
Siemens 3WL1208-4CB31-4GA4-Z
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The 3WL1208-4CB31-4GA4-Z is a high-performance fixed-mounted circuit breaker designed for critical electrical applications. With a robust 3-pole configuration, this circuit breaker is sized II and complies with IEC standards for a current rating of 800A suitable for voltage levels up to 690V.
Engineered for AC 50/60Hz applications, it boasts an impressive short-circuit withstand strength of Icu=100kA at 500V. The rear connection setup allows for vertical installation, making it ideal for space-constrained environments.
This circuit breaker includes an overcurrent release (ETU 25 LSI) with adjustable protection settings from 0.4-1. Additionally, the operating mechanism can be activated manually or motorized, with a spring charging motor compatible with AC 50/60 Hz and DC voltages in specific ranges.
Equipped with a first auxiliary release (Shunt release 'F', F1), this model features a 100% on-load factor, ensuring reliable performance under demanding conditions. The product provides 4 normally open (NO) and 4 normally closed (NC) contacts for versatile circuit management.
Manufactured in the Czech Republic by Siemens, the 3WL1208-4CB31-4GA4-Z is the ideal choice for professionals seeking reliability and quality in circuit protection. Note that this model is designated for phase-out by 2025.