Phoenix PTTB 1,5/S Double-Level Terminal Block, Push-in, 1.5mm², Grey

Double-level terminal block with push-in connection technology, engineered for high-density wiring in control cabinets and distribution boxes. This Phoenix PTTB 1,5/S offers four push-in termination points across two levels, enabling space-saving signal and power distribution up to 17.5 A and 500 V. The tool-free push-in design accepts solid and stranded conductors from 0.14 to 1.5 mm², dramatically reducing installation time compared to screw terminals.

Advantages

Two-level design doubles wiring density on the DIN rail, saving valuable cabinet space. Push-in terminations allow direct insertion of rigid conductors or flexible conductors with ferrules—no tools required. The grey polyamide housing is halogen-free and UL 94 V0 rated, ensuring fire safety and durability in harsh industrial environments. Clear marking areas on each level simplify circuit identification and maintenance.

Suitable for

• Control panel builders needing compact, high-density terminal strips
• Machine builders wiring sensors, actuators, and PLC I/O signals
• Industrial automation systems with frequent reconfiguration
• Applications requiring vibration-resistant, maintenance-free connections

Key specifications

• Type: Double-level terminal block
• Connection: Push-in
• Nominal cross section: 1.5 mm²
• Positions: 4 (2 per level)
• Rated voltage: 500 V (IEC)
• Rated current: 17.5 A
• Mounting: DIN rail NS 35/7,5 or NS 35/15
• Operating temperature: -60 °C to +105 °C
• Approvals: UL, cUL, VDE, EAC

Recommendations

For optimal performance, use ferrules on flexible conductors and ensure proper end-stop placement on the DIN rail. Pair with Phoenix end covers and partition plates to maintain clearances in mixed-voltage installations.