Installation Instructions
Siemens Industry, Inc.
Building Technologies Division
P/N 315-049475-73
Wiring Entering Outlet Box All power limited wiring must enter the outlet box separately from the electric light,
power, Class 1, or non-powered limited fire protection signaling conductors. For the
TRI-R, wiring to terminal block positions 1, 2, 3, 4, and 5 must enter the outlet box
separately from terminals 6, 7, and 8.
Minimize the length of wire entering the outlet box.
WIRING AT THE TERMINAL BLOCKS
Power Limited Wiring (Refer to Figure 5) Wiring to positions
1, 2, 3, 4, and 5 is power limited.
Non-Power Limited Wiring Wiring to positions 6, 7, and 8 is considered
non-power limited.
Ground shield ONLY at the specified
location on the Control Panel.
NOTES:
1. All supervised switches
must be held closed and/or
open for at least a quarter of
a second to guarantee
detection.
2. End of line device: 470 ohm,
1/4W resistor, P/N 140-820164.
For Canadian applications,
use Model EL-33 with 470
ohm, 1/4W resistor.
3. HTRI is polarity insensitive.
Line 1 and Line 2 can be
either line of the loop.
4. Electrical ratings:
Voltage maximum: 30 VDC
Current maximum:
1.3mA during polling
5. Supervised switch ratings:
Voltage maximum: 27 VDC
Current maximum: 6mA
during polling
Contact resistance maximum:
10 ohms
Maximum cable length:
200 feet (18 AWG)
C
Line to line
: 0.02uF
C
Line to shield
: 0.04uF
Max line size: 14 AWG
Min line size: 18 AWG
6. Relay contact ratings:
4A, 125 VAC resistive
4A, 30 VDC resistive
Inductive:
4.0A, 250 VAC (0.4 P.F.)
3.5A, 120 VAC (0.6 P.F.)
3.0A, 30 VDC (0.6 P.F.)
2.0A, 120 VAC (0.4 P.F.)
2.0A, 120 VAC (0.35 P.F.)
2.0A, 30 VDC (0.35 P.F.)
The relay is shown in
standby condition.
Figure 5
HTRI-R Power Limited Wiring
WIRES CONNECTED TO TERMINALS
1 THROUGH 5 TO ENTER/EXIT
ELECTRICAL BOX OPPOSITE SIDE
FROM WIRES CONNECTED TO
TERMINALS 6 THROUGH 8.
P
P
P
P
P
N
N
N
P = POWER LIMITED
N = NON-POWER LIMITED
TO NEXT
ADDRESSABLE DEVICE
LINE 1
LINE 1
LINE 2
LINE 2
END OF LINE DEVICE
SEE NOTE 2
SEE NOTE 7
PROGRAMMABLE
RELAY CONTACTS
SEE NOTE 6
SUPERVISED
PROGRAMMABLE SWITCH
SEE NOTES 1 AND 5
FROM CONTROL PANEL
OR FROM PREVIOUS
ADDRESSABLE DEVICE
1
2
3
4
5
8
7
6
LINE 1
LINE 1
LINE 2
LINE 2
SEE NOTE 7
TO NEXT
ADDRESSABLE DEVICE
END OF LINE DEVICE
SEE NOTE 2
NOT USED
SUPERVISED
PROGRAMMABLE SWITCH
SEE NOTES 1 AND 5
FROM CONTROL PANEL
OR FROM PREVIOUS
ADDRESSABLE DEVICE
1
2
3
4
5
8
7
6
LINE 1
LINE 1
LINE 2
LINE 2
SEE NOTE 7
NOT USED
TO NEXT
ADDRESSABLE DEVICE
END OF LINE DEVICE
SEE NOTE 2
END OF LINE DEVICE
SEE NOTE 2
SUPERVISED
PROGRAMMABLE SWITCH
SEE NOTES 1 AND 5
SUPERVISED
PROGRAMMABLE SWITCH
SEE NOTES 1 AND 5
FROM CONTROL PANEL
OR FROM PREVIOUS
ADDRESSABLE DEVICE
1
2
3
4
5
8
7
6
EOL device must be a 470 ohm, 1/4 W
resistor. When replacing an existing HTRI
on a device loop, you must also replace
the EOL resistor if it is not 470 ohms, 1/4W.
Figure 6
HTRI-R Wiring
Figure 7
HTRI-S Wiring
Figure 8
HTRI-D Wiring