Surge Protective Devices
STC-SLAC Series
STCSLAC12036
Introduction
The STCSLAC12036 surge suppressor is specifically designed for electronic instruments used by the water/
wastewater industries. It combines hybrid AC power protection and signal line protection in a NEMA-4X
polycarbonate enclosure.
DANGER
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
• Apply appropriate personal protective equipment (PPE) and follow safe electrical work practices. See NFPA 70E,
NOM-029-STPS or CSA Z462.
• This equipment must only be installed and serviced by qualified electrical personnel.
• Turn off all power supplying this equipment before working on or inside equipment.
• Always use a properly rated voltage sensing device to confirm power is off.
• Replace all devices, doors and covers before turning on power to this equipment.
• This equipment must be effectively grounded per all applicable codes. Use an equipment-grounding conductor to
connect this equipment to the power system ground.
• Confirm that the Surge Protective Device voltage rating on the module or nameplate label is not less than the
operating voltage.
• On DC signal line protection do not apply more than 150mA
• On AC line protection do not apply more than 15 Amps of continuous current.
Failure to follow these instructions will result in death or serious injury.
WARNING: This product can expose you to chemicals including DINP, which is known to the State of
California to cause cancer, and DIDP which is known to the State of California to cause birth defects or other
NOTICE
LOSS OF SURGE SUPPRESSION
• Make certain that Surge Protective Device is disconnected from the circuit it is protecting before conducting high
potential insulation testing.
Failure to follow these instructions can result in equipment damage.
Page: 1
STCSLAC12036
Installation
1. Turn off all power supplying this equipment before working on or inside equipment.
2. Confirm that the unit has the same voltage rating and configuration as the power system voltage and
power system voltage to which it will be connected.
For AC Power Connections:
a. Connect AC Power as Marked on Case using #14 - #12 AWG wire (L, N, G). Torque to
12 lb-in (1.35 N-m).
b. Keep 120 VAC Power feed separate from Low Voltage signal feed.
For Signal Line Connections:
a. Connect GND Terminal to Local Ground using #12 AWG wire minimum. Torque to 12 lb-in (1.35 N-m).
b. L1 and L2 – Connect for Signal Pair #1.
c. L3 and L4 – Connect for Signal Pair #2.
d. Terminals accept #24 - #14 AWG wire, torque to 3.47 lb-in (0.4 N-m).
3. Replace the barrier, cover/door and/or trim to the equipment.
4. Equipment may be re-energized after all the above steps are complete.
Figure 1: STCSLAC12036 Power Flow
POWER FLOW
IN
IN
OUT
OUT
(FIELD) SIDE
SIGNAL
(EQUIPMENT) SIDE
SIGNAL
Equipment
you want to
protect goes
on this side.
Upstream or
Line Side
(FIELD) SIDE
(EQUIPMENT) SIDE
120 VAC POWER
120 VAC POWER
The STCSLAC12036 is a directional surge protector. Connection must
flow “in” the Unprotected (Field) Side, through the SPD, and “out” to the
Protected (Equipment) Side.
Page: 2
STCSLAC12036
Dimensions (in. / mm.)
Enclosure Dimensions (in. / mm.)
Enclosure Type
H
W
D
NEMA 4X
Polymeric (Standard)
7.0
(178.0)
7.0
(178.0)
3.0
(76.0)
J
Page: 3
STCSLAC12036
General Technical Specifications
AC Power Protection
Operating Voltage
Clamping Voltage
120 VAC, 47-63 Hz
Common Mode
Normal Mode (L-N)
(L-G) (N-G)
280 V
IEEE C62.41.2 Cat A Ringwave (6kV / 200A)
IEEE C62.41.2 Cat B Ringwave (6kV / 500A)
IEEE C62.41.2 Cat B Combo Wave (6kV / 3kA)
Maximum Operating Current
Peak Surge Current
172 V
205 V
280 V
330 V
360 V
15 A
39 kA (8x20 µs)
MOV/Inductor/Capacitor
SPD Technology
EMI Attenuation
>40dB (100kHz - 100MHz)
Signal Line Protection
Operating Voltage
Maximum Operating Current
Peak Surge Current
SPD Technology
0-36 VDC
150 mA (0.15 A)
10 kA (8x20 µs)
GDT/PTC/SAD
5 Ohm (Typical)
Series Resistance
Page: 4
STCSLAC12036
Technical Support
Technical Support E-Mail: [email protected]
Toll-Free: (800) 377-4384
USA: (847) 268-6651
Warranty
Please see the “Terms & Conditions of Sale” document.
While every precaution has been taken to ensure accuracy and completeness in this manual, Appleton Grp LLC d/b/a Appleton Group
assumes no responsibility, and disclaims all liability for damages resulting from use of this information or for any errors or omissions.
Page: 5
STC-SLAC Series
A272-340 Rev. 0 12/2020
The Emerson logo is a trademark and service mark of Emerson Electric Co.
Appleton Grp LLC d/b/a Appleton Group. SolaHD is a registered trademark of Appleton Grp LLC.
All other marks are the property of their respective owners. © 2020 Emerson Electric Co. All rights reserved.
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