LCP1.PGMX.B

1. Overview

DATA-QUALITY NOTE: The part number GDL31-GP could not be verified in any official Pepperl+Fuchs catalog, datasheet, distributor database, or third-party industrial source after exhaustive web research (14 searches, multiple fetches of pepperl-fuchs.com and authorized distributor pages). The two findings in the pre-research set are both pages from The Button Index catalog itself — not independent sources. No independent retailer, distributor (RS Components, Kempston Controls, ELTRA TRADE, Heating & Process), or official Pepperl+Fuchs web page lists or references a product bearing the designation GDL31-GP or GDL31. The part number format is inconsistent with Pepperl+Fuchs naming conventions for their GRP control station lines (LCP, GL**, GR.CS, LRP).

Pepperl+Fuchs SE (Mannheim, Germany) is a globally recognized specialist in industrial automation and explosion protection, founded in 1945. While primarily known for proximity sensors and IS/Ex interfaces, the company operates a substantial hazardous-area control hardware division. Their genuine GRP ATEX push button product families are the LCP series (compact single-enclosure control units), the GL/GLCS series (multi-operator control stations), and the GR.CS series (modular GR-enclosure-based control stations) — all certified Ex de/Ex e/Ex tb for Zones 1, 2, 21, and 22.

2. User Sentiment

No user sentiment, forum discussion, or review data was found for GDL31-GP — which is consistent with the product not being verifiable in the market. For the real Pepperl+Fuchs LCP and GLCS GRP control station lines, no negative user reports were surfaced either. Industry documentation emphasizes the anti-static carbon-loaded GRP material as a key durability differentiator, and the modular operator-fitting approach (pushbuttons, LEDs, e-stops, rotary switches) is described positively for flexibility. No comparisons with competing brands such as Technor, Atex Delvalle, or Ex-Tech Signalling were found in user-generated content.

3. Real-World Applications

Pepperl+Fuchs GRP ATEX control stations (LCP/GL/GR.CS families) are deployed across oil and gas upstream/downstream, petrochemical and chemical plants, offshore platforms, marine installations, food and pharmaceutical processing, and mining — wherever Zone 1/2 (gas) or Zone 21/22 (dust) classification applies. The GRP enclosure material is specifically favored on offshore platforms where weight savings and salt-spray corrosion resistance are priorities versus cast aluminum or stainless steel alternatives. Single-operator green pushbutton configurations (equivalent to a GDL31-GP if real) are most commonly used as motor start or equipment run initiation points.

4. Technical Specifications

The following specs are drawn from confirmed Pepperl+Fuchs LCP1.PGMX.B (closest verified real analog to GDL31-GP):

• Type: Control Unit, Ex e Increased Safety / Ex tb
• Enclosure material: Carbon-loaded, anti-static glass fiber reinforced polyester (GRP)
• Operator: Single green pushbutton, labeled 'I' (start function)
• Contact configuration: 1NO (Normally Open)
• Operating voltage: 250 V AC maximum
• Operating current: 16 A maximum
• Terminal capacity: 2.5 mm²
• IP rating: IP66
• Ambient temperature: -40°C to +55°C (T4); -40°C to +40°C (T6)
• ATEX classification: Ex II 2 GD Ex de IIC T6, T5, T4 Gb; Ex tb IIIC T80°C, T95°C, T130°C Db
• Certificate: SIRA 13ATEX3059X / IECEx SIR 13.0021
• Cable entry: M20 polyamide cable gland (standard)
• Dimensions (LCP1): 110 mm × 110 mm; weight ~0.9 kg

Note: The GDL31-GP catalog entry attributes 22mm panel cutout, Zone 1/2, 1NO, IIC/T6, IP66, GRP — these are plausible for an ATEX GRP pushbutton but could not be verified against official Pepperl+Fuchs documentation.

5. Ordering & Compatibility

Verified Pepperl+Fuchs GRP green push button products available from authorized distributors include LCP1.PGMX.B (single green pushbutton unit) and combination configurations such as LCP2.PGMX.PRMX.B (green + red), LCP3.PGMX.PRMX.ERMX.B (green + red + e-stop), and the larger GL-series stations (GL1101.CS-Y272031 etc.) for multi-operator panels. All are price-on-request from distributors including Kempston Controls, Heating & Process, and ELTRA TRADE, with typical lead times of 3–6 weeks. Compatible accessories include M20 cable glands and stopping plugs, contact blocks (snap or screw fit), and label plates. The catalog entry for GDL31-GP lists a $9.97–$57.87 price range but this cannot be verified against any distributor listing and appears synthetic.

6. Known Issues

Primary issue: Part number GDL31-GP is unverifiable. After 14 web searches and attempts to fetch pepperl-fuchs.com product pages, authorized distributor catalogs (Kempston Controls, ELTRA TRADE, RS Components, Heating & Process), and industrial equipment aggregators, no listing for GDL31-GP was found. The catalog entry likely contains an error in the part number, a non-standard ordering code, or a fictitious designation. Engineers specifying this part number should contact Pepperl+Fuchs directly or substitute with the verified LCP1.PGMX.B (GRP, green, 1NO, ATEX Zone 1/2) to ensure procurement accuracy and compliance documentation. No material or field reliability issues were reported for the real Pepperl+Fuchs GRP control station product lines.