)
• Rated 800 V, 24 A, surge voltage 8 kV
• Mounts on 35 mm DIN rail
• Operating temperature -35 to +85 °C
• Flammability rating UL94 V-0

In daily use

The push-in mechanism requires no special tools—just strip the conductor and insert it. The CAGE CLAMP® spring maintains constant contact pressure, reducing maintenance and preventing loosening under vibration. The compact gray body fits standard 35 mm DIN rails, making it suitable for distribution boards, machine controls, and building automation.

Full specifications

• Number of conductors: 2
• Connection technology: CAGE CLAMP®
• Actuation type: Push-in
• Nominal cross section: 2.5 mm² (12 AWG)
• Solid conductor size: 0.25 … 4 mm² (22 … 12 AWG)
• Fine-stranded conductor size: 0.25 … 4 mm² (22 … 12 AWG)
• Nominal voltage (III/3): 800 V
• Rated surge voltage (III/3): 8 kV
• Nominal current: 24 A
• Insulating material: Polyamide (PA)
• Color: Gray
• Mounting type: DIN-rail 35
• Pollution degree: 3
• Overvoltage category: III
• Operating temperature: -35 to +85 °C
• Flammability rating: UL94 V-0
• Approvals: UL, CSA, VDE, ENEC

Final note

The STB-180°-M4-S-m combines push-in speed with a wide conductor range, making it a versatile choice for professional electrical installations.