Lifesafety Power SD4-BOXED Dual Buss Harness Terminal Block

Overview

The SD4-BOXED is a pre-assembled dual buss harness assembly designed for fire alarm and security control system installations. This 18-inch harness terminates to a 6-position 5.00mm pitch terminal block, eliminating field termination time and reducing wiring errors during panel integration. The AWG14 gauge copper conductors carry adequate current for typical supervising circuit and sounder supervision loads in commercial and industrial control panels.

Compatibility

This harness integrates with Mercury/Lenel board configurations that accept 5.00mm pitch terminal blocks. Verify your control panel documentation to confirm terminal block spacing and pin assignment before ordering. The dual buss topology supports standard supervision and notification circuits common in addressable fire alarm and integrated security systems.

Installation Notes

The 18-inch length accommodates typical panel depths and allows mid-panel routing without slack management concerns. Insertion into the 5.00mm pitch terminal block requires aligned pin pressure—do not force. Confirm buss polarity (red/black convention) matches your control panel schematic before energizing. AWG14 rating supports up to approximately 15A per conductor at standard ambient temperatures; verify load calculations against your system design before deployment.

What's in the Box

• 1x SD4-BOXED dual buss harness assembly, 18" length
• 1x 6-position 5.00mm pitch terminal block (black)