Simplex (5120-9174) TrueCom® Building Communications Systems Power Supply

The Simplex 5120-9174 is a switching power supply purpose-built for the Simplex TrueCom Building Communications System family. Output voltage is fully regulated at 24 VDC ±2% across the rated input voltage range and full output load. The 5120-9174 provides three separate 2 A output circuits, each protected by auto-resetting fuses, summing to a 6 A total output capacity. The primary side is protected by a 3 A slo-blo fuse. All outputs are floating with respect to ground. If output load at power-up exceeds 6 A, the supply current-limits until the overload clears; an overvoltage clamp holds output below approximately 28 VDC if an internal failure occurs. Outputs may be paralleled but must not be series connected. Dimensions: 8.9″ × 5.6″ × 2.2″; weight 5 lbs. Catalog number 688-735.

Key Features

• Fully regulated 24 VDC output, ±2% voltage regulation
• 6 A total output capacity; three independent 2 A outputs with auto-resetting fuses
• 3 A slo-blo primary fuse protection
• Floating outputs (not ground-referenced) for loop isolation
• Current limiting on power-up overload; overvoltage clamp at approximately 28 VDC
• Outputs may be paralleled (not series) for higher current loads
• Powers 5110, 5120, and 5130 TrueCom Building Communications Systems
• Powers 6333-9018 digital clocks

Compatible Panels

Simplex 5110, 5120, 5130 TrueCom Building Communications Systems

Life Safety Consultants has been supporting Simplex TrueCom and fire alarm power supply needs since 2002. For the 5120-9174 or any TrueCom replacement part, call 1-888-557-0558 or email sales@lifesafetycom.com.