Standard delivery
£8 ex VAT · free over £200UK parcel delivery is £8 ex VAT, or free on orders over £200 ex VAT.
Heavier items may be charged at a weight-based or pallet rate, shown at checkout.
1sna166757r0400 – po-ds-vl
TE Connectivity / Entrelec PO-DS-VL 1SNA166757R0400 is a blue ESSAILEC open-contact polarity test block socket with screw-clamp connections for base or half-base mounting in electrical testing and measurement systems.
£77.56
Why Choose the TE Connectivity PO-DS-VL 1SNA166757R0400 ESSAILEC Test Block Socket?
The TE Connectivity / Entrelec PO-DS-VL 1SNA166757R0400 is an industrial ESSAILEC test block socket with open contacts designed for polarity circuits in electrical testing, measurement and protection systems. Part of the established ENTRELEC ESSAILEC test block range, it provides a reliable interface for test and measurement connections in switchboards, control panels and electrical installations.
The PO-DS-VL uses a screw-clamp connection system and is intended for base or half-base mounting. Its ESSAILEC configuration enables compatible test plugs and accessories to be connected to the circuit in a controlled and repeatable manner, supporting maintenance, commissioning and electrical testing procedures.
This blue polarity socket features open contacts and is rated for operation at up to 400 V and 8 A. Its industrial construction and modular ESSAILEC format make the PO-DS-VL suitable for electrical installations where dependable access to measurement and test circuits is required.
Key Advantages
- Part of the proven TE Connectivity / Entrelec ESSAILEC test block system.
- Open-contact polarity socket for electrical test and measurement circuits.
- Screw-clamp terminals provide secure conductor connections.
- Suitable for base and half-base mounting.
- Rated for up to 400 V and 8 A.
- Designed for reliable testing, commissioning and maintenance of electrical installations.
Key Features
- TE Connectivity / Entrelec ESSAILEC series.
- PO-DS-VL socket designation.
- Open-contact circuit configuration.
- Designed for polarity circuits.
- Blue identification colour.
- Screw-clamp (VL) conductor connection.
- Base / half-base mounting arrangement.
- Rated voltage of 400 V.
- Rated current of 8 A.
- Designed for use with compatible ESSAILEC test plugs and accessories.
Reliable Test Connections for Electrical Systems
ESSAILEC test blocks provide a structured interface between electrical circuits and test equipment, helping technicians perform commissioning, measurement and maintenance work without relying on improvised connections. The PO-DS-VL is specifically configured as an open-contact polarity socket and provides secure screw-clamp termination for field conductors.
Its base or half-base mounting arrangement makes it suitable for integration into switchboards and electrical control assemblies. Used with compatible ESSAILEC plugs and accessories, the PO-DS-VL provides a dependable connection point for test procedures in industrial power, protection and measurement installations.
Typical Applications
- Electrical test and measurement circuits.
- Switchgear and switchboard assemblies.
- Protection and metering panels.
- Industrial electrical control panels.
- Commissioning and maintenance test systems.
- Power distribution and utility installations.
- Electrical laboratory and testing equipment.
Technical Specifications
Tick the specs you need, then view products that match.
| Terminal Type | Disconnect / Test | |
|---|---|---|
| Product Series | TE Essailec | |
| Connection | Screw clamp | |
| Colour | Blue | |
| Manufacturer | TE Connectivity / Entrelec | |
| Series | ESSAILEC | |
| Model | PO-DS-VL | |
| Manufacturer part number | 1SNA166757R0400 | |
| Product type | Test block socket | |
| Circuit type | Polarity | |
| Contact configuration | Open contacts | |
| Connection technology | Screw clamp (VL) | |
| Mounting type | Base / half-base mounting | |
| Colour | Blue | |
| Rated voltage | 400 V | |
| Rated current | 8 A | |
| Impulse withstand voltage | 4 kV | |
| Pollution degree | 3 | |
| Rigid conductor capacity | 0.2–6 mm² | |
| Flexible conductor capacity | 0.22–4 mm² | |
| Wire stripping length | 9.5 mm | |
| Recommended screwdriver | 4 mm | |
| Recommended tightening torque | 0.5–0.8 Nm | |
| Working temperature range | -10 to +55 °C | |
| Storage temperature range | -25 to +70 °C | |
| Front protection with cover | IP40 | |
| Front protection without cover | IP20 | |
| Pack quantity | 1 |
Frequently Asked Questions
What is the TE Connectivity PO-DS-VL 1SNA166757R0400?
It is an ENTRELEC ESSAILEC test block socket with open contacts, designed for polarity circuits used in electrical testing, measurement and related applications.
What type of connection does the PO-DS-VL use?
The PO-DS-VL uses screw-clamp (VL) connections for secure termination of electrical conductors.
What are the electrical ratings of the PO-DS-VL?
The socket is rated for up to 400 V with a rated current of 8 A.
How is the 1SNA166757R0400 mounted?
The PO-DS-VL is designed for base or half-base mounting within compatible electrical assemblies.
What type of circuit is the PO-DS-VL intended for?
The PO-DS-VL is identified as a polarity-circuit socket with open contacts within the ESSAILEC test block system.
Where is the PO-DS-VL typically used?
It is typically used in switchboards, protection and metering panels, industrial control systems and other installations requiring reliable access to electrical test and measurement circuits.
Trusted Test Connectivity for Industrial Electrical Systems
TE Connectivity / Entrelec ESSAILEC test blocks are engineered to provide dependable and organised test interfaces for industrial electrical, measurement and protection circuits, supporting efficient commissioning, testing and maintenance.
