SPTH 1.5 Push-in PCB Terminal Blocks

Introduction

Phoenix Contact’s SPTH 1.5 series is a PCB-mounted terminal block family built around push-in connection technology. The series is technically notable for combining compact board space requirements with conductor support up to 2.5 mm², while offering identical pinning for push-in and screw-connection variants. This allows connection technology to be changed without adapting the PCB layout or device housing.

What it does

SPTH 1.5 terminal blocks provide a direct conductor connection interface on a printed circuit board. Push-in connections support rigid, flexible, and ferrule-terminated conductors with capacities up to 2.5 mm².

The series is specified for 24 A current and 400 V nominal voltage. Its 1.5 mm pitch and stated PCB space requirement of 15 mm × 9.8 mm support compact PCB connection layouts.

Integrated touch connections accept standard voltage test probes up to 2 mm in diameter, providing a defined access point for electrical testing. The TWIN design and identical pinning across push-in and screw versions are intended to support a common board layout where either connection style is required.

Applications

• Industrial control equipment with PCB-mounted field wiring connections
• Building-automation devices requiring compact terminal interfaces
• Motor-drive electronics using connections rated up to 24 A and 400 V
• PCB designs that may need either push-in or screw connection variants without layout changes
• Equipment requiring accessible test points for voltage probes up to 2 mm in diameter

Design considerations

The terminal blocks are intended for PCB mounting and use a 1.5 mm pitch, with a quoted PCB space requirement of 15 mm × 9.8 mm. Board designers can use the identical pinning of the push-in and screw-connection options to retain a common PCB footprint and device housing arrangement.

Conductor selection should account for the supported 2.5 mm² maximum capacity for rigid, flexible, and ferrule-terminated conductors. The 24 A and 400 V nominal ratings, along with the specified 0° connection direction and 90° operating direction, should also be considered in the wider electrical and mechanical design.

Availability and further information

The source/distributor link on this page provides further information on the Phoenix Contact SPTH 1.5 Push-in PCB Terminal Blocks. Refer to the available datasheet links on the page for detailed technical, dimensional, and installation information.