Red Lion RLY7 - Manual (Page 2)

INPUT SPECIFICATIONS
1. Control Voltage Range: 4 to 32 VDC
2. Turn-on Voltage (Min.): 4 VDC
3. Turn-off Voltage (Max.): 1 VDC
4. Input Current (Max.): 15 mA
GENERAL SPECIFICATIONS
1. Isolation (Input to Output to Base): 4000 V
RMS
2. Operating Temperature Range: 0°C to 40°C
SAFE OPERATING CONDITIONS
The relay must always operate within the “Safe Operating Area” of the
Derating Curve Figure. Operations outside the Safe Operating Area will shorten
the life of, or cause permanent damage to, the relay. The ambient temperature
should be measured 1" (25 mm) below the relay (when mounted to a vertical
surface) and with all of the associated equipment operating.
It is strongly recommended that a 1" (25 mm) clearance is maintained on all
four sides of the relay. If the relays are mounted against each other, then the end
relays must be derated by an additional 10% (of the Derating Curve) and the
middle relays by 20%.
In small enclosures, adequate ventilation must be provided to assure proper
safe operating temperature. Accumulation of dust and dirt on the heat sink fins
will also affect heat dissipation. In extreme dust and dirt conditions, the relay
must be derated by an additional 20%.
SCHEMATIC
FUSING
Devices such as electromechanical circuit breakers and slow blow fuses
cannot react quickly enough to protect this relay in a shorted condition. Fast
“semiconductor fuses” with appropriate I 2 T ratings are strongly recommended.
MECHANICAL INTERRUPT SWITCH
The off-state leakage current of the power unit is 10 mA maximum. The
voltage level of the output will rise proportional to the resistance of the load due
to this leakage current. Full line voltage can be measured when the output is
connected to a high resistance load and the power unit is in the off-state.
A mechanical interrupt switch is recommended between the line voltage and
the load. The switch should be opened when servicing any part of the output
wiring. When measuring the off-state output voltage of the unit for correct
operation, load the output of the RLY7 with a small resistance (approximately
100 ohms).
WIRING GUIDELINES
The controlling device and the relay load should NEVER share the same
power feed. It is recommended that this relay be installed as close as possible to
the load to keep the power cable runs short. The control voltage can run over
distances in excess of 200 feet with shielded cable. If using shielded cable,
connect the shield to the minus “-” terminal of the control signal at one end only.
Zero
voltage
detector
L3 L2 L1
Voltage
Control
T3 T1 T2
LINE
ORDERING INFORMATION
MODEL NO. DESCRIPTION PART NUMBER
RLY7 Three Phase Din Rail Mount Solid State Relay RLY70000
L1
L2
L3
N
without neutral
Star or Wye connection Star or Wye connection
with neutral
Delta
Connection
T2 T1 T3
L2 L1 L3
Control Control Control
L3 L2 L1
T1 T3 T2
L1 L2 L3
T2 T3 T1
KILN
9
T1 T2 T3
13
16
15
14
11
12
10 -
+
Control
L1 L2 L3
L3
L2
L1
-
8 +
7
6
5
4
2
3
1
SSR DRIVE OUTPUT
MODEL TCU WITH
THREE PHASE HEATING APPLICATION
This application shows a Model TCU Temperature Controller regulating
the temperature of a drying kiln. The TCU has an SSR Drive Output
Module installed. This module controls the three phase relay directly.
Derating Curve
Safe
Operating
Area
0
10
20
30
20 30 40 50 60 70 80
Operating Load
Current (Amps RMS
)
Ambient Temperature (C°)
40
Do not dispose of unit in trash - Recycle