Stahl 8571/21-407-S-51 Terminal Module

Description

Stahl 8571/21-407-S-51 Terminal Module

Product Dimensions：

The R. STAHL 8571/21-407-S-51 is a high-performance, explosion-protected wall-mounting socket from the SolConeX series. It is specifically designed for use in hazardous areas where reliability and safety are paramount.

Below is the detailed product information in English.

1. Product Overview

The 8571/21 series consists of 32 A sockets designed for Zone 1, 2, 21, and 22. This specific variant features a 4-pole (3P + PE) configuration and is color-coded black to indicate a voltage range of 480 to 500 V AC. It features an integrated rotary switch with a clear “handle position” indicator for load-break switching.

2. Technical Specifications

3. Product Advantages

• Safety Interlock: The integrated switch ensures that the plug can only be inserted or withdrawn when the power is disconnected (in the “Off” position), preventing electric arcs.

• Self-Cleaning Contacts: The socket uses high-quality, self-cleaning lamellar contacts to ensure low transition resistance and prevent overheating.

• Extreme Durability: Constructed from glass fiber reinforced polyamide, it is highly resistant to impact, chemicals, and corrosion.

• Clear Status Indication: Large, visible handle positions (ON/OFF) provide immediate visual confirmation of the power status.

• Maintenance Friendly: Designed with ample wiring space and easily accessible terminals for quick installation.

4. Product Applications

This device is engineered for harsh industrial environments, particularly:

• Oil & Gas: Offshore platforms, refineries, and fuel depots.

• Chemical Industry: Processing plants where flammable gases or dust may be present.

• Pharmaceuticals: Clean rooms or production areas requiring frequent wash-downs (IP66).

• Heavy Industry: Marine environments and mining sites.

5. Important Precautions

• Compatibility: Only use with compatible R. STAHL 8571/12 series plugs to ensure the explosion protection and interlocking mechanism function correctly.

• Installation: Must be installed by qualified personnel according to IEC/EN 60079-14 standards for hazardous areas.

• Environmental Limits: Ensure the ambient temperature does not exceed the specified rating to maintain the T-class (Temperature Class) integrity.

• Regular Inspection: Check the sealing gaskets and the mechanical interlock periodically for wear or damage to maintain the IP66 protection.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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