Advantages of the 841 Current Sensing Relay
Output Indication
Red LED Light.
Input Indication
Green LED Light.
Current Sensing Adjustment Knob
Sense Anywhere from 10% to 100%
of the Rated Sensing Current.
Input Terminals
Accepts up to a
14 AWG Wire.
Time delay
Delay the Transfer of
Contacts from
0 to 10 Secs.
SECTION 5
DIN Rail Mounting
Mounts Directly On a DIN Rail.
5/10
M a gn e c r a ft S o lu t io n G ui de 1 0 5 A
The 841 Current Sensor Series is a complete current sensing solution in one modular
package which mounts directly to a DIN rail. This product allows the user to monitor the
current of one circuit (1 to 8 amps) and switch another circuit in case of an over current or
under current condition. The built in time delay feature allows the user to accurately switch
the output anytime between 0 to 10 seconds after the preset current monitoring condition
is violated. Also, the 841 has the capability to extend the sensing range up to 600 A
through the use of current transformers.
Solid State Circuitry
Used for Sensing and Timing Control.
• The variable trip point feature allows the
user to accurately sense over/under loads.
• Offers a “one stop solution” for
your
power management system.
• Two LED status indicators; indicate status
at a glance.
SECTION 5
• The Green LED is on when
power is
applied to the input terminals. The Red
LED blinks during time-out, and is ON
when the output is generized.
• Color and appearance designed
for high
visibility in all environments.
Output Terminals
Accepts up to a 14 AWG wire.
• The wide input voltage range of 24 to 240
AC enables the device to work with all
popular AC voltages.
• Only 17.5 mm wide making it
ideal for
tight spaces.
• Engineering availability allows
for
customized relay solutions.
Optional Panel Adapter
(16-788C1)
See Section 3 p.18
www.magnecraft.com
Magnecra f t So l u t io n Gu i de 1 0 5 A
847-441-2540
5/11
841 Current Sensing Relay/SPDT
15 Amp Rating
Input Indication
Green LED
Output Indication
Red LED
Current Sensing
Adjustment Knob
Time Delay
Supply
Terminals
UL Listed
File No. E234203
WHITE
Output Terminals
WHITE
DIN Rail Mounting
General Specifications (@ 25°C)
Output Characteristics
Number and type of Contacts
Contact Material
Current rating
Switching voltage
(UL 508)
Units
841CS1-UNI
SPDT
Silver Alloy
15
240 AC, 50/60 Hz
24 DC
1/2 @ 120VAC
1 @ 240 VAC
B300
100
Red
24….240 AC
1.5
Green
0.1….1
1
0….10
5
1
25
20
841CS2-UNI
SPDT
Silver Alloy
15
240 AC, 50/60 Hz
24 DC
1/2 @ 120VAC
1 @ 240 VAC
B300
100
Red
24….240 AC
1.5
Green
0.2….2
1
0….10
5
1
25
20
841CS5-UNI
SPDT
Silver Alloy
15
240 AC, 50/60 Hz
24 DC
1/2 @ 120VAC
1 @ 240 VAC
B300
100
Red
24….240 AC
1.5
Green
0.5….5
1
0….10
5
1
25
20
841CS8-UNI
SPDT
Silver Alloy
15
240 AC, 50/60 Hz
24 DC
1/2 @ 120VAC
1 @ 240 VAC
B300
100
Red
24….240 AC
1.5
Green
0.8….8
1
0….10
5
1
25
20
@ 240 VAC, 24 VDC
Minimum Switching Requirement
Indication
Input Characteristics
Voltage Range
Maximum consumption
Indication
LED
A
V
V
HP
HP
Pilot Duty
mA
Blinks = Timing
On = Energized
V
VA
LED
SECTION 5
Sensing Characteristics
Sensing Range
Timing Characteristics
Time Scales
Time Ranges Available
Tolerance
Repeatability
Operate Time
Release Time
Performance Characteristics
Electrical Life
Mechanical Life
Dielectric strength
Terminal Wire Capacity
Terminal Torque (maximum)
Environment
Product certifications
Ambient air temperature
around the device
Degree of protection
Weight
A
Mechanical Setting
Constant Voltage
and Temperature
Maximum
Maximum
Operations @ Rated Current
(Resistive)
Unpowered
Input to Contacts
Between Open Contacts
sec
%
%
ms
ms
V
V
AWG (mm2)
in lb (Nm)
100,000
10,000,000
2500 AC
1000 AC
14 (2.1)
7.1 (0.8)
UL, CE
-30…+70
-20…+55
IP 20
60
100,000
10,000,000
2500 AC
1000 AC
14 (2.1)
7.1 (0.8)
UL, CE
-30…+70
-20…+55
IP 20
60
100,000
10,000,000
2500 AC
1000 AC
14 (2.1)
7.1 (0.8)
UL, CE
-30…+70
-20…+55
IP 20
60
100,000
10,000,000
2500 AC
1000 AC
14 (2.1)
7.1 (0.8)
UL, CE
-30…+70
-20…+55
IP 20
60
Standard version
Storage
Operation
°C
°C
grams
5/12
M a gn e c r af t S ol u t i on G u id e 1 0 5 A
agn
a ft
uid
05
Microcontroller MCU
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