CR Magnetics CR9400 Data Sheet
Relays and Switches
E
CR Magnetics, Inc. 3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119
Web: http://www.crmagnetics.com E-mail: sales@crmagnetics.com
Another HUNTINGTON ELECTRIC Company
77
Current Switch - Normally Closed
The CR9400 Series is a low cost, self powered, fixed set-point Current
Switch designed for applications that require an on-off indication of
current flow.
The normal state of the switch is On when the current level is zero. Current levels above the guaranteed full-off level will turn the output to Off.
The Current Switch is recommended only for applications where the
continuous operating level is above the rated full on level of 350 mA.
Operation below this point will not drive the output device full-on and
derate the output ratings.
The unit available with a SCR output for switching AC. Connections can
be made directly to items such as a PLC or electro-mechanical relay.
Note that connections made directly to an inductive device such as an
electro-mechanical relay will require a customer supplied clamping
diode for DC operation or a snubber network for AC operation.
Applications
Continuity
Proving Switch
Features
Low Cost
Low Fixed Trip Point
Fully Isolated
Self-Powered
Specifications
Rated Full-off: 0.350 AAC RMS
Turn-on Time: 100 ms. max. @ rated full-on
Turn-off Time: 250 ms. max. to 80% of Vce
Maximum sense current: Continuous: 100 AAC
1 Second: 500 AAC
Frequency*: 50 to 400 Hz
Operating Temperature: -30° C to +60° C
Storage Temperature: -55° C to +85° C
Weight 0.08 LBS.
*All specifications for operation at 60 Hz only
Regulatory Agencies
AC SWITCHING (-ACA)
Off state voltage: 240 VAC RMS max.
Minimum switch voltage: 24 VAC RMS
On state current: 0.8 AAC RMS max. continuous
Off state leakage: 50 ua @ 240 VAC max.
Peak Non-Repetitive Surge Current:
8 AAC RMS (1 cycle, 60 Hz.)
OUTLINE DRAWING
PART NUMBER
CR❑❑❑❑ - ❑❑❑ - ❑ CURRENT SWITCH
9421 .27 dia. Window
9450 .61 dia. Window
9480 .49 Splitcore
ACA AC Output
ELECTRICAL CONNECTIONS
M Mounting Case
(optional)
CR9400 Series
CR9421 Outline Drawing
CR9421
CR9450
CR9421
CR9450
CR9480
CR9521
1.614(41)
CR9550
1.775 (45)
0.875
(22.2)
IN
(MM)
1.062
(27)
1.45
36.86 mm
1.95
49.57 mm
0.27 (6.8) DIA. CR9521
0.61 (15.5) DIA. CR9550
AWG #22, 12 (304) LONG
+
0.875
(22.2)
1.00
25.42 mm
0.92
23.39 mm
0.40
10.17 mm
24.91 mm
0.98
0.40
10.17 mm
2.00
50.84 mm
VAC
BLACK
BLACK
-ACA
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