UL 1598 Branch Circuit Temperature Probe

The LS-B73 UL 1598 Branch Circuit Temperature Probe employs a standardized circuit board and copper foil structure design, specifically designed for temperature detection of branch wires in surface-mount lighting fixtures. By placing temperature sensing elements at specific locations, this detector accurately captures temperature changes in the branch wires during luminaire operation, providing data support for assessing whether the luminaire’s temperature rise meets safety requirements. Its structural design is compatible with standard testing scenarios, allowing for stable installation in test circuits, ensuring accurate and consistent temperature detection, and meeting the specifications for branch wire temperature monitoring in luminaire temperature rise testing.

Standards:
UL 1598:2024  Standard for Safety for Luminaires

Specifications:
Material: G10 epoxy fiberglass circuit board with 2 oz copper foil
Copper foil: Φ25.4mm inner diameter, Φ63.5mm outer diameter
Mounting groove: 4.7mm wide × 14.3mm long
Thermocouple placement: On the Φ38mm circle of the copper foil

UL 1598 Figure 19.9.1