Phoenix 3210567 PTTB 2.5 Double-Level Terminal Block, Push-in, 2.5 mm², 500 V, 22 A, Grey

Rated for a surge voltage of 6 kV and 22 A nominal current, the Phoenix 3210567 PTTB 2.5 double-level terminal block handles demanding industrial control and power distribution with ease. Its push-in connection technology enables tool-free wiring of solid and stranded conductors, cutting installation time by up to 50% compared to screw terminals while maintaining a secure, vibration-resistant connection. The compact double-level design provides four connection points in the footprint of a standard terminal, doubling wiring density on the DIN rail.

Overview

The PTTB 2.5 is a two-level terminal block with four push-in connections, rated for a nominal cross section of 2.5 mm². It accommodates solid conductors from 0.14 to 4 mm² and flexible conductors from 0.14 to 2.5 mm², with a stripping length of 10 mm. The grey polyamide housing is halogen-free and flame-retardant to UL 94 V0, ensuring safety in the event of fire. The terminal mounts on standard 35 mm DIN rails (NS 35/7.5 and NS 35/15) and is designed for use in pollution degree 3 environments with overvoltage category III.

What stands out

• Push-in connection technology: no tools required for solid conductors, reducing wiring time by up to 50% compared to screw terminals.
• Double-level design: four connections in one compact block, saving space on the DIN rail.
• High electrical ratings: 500 V nominal voltage and 22 A nominal current per IEC, suitable for a wide range of industrial loads.
• Robust materials: polyamide housing with V0 flammability rating.

Technical details

• Terminal block type: Double-level terminal block
• Connection method: Push-in connection
• Number of levels: 2
• Number of connections: 4
• Nominal cross section: 2.5 mm²
• Nominal voltage (IEC): 500 V
• Nominal current (IEC): 22 A
• Rated surge voltage: 6 kV
• Insulating material: PA (Polyamide)
• Colour: Grey
• Mounting type: DIN rail NS 35/7.5, NS 35/15
• Pollution degree: 3
• Overvoltage category: III
• Flammability rating (UL 94): V0
• Operating temperature: -60 °C to 105 °C
• Stripping length: 10 mm
• Min. conductor cross section (solid): 0.14 mm²
• Max. conductor cross section (solid): 4 mm²
• Min. conductor cross section (flexible): 0.14 mm²
• Max. conductor cross section (flexible): 2.5 mm²

Our verdict

The Phoenix 3210567 PTTB 2.5 is an excellent choice for space-constrained industrial applications requiring high-density wiring and reliable push-in connections. Its robust design and high electrical ratings make it a dependable component for control cabinets and power distribution systems.