Product Overview

7800 SERIES EC7823/RM7823 RELAY MODULE
3 66-2031—3
Table 1. Terminal Ratings for RM7823A.
a
The RM7823 must have an earth ground providing a connection between the wiring subbase and the control panel or the
equipment. The earth ground wire must be capable of conducting the current to blow the 15A fuse (or breaker) in the event of
an internal short circuit. The RM7823 needs a low impedance ground connection to the equipment frame which, in turn, needs
a low impedance connection to earth ground. For a ground path to be low impedance at RF frequencies, the connection must
be made with minimum length connections having maximum surface areas. Wide straps or brackets rather than leadwires are
preferred. Be careful to verify that mechanically tightened joints along the ground path, such as pipe or conduit threads or
surfaces held together with fasteners, are free of nonconductive coatings and are protected against mating surface corrosion.
Table 2. Terminal Ratings for EC7823A.
a
TheEC7823 must have an earth ground providing a connection between the wiring subbase and the control panel or the
equipment. The earth ground wire must be capable of conducting the current to blow the 15A fuse (or breaker) in the event of
an internal short circuit. The EC7823 needs a low impedance ground connection to the equipment frame which, in turn, needs a
low impedance connection to earth ground. For a ground path to be low impedance at RF frequencies, the connection must be
made with minimum length connections having maximum surface areas. Wide straps or brackets rather than leadwires are
preferred. Be careful to verify that mechanically tightened joints along the ground path, such as pipe or conduit threads or
surfaces held together with fasteners, are free of nonconductive coatings and are protected against mating surface corrosion.
Terminal No. Description Ratings
G
Flame Sensor Ground
a
—
Earth G
Earth Ground
a
—
L2(N) Line Voltage Common —
3 Line Voltage Supply (L1) 120 Vac (+10/-15%), 50/60 Hz (±10%).
4-7 Unused —
8 9KA Common —
9 9KA1 N.O. 9.8 AFL, 58.8 ALR at 120 Vac.
10 9KA2 N.C. 1A Pilot Duty at 120 Vac.
F(11) Flame Sensor 60 to 220 Vac, current limited.
12 Unused. —
13 9KB Common —
14 9KB1 N.C. 1A Pilot Duty at 120 Vac; also rated for 5V control circuits.
15 9KB2 N.O. 1A Pilot Duty at 120 Vac; also rated for 5V control circuits.
16-21 Unused. —
22 Shutter 120 Vac, 0.5A.
Terminal No. Description Ratings
G
Flame Sensor Ground
a
—
Earth G
Earth Ground
a
—
L2(N) Line Voltage Common —
3 Line Voltage Supply 220-240 Vac (+10%/-15%), 50/60 Hz (±10%)
8 9KA Common —
9 9KA1 N.O. 220-240 Vac,4A at PF = 0.5, 20A inrush.
10 9KA2 N.C. 220-240 Vac, 2A at PF = 0.2.
F(11) Flame Sensor 16 to 220 Vac, current limited.
13 9KB Common —
14 9KB1 N.C. 220-240 Vac, 0.5A at PF = 0.5.
15 9KB2 N.O. 220-240 Vac, 0.5A at PF = 0.5
22 Shutter 220-240 Vac, 0.25A.