Dwyer GFD User manual

Brand: Dwyer

Model: GFD

Type: User manual

This manual is also suitable for

Model GFD

SPECIFICATIONS

Nominal Voltage: 208-600 VAC

±10%, Phase-to-Phase, 50/60 Hz.

Max Continuous Voltage: 660

VAC, Phase-to-Phase.

Wiring Error Protection: Yes.

Detection Threshold: 11.7 k Ω

±20% @ 50 Hz; 9.3 k Ω ±20% @

60 Hz; Single Phase-to-Ground.

Detector Induced Fault

Current: 50 Hz: 7.5 mA @ 600

VAC (1 Phase-to-Ground shorted);

60 Hz: 9 mA @ 600 VAC (1

Phase-to-Ground shorted).

Indicators: Normal: (3) Green

LEDs, 2 Flashes/sec; Fault: (3)

Red LEDs, 2 Flashes/sec.

Power Required: 50 Hz: 2.5 VA

@ 600 VAC; 60 Hz: 3 VA @ 600

VAC.

Temperature Rating: Operate:

32° to 131°F (0° to + 55°C).

Enclosure: 94V-0 Flame

Retardant Black ABS Plastic Panel

Mount with 1/4˝ Plastic Electrical

Conduit Adapter, Encapsulated for

Environmental Protection.

Electrical Connection: (4) 2 ft.,

18 AWG, 600V, 105°C PVC

Stranded Wire with Wire Pin

Terminations, Jacketed with 18˝

Slit Nylon Conrrugated Tubing

.556˝ O.D.

Weight: 3.52 oz (99.8 g).

DWYER INSTRUMENTS, INC.

Phone: 219/879-8000 www.dwyer-inst.com

P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: 219/872-9057 e-mail: info@dwyer-inst.com

Specifications - Installation and Operating Instructions

Model GFD 3-Phase Ground Fault Display

[25.4]

1-45/64

[43.26]

[101.6]

The GFD Model 3-Phase Ground Fault Display is intended for the use

on grounded systems to detect and indicate the phase of the first ground

fault condition. This enables corrective action to avoid the potential hazards

resulting from a second ground fault. With a nominal 3 phase line voltage

applied, a flashing normal green LED gives indication of a non-fault condition

and integrity of the wire connection to the corresponding phase. When there

is a phase-to-ground fault or a lost connection to the corresponding phase

occurs a flashing red LED gives positive fault indication.

INSTALLATION

BE SURE TO TURN THE POWER OFF PRIOR TO INSTALLING THIS

DEVICE

1. Follow all Local, State, and National Electrical Codes when installing this

equipment.

2. A 7/8” hole or 1/2” conduit knockout will have to be located on a visible

surface of the panel being monitored. When mounting on a hinged door,

place the hole location as close to the panel hinge as possible. This will

reduce the amount of cable slack required to properly open and close the

panel door. See Figure 1.

3. Remove the mounting hardware and insert the wiring harness and the

threaded nipple through the hole. Secure the unit in place by reinstalling

the locknut. Do not over torque.

4. Refer to Figure 2 for proper wiring connections.

NOTE: Matched color pairs must be kept linear from line to load side of the

fuse(s). Solid color to the line side, white striped to load side.

5. TURN POWER ON. All three green LEDs should flash independently at

a rate of 2 flashes/sec, indicating a normal operating condition.

6. If all three LEDs do not flash, TURN POWER OFF and check wiring con-

nections.

Figure 1

Figure 2

Bulletin TE-GFD

MAINTENANCE

Upon final installation, no routine maintenance is required. A periodic check

of the system is recommended. The GFD model is not field serviceable and

should be returned if repair is needed (field repair should not be attempted

and may void warranty). Be sure to include a brief description of the prob-

lem plus any relevant application notes. Contact customer service to

receive a return goods authorization number before shipping.

TE-GFD:Bulletin E-23-A 9/11/08 9:24 AM Page 1

Dwyer GFD User manual

Brand: Dwyer

Model: GFD

Type: User manual

This manual is also suitable for

Model GFD

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Dwyer GFD User manual

This manual is also suitable for

Dwyer GFD User manual

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