Keri Systems KPS-525 User Manual

KPS-525 Power Supply

Installation Guide

Section 1 – Wiring and Layout Diagram
Section 2 – Specifications and Cable Requirements
Section 3 – Keri Contact Information

NOTE: This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this
device may not cause harmful interference, and (2) this device must accept any interference received, including
interference that may cause undesired operation.

1.0 Wiring and Layout Diagram

1.1 KPS-525

2.0 Specifications

2.1 Dimensions

•PCB

- 2.50” inches tall by 3.85” inches wide (including heat sink) by 1.6” inches deep (including heat sink, but not
including wiring connectors)

- 6.4 cm by 9.8 cm by 4.1 cm

•Enclosure

- 8.00 inches tall by 7.00 inches wide by 2.75 inches deep

- 20.32 cm by 17.78 cm by 6.98 cm

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KPS-525 Power Supply

Installation Guide

2.2 Power Requirements

• 24 VAC 50 VA Class 2 Transformer

2.3 Output

• 13.8 VDC @ 2.5 A (typical)

• 13.8 VDC @ .50 A (battery float charge)

• 14.2 VDC @ 2.0 A (DC output to NXT)

2.4 Operating Conditions

• 32°F to 150°F (0°C to 60°C) – 0% to 90% Relative Humidity, non-condensing

2.5 Cable Requirements

Table 1: Cable Requirements

Connection

AC power in 10 feet 2 N Y N 18 8442

ground shortest

DC power out 10 feet 2 N Y N 18 8442

a. Heavier gauges then those listed are always acceptable.
b. Use the shortest possible path from earth ground point to PCB. Connect the earth ground only to the

designated pin on the terminal block. This is important as all transient protection for the unit is made through
this earth ground connection. For unit protection, the earth ground connection should always be made first.

Total Run

Length

b

path

# of

Conductors

1 N N n/a 18 no specific

Shielded Stranded

Twisted

-Pair

AWG

3.0 Contact Keri Systems

Keri USA Keri UK, Ireland, Europe

2305 Bering Drive

San Jose, CA 95131

Park Farm Industrial Estate

Unit 17

Ermine Street

Buntingford

Herts SG9 9AZ UK

a

Equivalent

requirement

Belden

T elephone: [phone]

[phone]

Fax: [phone] Fax:+ 44 (0) 1763 274 106

Web: www.kerisys.com Web:www.kerisystems.co.uk

E-mail: [e-mail]

[e-mail]

End of document.

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Telephone: + 44 (0) 870 444 7234

E-mail:[e-mail]
[e-mail]