PMA® FLEXIBLE PROTECTION SYSTEM TRUST AND SYSTEM SUPPORTS

The PMA TRUST™ modular support system is a lightweight, compact solution with high impact resistance, offering total flexibility in terms of installation complying with all kinds of installation requirement.

PMA TRUST™ MODULAR SUPPORT SYSTEM

The modular support system offers total flexibility in terms of installation complying with all kinds of installation requirements. Each element can host different combinations of both conduits and cables, in various and different sizes, so that cable routing is made easy regardless of its complexity.

KEY FEATURES AND BENEFITS

<p>ABB's PMA TRUST modular support system is a lightweight and compact solution for routing and securing conduits and cables in rolling stock and other demanding applications, offering total installation flexibility with compatibility across all PMAFLEX and PMA Smart Line conduit types</p>

Easy installation

<p>Each support element is secured with only two M6 screws compatible with both Allen and hexagonal-head screws, enabling installation with one hand; asymmetrical pins and clips allow pre-fixation to the conduit before final assembly onto the vehicle</p>

Lightweight

<p>High-grade specially formulated polyamide 6 construction reduces external dimensions to the minimum and delivers a lightweight compact footprint, minimising the space between adjacent conduits in tight rolling stock cable runs</p>

Flexible

<p>Modular system accepts 1 to 4 conduits or cables of various sizes per element; BGPMR reducers adapt the holder to smaller conduit sizes and BGPMK cable clamping adapters in soft material combine with reducers for mixed conduit and cable installations</p>

Vibration-resistant

<p>Single-rib fixation allows conduit rotation within the holder to prevent torsion stresses in moving systems; the BGPMB moveable insert provides 360° movement with up to 9° deflection for dynamic applications</p>

Durable

<p>High impact resistance and very good UV resistance and weathering characteristics; temperature rated from -40°C to +105°C and short-term to +160°C for reliable performance across all rail environments</p>

Reduce downtime

<p>Multiple conduits and cables in various sizes can be pre-assembled into a harness and then fixed in position with only two screws, significantly reducing the time required for complex parallel cable installations</p>

Comprehensive

<p>Complete system includes BGPM multiple holders, BGPMR reducers, BGPMK cable clamping adapters, BGPMB moveable inserts and BGPMF filler caps, each compatible with PMAFLEX Pro, PMAFLEX Multilayer, PMAFLEX and PMA Smart Line conduits</p>

Environmentally responsible

<p>Halogen-free and cadmium-free construction with full RoHS and REACH compliance across the complete TRUST accessory range</p>

Compliant

<p>Certifications include EN 45545-2 HL3 per R22 and R23 for BGPM and BGPMR, NFPA 130, UL 94 V0, UN Regulation No. 118, CE and UK CA marking, RoHS and REACH compliant</p>

   

INDUSTRIES WE SUPPORT

From residential construction to commercial and industrial projects, our products support professionals across diverse industries.

Rail industry, OEM, Automation and robotics

CHALLENGES WE SOLVE

Our products are designed to help professionals solve installation, safety and performance challenges in demanding applications.

Cost reduction, High vibration environments, Continuous operation, Weight limitations, Space constraints, Sustainability

PMA AT INNOTRANS - SEPTEMBER 22-25, 2026

Every railway project is unique. From design and engineering to operation and long-term maintenance, PMA helps you build reliable railway applications that perform throughout their entire lifecycle. Meet our experts at InnoTrans and discover practical solutions for your next projects.

ABB ECO SOLUTIONS™ PRODUCTS

<p>Our ABB EcoSolutions™ product portfolio helps customers and partners make more sustainable decisions. Each product’s circularity value and environmental impact are fully transparent. We are continuously partnering across the value chain to innovate and expand our EcoSolutions portfolio.</p>

   

OUR ELECTRICAL SOLUTIONS IN ACTION: VIDEOS

OUR ELECTRICAL SOLUTIONS AT WORK: CASE STUDIES AND WHITE PAPERS

Swiss Federal Railways SBB rely on PMA TRUST™

Learn how Swiss Federal Railways used PMA TRUST to repair inter-carriage cable connections on 100 train sets without disconnecting existing cable looms

PMA TRUST™ passes the test with flying colours at Bernmobil

See how PMA TRUST™ performed after two years of continuous service on urban trams operating 365 days a year for Bernmobil in Bern, Switzerland

Why Alstom Spain is counting on PMA TRUST™

Find out how Alstom Spain secured conduits and cables of different sizes on the roof transitions of Citadis trams built for Frankfurt using PMA TRUST™

20 years of cable protection excellence with Stadler Rail

Discover why Stadler Rail has relied on PMA TRUST™ for 20 years to protect cables on bogies, couplings and gangways across trams and rapid transit vehicles built for global markets

Putting PMA TRUST™ to the test: Bernmobil trials a new modular support system

Find out how Bernmobil identified torsional stress as the root cause of conduit cracking on its trams and began trialling PMA TRUST™ as a flexible alternative to prevent failures before they occur

PMA: SWISS-ENGINEERED CABLE PROTECTION TRUSTED WORLDWIDE SINCE 1975

Founded in Switzerland in 1975, PMA delivers premium cable protection systems trusted worldwide. With over 6,500 products, PMA safeguards electrical wiring in transportation, industrial automation, and commercial installations, combining Swiss engineering excellence with ABB’s global innovation.