TE Connectivity 1SNA167281R2100 PE 257 is an Entrelec SNA terminal block marking accessory designed for clear identification of compatible industrial terminal block assemblies.
Why Choose the TE Connectivity 1SNA167281R2100 PE 257 Terminal Block Marker?
The TE Connectivity 1SNA167281R2100, also identified as PE 257, is a specialised terminal block marking accessory from the TE Connectivity / Entrelec SNA range. Designed for identification within compatible terminal block assemblies, it provides a practical way to organise and identify electrical connections in control panels, switchgear and industrial automation equipment.
The PE 257 is classified specifically as labelling for terminal blocks, making it an identification component rather than an electrically conductive terminal accessory. Clear terminal marking supports efficient installation, inspection, commissioning and fault finding by helping technicians associate individual connection points with the appropriate circuit or wiring information.
With an approximate net weight of just 1.2 g, the 1SNA167281R2100 is a lightweight component designed for compatible Entrelec terminal block systems. It is supplied in manufacturer packs of 10 and is identified by EAN 3472591672817.
Designed for compatible TE Connectivity / Entrelec SNA terminal systems.
Helps provide clear and organised identification of electrical connections.
Supports easier commissioning, inspection and maintenance of control panels.
Lightweight construction at approximately 1.2 g per marker.
Classified specifically for terminal block labelling.
Supplied in convenient manufacturer packs of 10.
Key Features
TE Connectivity / Entrelec SNA accessory.
PE 257 manufacturer product designation.
Also referenced as PE257-JR4.
Terminal block marker for identification applications.
Designed for compatible SNA screwed terminal block assemblies.
Supports organised circuit and connection identification.
Approximate net weight of 1.2 g.
ETIM classified as labelling for terminal blocks.
Clear Identification for Terminal Block Assemblies
Accurate terminal identification is an important part of organised industrial panel construction. Marking accessories such as the PE 257 help installers and maintenance personnel identify individual connection points without relying solely on cable routing or wiring position, supporting clearer documentation and more efficient servicing.
The 1SNA167281R2100 is designed as part of the Entrelec SNA accessory system for compatible terminal block installations. Its dedicated terminal-labelling function makes it suitable for new panel construction as well as maintenance, refurbishment and replacement work where the specified PE 257 marker is required.
Typical Applications
Industrial terminal block identification.
Electrical control panel labelling.
Switchgear and distribution equipment.
Automation and machine control cabinets.
Wiring and circuit identification.
Maintenance of compatible Entrelec SNA terminal assemblies.
Technical Specifications
Manufacturer
TE Connectivity / Entrelec
Series
SNA Accessories
Model
PE 257
Alternative designation
PE257-JR4
Manufacturer part number
1SNA167281R2100
Product type
Terminal block marker
Product category
Terminal block labelling accessory
Application
Identification of compatible terminal block assemblies
Net weight
approx. 1.2 g
ETIM classification
EC000761, labelling for terminal block
Customs tariff number
39269097
RoHS status
Following EU Directive 2011/65/EU
Pack quantity
10
EAN
3472591672817
Frequently Asked Questions
What is the TE Connectivity 1SNA167281R2100?
The 1SNA167281R2100 is the PE 257 terminal block marker, a TE Connectivity / Entrelec SNA accessory designed for identification within compatible terminal block assemblies.
What is the PE 257 used for?
The PE 257 is used for terminal block labelling and identification, helping installers and maintenance personnel identify connections within compatible industrial electrical assemblies.
Is the PE 257 an electrical terminal block?
No. The PE 257 is a marking and labelling accessory rather than a current-carrying terminal block.
How much does the 1SNA167281R2100 weigh?
The PE 257 has an approximate net weight of 1.2 g per unit.
How is the TE Connectivity PE 257 supplied?
The 1SNA167281R2100 is supplied in a manufacturer pack quantity of 10 terminal block markers.
Trusted for Industrial Terminal Identification
TE Connectivity / Entrelec SNA marking accessories provide purpose-built identification solutions for industrial terminal block systems where organised wiring, clear circuit identification and efficient electrical maintenance are essential.
Manufacturer
TE Connectivity / Entrelec
Series
SNA Accessories
Model
PE 257
Alternative designation
PE257-JR4
Manufacturer part number
1SNA167281R2100
Product type
Terminal block marker
Product category
Terminal block labelling accessory
Application
Identification of compatible terminal block assemblies
Net weight
approx. 1.2 g
ETIM classification
EC000761, labelling for terminal block
Customs tariff number
39269097
RoHS status
Following EU Directive 2011/65/EU
Pack quantity
10
EAN
3472591672817
No documents available for this product.
Delivery
We offer fast UK delivery on all stocked items. Orders placed before 3pm Monday to Friday are eligible for next-day delivery.
Standard delivery: 2–3 working days
Next-day delivery: available on in-stock items when ordered before 3pm
Express options available — contact us for details
Returns
If you need to return an item, please contact our sales team within 30 days of receipt. Items must be returned unused in their original packaging.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...