KBC Networks ESULS4-L1-B PoE Ports 1 Non-PoE Ports 120W Budget Industrial Unmanaged PoE Switch

The KBC Networks ESULS4-L1-B is a rugged industrial-grade unmanaged Ethernet switch equipped with four PoE-enabled ports and one standard non‑PoE port, delivering a total PoE budget of 120 W. Housed in a compact DIN-rail or wall-mountable IP-rated enclosure, this switch is designed to withstand harsh environments—featuring wide operating temperature range (-40 °C to 75 °C), surge protection, and EMI resistance. Its plug-and-play simplicity requires no configuration, offering reliable power and data delivery to networked devices like IP cameras, wireless access points, and industrial sensors. The switch supports IEEE 802.3af/at standards, auto-detects PDs, and ensures power prioritization and over-current protection. Its screw-terminal power input accommodates 48-57 V DC sources for uninterrupted operation. Ideal for critical infrastructure, beyond commercial and industrial settings, this switch guarantees consistent performance even in extreme conditions.