Provide dependable low-voltage power for demanding signaling equipment with the Edwards Signaling 88-50 Heavy Duty Power Transformer.

Designed for large commercial and industrial signaling installations, the 88-50 accepts 120VAC input power and provides either 24VAC at 50VA or 12VAC at 25VA, depending on the required secondary connection.

Its rugged enclosed construction, primary pigtail leads, screw-terminal secondary connections, and surface-mount housing make it an excellent choice for commercial signaling, control, and low-voltage equipment applications.

Key Features

• Genuine Edwards Signaling

• Model: 88-50

• Heavy-duty AC power transformer

• 120VAC primary input

• 50/60Hz

• 24VAC secondary at 50VA

• 12VAC secondary at 25VA

• Designed for heavy-duty industrial and commercial signaling

• Enclosed electrical connections

• Primary pigtail leads

• Screw-terminal secondary connections

• Housing includes holes for surface mounting

• Heavy-duty commercial construction

• UL Listed

• Suitable for large signaling installations

Dual Secondary Output

The Edwards 88-50 provides two low-voltage output configurations:

24VAC

Output Voltage: 24VAC
Power Rating: 50VA

12VAC

Output Voltage: 12VAC
Power Rating: 25VA

The correct secondary connection must be selected based on the voltage and VA requirements of the connected equipment.

120VAC Primary Input

Primary Voltage: 120VAC
Frequency: 50/60Hz

The transformer steps standard line voltage down to the lower AC voltage required by compatible signaling and control equipment.

Heavy-Duty Signaling Applications

Edwards designed the 88 Series to provide low-voltage power for larger signaling installations.

Common applications may include compatible:

• Bells

• Buzzers

• Chimes

• Signaling equipment

• Annunciators

• Control devices

• Low-voltage relay circuits

• Industrial signaling systems

• Commercial notification equipment

Always verify the voltage, current, and VA requirements of the equipment being powered.

Enclosed Connections

The 88-50 features enclosed electrical connections, helping protect wiring connections within the transformer assembly.

Connection features include:

• Primary pigtail leads

• Secondary screw terminals

• Enclosed connection area

Surface-Mount Housing

Mounting holes are provided directly in the transformer housing for convenient surface-mounted installation.

This makes the 88-50 suitable for mounting to compatible electrical panels, cabinets, backboards, and equipment surfaces where permitted.

UL Listed

The Edwards factory catalog identifies the 88 Series transformer as UL Listed.

Installation must still comply with applicable electrical codes and the requirements of the equipment being powered.

Approximate Dimensions

Edwards publishes the 88-50 at approximately:

Dimension A: 5-1/2"
Dimension B: 4-3/8"

Approximate net weight:

1.94 lb

Verify available installation space before ordering.

Product Specifications

Brand: Edwards Signaling
Series: 88 Series
Model: 88-50
Product Type: Heavy-Duty AC Power Transformer
Primary Voltage: 120VAC
Frequency: 50/60Hz
Secondary Output 1: 24VAC
Power at 24VAC: 50VA
Secondary Output 2: 12VAC
Power at 12VAC: 25VA
Primary Connection: Pigtail Leads
Secondary Connection: Screw Terminals
Mounting: Surface Mount
Connections: Enclosed
Approx. Dimensions: 5-1/2" x 4-3/8"
Approx. Net Weight: 1.94 lb
Listing: UL Listed
Application: Industrial & Commercial Signaling

What's Included

• 1 Edwards Signaling 88-50 Heavy Duty Transformer

Not Included

• Electrical enclosure

• Field wiring

• Signal devices

• Control relays

• Disconnect

• Additional mounting hardware unless supplied by manufacturer

Important Ordering Information

Before ordering, verify:

• 120VAC primary power is available

• Connected device requires 12VAC or 24VAC

• Required VA load does not exceed:

  • 50VA at 24VAC

  • 25VA at 12VAC

• Surface-mount installation is appropriate

• All connected equipment is compatible with an AC output

Important

The 88-50 provides AC output, not DC.

Do not use it as a direct replacement for a 12VDC or 24VDC power supply unless the connected equipment includes the appropriate rectification and is specifically designed for that arrangement.