Summary

• 5 Pack of Phoenix Contact STTB 1,5 (3031157) double-level spring-cage terminal blocks with 1 compatible D-STTB 2,5 (3030459) end plate. Each terminal block features four conductor connections across two electrically separate levels, a nominal current rating of 17.5A, a nominal voltage rating of 500V, and a 1.5 mm² nominal conductor cross section.
• Designed for compact electrical wiring in industrial automation, machinery, and control cabinets.
• Package includes 5 gray terminal blocks and 1 gray end plate, for a total of 6 components.
• This item was sourced from a new, uncommissioned equipment cabinet that was dismantled prior to being placed into service.
• Please review all photos for the exact item, condition, and components included.

Product Description

• The Phoenix Contact STTB 1,5 is a double-level terminal block from the CLIPLINE Complete ST series, designed to provide secure electrical connections while conserving space in industrial control cabinets and electrical installations.
• Each terminal block features four spring-cage conductor connections arranged across two levels. The double-level configuration accommodates two separate electrical potentials, making it suitable for organized signal wiring, industrial automation, machinery, and electrical distribution applications.
• Spring-cage technology provides vibration-resistant conductor connections without conventional screw clamping. The design supports solid and flexible conductors and allows efficient wiring using an appropriate actuation tool.
• With a nominal current rating of 17.5A, a nominal voltage rating of 500V, and a 1.5 mm² nominal conductor cross section, these terminal blocks provide reliable connections for a variety of industrial electrical applications.
• The compact 4.2 mm-wide housing mounts onto standard 35 mm DIN rails, helping maximize available installation space.
• The included Phoenix Contact D-STTB 2,5 end plate (3030459) provides an insulating cover for the open side of a compatible terminal block assembly.
• This listing contains five STTB 1,5 terminal blocks and one matching-compatible end plate, sold together as a single six-piece package.

Product Information

• Manufacturer: Phoenix Contact
• Model Number: STTB 1,5
• Series: CLIPLINE Complete / ST
• MPN: 3031157
• End Plate Model: D-STTB 2,5
• End Plate MPN: 3030459
• Product Type: Double-Level Multi-Conductor Terminal Block
• Quantity Included: 5 Terminal Blocks + 1 End Plate
• Total Components: 6
• Connection Technology: Spring-Cage Connection
• Number of Connections: 4 Per Terminal Block
• Total Conductor Connections: 20 Across 5 Terminal Blocks
• Number of Levels: 2
• Connections Per Level: 2
• Number of Electrical Potentials: 2 Per Terminal Block
• Nominal Voltage: 500 V
• Nominal Current: 17.5 A
• Maximum Load Current: 17.5 A with 1.5 mm² Conductor
• Rated Surge Voltage: 6 kV
• Nominal Conductor Cross Section: 1.5 mm²
• Conductor Cross Section Range: 0.08–1.5 mm²
• Compatible Wire Gauge: 28–16 AWG
• Wire Stripping Length: 10 mm
• Mounting Type: DIN Rail NS 35/7.5 or NS 35/15
• DIN Rail Size: 35 mm
• Terminal Block Width: 4.2 mm
• Terminal Block Height: 67.5 mm
• Terminal Block Depth on NS 35/7.5: 47.5 mm
• Terminal Block Depth on NS 35/15: 55 mm
• End Plate Width: 2.2 mm
• End Plate Height: 67.6 mm
• End Plate Depth: 39.7 mm
• Approximate Combined Width: 23.2 mm (5 Blocks + 1 Plate)
• Terminal Block Color: Gray (RAL 7042)
• End Plate Color: Gray
• Insulating Material: Polyamide (PA)
• Flammability Rating: UL 94 V-0
• Connection Standard: IEC 60947-7-1
• Country of Origin (Terminal Blocks): Germany
• Country of Origin (End Plate): Germany
• Package Contents: 5x Phoenix Contact STTB 1,5 (3031157) Terminal Blocks and 1x Phoenix Contact D-STTB 2,5 (3030459) End Plate