The Bulgin 3700 is a robust and versatile range of waterproof, multi-pin connector systems designed for use in the most demanding applications. Designed for extreme conditions and environments, the 3700 range has been designed to provide the highest degree of reliability and performance in the harshest environments. With an operating temperature range of -25°C to +85°C, the 3700 range can withstand exposure to salt spray, water ingress and extreme vibration making them ideal for extreme environmental applications such as in-vehicle, marine, or industrial applications. Manufactured with a zinc die-cast housing and gold-plated brass contacts, the 3700 connectors are highly resistant to corrosion, making them the perfect solution for long-term use in harsh environments. Key features of the 3700 include mating and unmating without tools, an integrated keying system which prevents incorrect mating, an audible ‘clicking’ sound when mated and an integrated backshell for added protection.