Protector 21A – 3 Pole Over Voltage Gas Discharge Surge Protector
The Protector 21A is a high-performance 3 pole over-voltage gas discharge surge protector designed to safeguard telecom lines and critical infrastructure from transient voltage surges. Featuring an integral fail-safe facility and a lower spark-over voltage, it delivers enhanced protection compared to previous models.
Engineered as a direct replacement for the Protector 14A, the Protector 21A provides improved response characteristics while maintaining compatibility with existing installation formats. It is designed to fit securely into Protector Mounting 5B, ensuring straightforward integration into established protection systems.
Ideal for telecom networks, exchange equipment and line protection applications where reliable over-voltage defence is essential.
Key Features:
- 3 pole over-voltage gas discharge surge protector
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Lower spark-over voltage for enhanced protection performance
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Integral fail-safe facility for added system security
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Direct replacement for Protector 14A
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Compatible with Protector Mounting 5B
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Designed for telecom line and infrastructure protection
Technical Specifications:
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Product Name: Protector 21A
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Type: Gas Discharge Tube (GDT) Surge Protector
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Poles: 3 Pole
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Protection Type: Over-voltage
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Spark-Over Voltage: Lower than Protector 14A
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Fail-Safe: Integral fail-safe facility included
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Mounting Compatibility: Protector Mounting 5B
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Supersedes: Protector 14A
