Current Sensors
Introduction
• Honeywell is proud to introduce its new line of
current sensors and switches.
- Current sensors and switches detect whether current is
flowing through electrical equipment, such as pumps and
motors.
 Detects when equipment is turned on or off.
 Transmits the status to a building management system, DDC or PLC
controller.
- The wires are threaded through a hole in the current sensor
which measures the current going through the wire.
- Current sensors and transmitters can be used to detect a
motor failure, belt loss or slippage, or a mechanical failure.
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Key Features
• Higher operating range (250A) and very low trip pointsdown to 0.12 Amps
• Integral DIN rail mount
• Solid core and split core models
• Quick signal allows for service actions to be taken
immediately to prevent damage and reduce downtime
• Current sensors are rated at 250 amps, allowing you to
meet high-amp situations without needing transformer
• UL rated
• 5-year warranty
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Key Features
TRANSMITTER
Jumper Selectable
Current Range
SWITCH
Solid
core
Split core
DIN Rail integrally mounted
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UL rated
Installation
• Easy to install and service
• Built-in DIN rail mounting flange simplifies
installation
• Red and green LEDs – on adjustable switches. Red
indicates over the trip point, green indicates below.
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Current Switches
• CSS solid and CSP split core fixed and adjustable
trip points
- Monitor fans, pumps, motors, compressors, or other electrical
equipment.
- Change in current can trip the sensor to indicate equipment
status or alarm condition.
- Up to 250 Amps.
- Do not need to be externally powered, since the power for the
- switch is induced from the conductor being monitored.
- Red LED – Indicates above the trip point on fixed models.
- Red and Green Status LEDs – indicate above or below trip point
on adjustable models.
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Current Sensors (Transmitters)
• CTS solid and CTP split core 4-20mA, 0-5 and 010Vdc
- Solid core excellent choice for new installations
- Split core ideal for retrofit or existing installations
- Linear proportional output signal, can be monitored by your
Building Management, DDC or PLC controller.
- Available in either an Average or True RMS (for VFDs) output
version.
- Jumper selectable input ranges except for the 0 to 5 Amp input
range.
- Current sensors can be used in load trending (current monitoring)
type applications.
- Sensors are fast acting, reliable and extremely easy to install.
- No additional DIN rail mounting clips are necessary, due to the
unique design of the integral din rail mounting flange.
- All of the CTS20 and CTP20 series current sensors are factory
calibrated using a NIST Traceable standard
- The CTS20 and CTP20 must be externally powered using a 12 to
35 Vdc power supply.
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Current Switch Description
Current Switches
Part Number
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Description
Core Type
Normally Open or Normally Closed
Trip Point
Output Switch Rating
CSS-O-F5-001
"Go/No Go" Current Switch
Solid
N/O
0.5A
0.3A at 200Vac/Vdc
CSS-O-F1-001
"Go/No Go" Current Switch
Solid
N/O
0.1A
0.3A at 200Vac/Vdc
CSS-C-F5-001
"Go/No Go" Current Switch
Solid
N/C
0.5A
0.15A at 300Vac/Vdc
CSS-C-F1-001
"Go/No Go" Current Switch
Solid
N/C
0.1A
0.15A at 300Vac/Vdc
CSS-O-A300-001
Adjustable Current Switch
Solid
N/O
0.8A to 250A
0.4A at 200Vac/Vdc
CSS-O-A200-001
Adjustable Current Switch
Solid
N/O
0.35A to 250A
0.4A at 200Vac/Vdc
CSP-O-F15-001
"Go/No Go" Current Switch
Split
N/O
1.5A
0.3A at 200Vac/Vdc
CSP-O-F10-001
"Go/No Go" Current Switch
Split
N/O
1.0A
0.3A at 200Vac/Vdc
CSP-O-A300-001
Adjustable Current Switch
Split
N/O
2.0A to 250A
0.4A at 200Vac/Vdc
CSP-O-A200-001
Adjustable Current Switch
Split
N/O
1.7A to 250A
0.4A at 200Vac/Vdc
CSP-C-A200-001
Adjustable Current Switch
Split
N/C
1.7A to 250A
0.15A at 300Vac/Vdc
Current Transmitter Description
Current Transmitters
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Part Number
Core Type
Output
Current Range
Type
True RMS or average
CTS-20-250-AVG-001
Solid
4-20mA
0-100, 0-200, 0-250A
adjustable
Average
CTS-20-250-VFD-001
Solid
4-20mA
0-100, 0-200, 0-250A
adjustable
True RMS
CTP-20-200-AVG-001
Split
4-20mA
0-100, 0-150, 0-200A
adjustable
Average
CTP-20-050-VFD-001
Split
4-20mA
0-10, 0-20, 0-50A
adjustable
True RMS
CTS-05-050-VDC-001
Solid
0-5Vdc
0-10, 0-20, 0-50A
adjustable
Average
CTS-10-250-VDC-001
Solid
0-10Vdc
0-100, 0-200, 0-250A
adjustable
Average
Feature summary
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FEATURE
BENEFIT
Very low operating current trip point
Fewer wire loops required (if any), saving
installation time
LED status indication (red light current is above
set point, green light current is below set
point)
Reduces set-up time and troubleshooting
Integral DIN Rail mounting clips
No accessory mounting clips needed
5-year warranty
Product satisfaction
Wide operating frequency range
Small sensor to operate in larger applications
Accepts inputs up to 250 Amps
Smaller sensor to measure higher current, more
cost effective solution
Induced power supply
Power induced from monitored conductor, no
separate power supply required
Wide operating temperature range
Switches can be used in applications up to 150°F
Split core design
Installer does not have to power down the unit or
disconnect wires to install switches
Large Hole Size (0.75 inches)
Will fit up to 350 MCM cable
Literature
Technical Literature
63-2654
Product Data Vdc Output Current Sensors
63-2656
Product Data 4-20mA Output Current Sensors
63-2651
Product Data Adjustable Switches
63-2650
Product Data Fixed Switches
62-0247
Installation Vdc Output Current Sensors
62-0245
Installation 4-20mA Output Current Sensors
62-0242
Installation Adjustable Switches
62-0241
Installation Fixed Switches
Sales Literature
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63-9623
Current Sensor Brochure
63-9285
Sensors Product Overview
http://customer.honeywell.com/buildings
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