TE Connectivity / ENTRELEC 1SNA400271R1500 D4/8.D2.P.SFL is a grey 8 mm-wide double-level screw-clamp fuse DIN rail terminal block with three circuits, six positions, lever disconnection and 6.3 A 300 V ratings for protected industrial signal wiring.
Why Choose the TE Connectivity D4/8.D2.P.SFL Double-Level Fuse Terminal Block?
The TE Connectivity / ENTRELEC D4/8.D2.P.SFL, manufacturer part number 1SNA400271R1500, is a compact double-level fuse DIN rail terminal block designed for protected signal and control circuits in industrial automation, machinery and electrical panels. Part of the established ENTRELEC ADO System range, it combines fuse functionality, lever disconnection and screw-terminal conductor termination within an 8 mm-wide modular terminal.
The D4/8.D2.P.SFL provides two levels, three circuits and six connection positions, allowing multiple wiring functions to be accommodated within a compact DIN rail footprint. Its lever-operated disconnect mechanism provides convenient circuit isolation for testing, commissioning and maintenance, while the integrated fuse function enables individual signal circuits to be protected within the terminal assembly.
With a rated current of 6.3 A, rated voltage of 300 V and IEC impulse withstand voltage of 6,000 V, the 1SNA400271R1500 is engineered for dependable industrial signal wiring. It accommodates flexible conductors from 0.5–4 mm² and rigid stranded conductors from 0.5–6 mm², while its polyamide 6.6 housing, IP20 protection and -55–110 °C operating temperature range support demanding control-panel environments.
Key Advantages
Combines fuse protection and terminal connection within a compact DIN rail component.
Double-level construction increases wiring density in industrial control cabinets.
Provides three circuits and six connection positions.
6.3 A rated current under IEC, UL and CSA specifications.
300 V rated voltage for industrial signal and control circuits.
Lever-operated disconnect mechanism simplifies circuit isolation and maintenance.
Compact 8 mm width helps conserve valuable DIN rail space.
Compatible with standard TH 35-7.5 and TH 35-15 DIN rails.
Key Features
TE Connectivity / ENTRELEC D4/8.D2.P.SFL fuse terminal block.
Fuse block function for protected signal circuits.
Two-level configuration.
Three circuits.
Six connection positions.
Five poles.
6.3 A IEC, UL and CSA rated current.
300 V IEC, UL and CSA voltage rating.
6,000 V IEC impulse withstand voltage.
Lever-operated disconnect for convenient circuit isolation.
Screw-terminal connection technology.
4 mm² nominal wire size.
IP20 protection.
Grey polyamide 6.6 housing with UL 94 V-0 flammability classification.
Compact Fuse Protection for High-Density Signal Wiring
Fuse terminal blocks combine conductor termination and circuit protection within the same DIN rail assembly, helping reduce the need for separate panel-mounted fuse holders. The D4/8.D2.P.SFL extends this concept with a double-level arrangement incorporating three circuits and six connection positions within an 8 mm-wide footprint, making efficient use of space in densely populated industrial cabinets.
Its lever-operated disconnect mechanism allows the relevant circuit to be conveniently isolated during commissioning, measurement, maintenance or fault finding. Combined with screw-terminal conductor connections, IP20 protection and a wide operating temperature range, the D4/8.D2.P.SFL provides a practical solution for protected signal circuits in machinery, process control and industrial automation systems.
Typical Applications
Fused industrial signal circuits.
PLC input and output circuit protection.
Industrial automation and control panels.
Machine building and OEM electrical systems.
Instrumentation and process control circuits.
Factory automation and production machinery.
High-density protected control wiring.
Circuits requiring convenient fuse isolation and maintenance access.
Technical Specifications
Manufacturer
TE Connectivity / ENTRELEC
Series
ENTRELEC ADO System
Model
D4/8.D2.P.SFL
Manufacturer part number
1SNA400271R1500
Product type
Screw-clamp fuse DIN rail terminal block
Block function
Fuse
Circuit application
Signal
Number of levels
2
Number of circuits
3
Number of positions
6
Number of poles
5
Disconnect type
Lever
Connection technology
Screw terminal
Nominal wire size
4 mm²
IEC rated current
6.3 A
UL rated current
6.3 A
CSA rated current
6.3 A
IEC rated voltage
300 V
UL/CSA operating voltage
300 V
IEC impulse withstand voltage
6,000 V
Flexible conductor range
0.5–4 mm²
Rigid stranded conductor range
0.5–6 mm²
Wire stripping length
9.5 mm
Tightening torque
0.5 N·m
Recommended tool size
4 mm
Gauge type
A4
Protection rating
IP20
Mounting type
TH 35-7.5 / TH 35-15 DIN rail
Housing material
Polyamide 6.6
Flammability rating
UL 94 V-0
Operating temperature
-55–110 °C
Installation temperature
-5–40 °C
Colour
Grey
Width / spacing
8 mm
Height
99.1 mm
Depth
64.5 mm
Weight
approx. 35 g
Pack quantity
25
EAN
3472594002710
Frequently Asked Questions
What is the TE Connectivity D4/8.D2.P.SFL 1SNA400271R1500 used for?
The D4/8.D2.P.SFL is a double-level fuse DIN rail terminal block designed for protected signal and control circuits in industrial automation, machinery and electrical control panels.
What are the electrical ratings of the D4/8.D2.P.SFL?
The 1SNA400271R1500 has a rated current of 6.3 A and a rated voltage of 300 V under IEC, UL and CSA specifications, together with an IEC impulse withstand voltage of 6,000 V.
How many levels and connection positions does the 1SNA400271R1500 have?
The D4/8.D2.P.SFL has two levels, three circuits and six connection positions, providing multiple wiring functions within a compact 8 mm-wide terminal block.
What conductor sizes can the D4/8.D2.P.SFL accept?
The terminal accommodates flexible conductors from 0.5–4 mm² and rigid stranded conductors from 0.5–6 mm², with a nominal conductor size of 4 mm².
What type of disconnect mechanism does the D4/8.D2.P.SFL use?
The 1SNA400271R1500 incorporates a lever-operated disconnect mechanism, providing convenient circuit isolation for testing, commissioning, maintenance and fault-finding operations.
Trusted Industrial Connection Technology
TE Connectivity / ENTRELEC fuse terminal blocks provide panel builders, machine builders and automation engineers with compact circuit protection and dependable conductor termination, with the D4/8.D2.P.SFL combining double-level construction, lever disconnection and screw-terminal wiring for high-density industrial signal circuits.
Manufacturer
TE Connectivity / ENTRELEC
Series
ENTRELEC ADO System
Model
D4/8.D2.P.SFL
Manufacturer part number
1SNA400271R1500
Product type
Screw-clamp fuse DIN rail terminal block
Block function
Fuse
Circuit application
Signal
Number of levels
2
Number of circuits
3
Number of positions
6
Number of poles
5
Disconnect type
Lever
Connection technology
Screw terminal
Nominal wire size
4 mm²
IEC rated current
6.3 A
UL rated current
6.3 A
CSA rated current
6.3 A
IEC rated voltage
300 V
UL/CSA operating voltage
300 V
IEC impulse withstand voltage
6,000 V
Flexible conductor range
0.5–4 mm²
Rigid stranded conductor range
0.5–6 mm²
Wire stripping length
9.5 mm
Tightening torque
0.5 N·m
Recommended tool size
4 mm
Gauge type
A4
Protection rating
IP20
Mounting type
TH 35-7.5 / TH 35-15 DIN rail
Housing material
Polyamide 6.6
Flammability rating
UL 94 V-0
Operating temperature
-55–110 °C
Installation temperature
-5–40 °C
Colour
Grey
Width / spacing
8 mm
Height
99.1 mm
Depth
64.5 mm
Weight
approx. 35 g
Pack quantity
25
EAN
3472594002710
No documents available for this product.
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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...