Scully ST-47 Series User Manual

Self-Proving Vehicle Grounding Verication System
Diagram Appendix
Page 25.
6.9 DWG 61333 – Internal Wiring Diagram ST-47-ELK
61333 RevA
1 2 3 4 5 6 7 8 9
1
G
2
N
3
H
4 C
5
NO
120 VAC
INPUT
WET DRY DRY WET
120 VAC
INPUT
GRN
WHT
WHT
BLK
RED
YEL
BRN
ORN
ST-47-120/240 CIRCUIT MODULE
TB1 (END USER WIRING TERMINAL)
CHASSIS GROUND
GRN
1 2 3
F1 5A FAST BLOW
BLK
NOTES: UNLESS OTHERWISE SPECIFIED-
1. ``DRY'' CONTACTS CLOSE WHEN ST-47 IS IN PERMISSIVE MODE.
2. PERMISSIVE CONTACT RATED 250 VAC 5 AMP RESISTIVE.
S1 OPERATION CHART
POS. OFF AUTO BYPASS
S1A
0 X 0
S1B
0 0 X
X = SWITCH CLOSED 0 = SWITCH OPEN
3. SWITCH S1 SHOWN IN AUTO POSITION.
S1B
S1A
G
R
WHT
FRONT COVER COMPONENTS
SEE NOTE 4
4. USER REPLACEABLE FUSE.
TB1
TB2
BLK
BLK
BLK
CONNECTION TO GROUND BOLT OR GROUND BALL
ORN
BRN
ORN
CONTACT
FREE PERMISSIVE
SPST VOLT

Scully ST-47 Series Specifications

General

Brand	Scully
Model	ST-47 Series
Category	Control Unit
Language	English