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NPEXA-C5D122

Digital input isolated barrier, it converts switch or proximity detector signals (dry contact or NAMUR) from a hazardous area into transistor signals to a safe area by isolation. The normal output sate and line fault detection function can be set with the DIP switch. The input, output, and power supply are galvanically isolated from each other.

Input signal

Output signal

Channels

Power Supply Mode

LFD

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NPEXA-C5D122

【Core technology】

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【Installation and disposal】



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Installation                                               Disposal  






Supply
Power supply 18 ~ 60 V DC
Input
Input signal Dry contact or NAMUR
Output
Output signal Transistor
External voltage < 40 V DC
Sink current ≤ 40 mA
General parameters
Switching trigger point Input signal > 2.1mA, signal “1”, the yellow LED is always bright; Input signal < 1.2mΑ, signal “0”, the yellow LED goes out
Switch frequency < 5 kHz
DIP switch settings S1→a:output1 normal mode;S1→b:output1 inverted mode;S2→a:output1 LFD on;S2→b:output1 LFD of f;S3→a:output2 normal mode;S3→b:output2 inverted mode;S4→a:output2 LFD on;S4→b:output2 LFD off
Power dissipation 1 W
EMC data
Electromagnetic compatibility IEC 61326-3-1
Dielectric strength ≥ 3000V AC (intrinsically safe side / non-intrinsically safe side); ≥ 1500V AC (Power supply /non-intrinsically safe side)
Insulation resistance ≥ 100 MΩ (Input /Output/Power supply)
Operating conditions
Operation temperature -20 ℃ ~ +60 ℃
Storage temperature -40 ℃ ~ +80 ℃
Suitable location Mounting in safe area, and connected to the intrinsic safety apparatus in hazardous area zone 0, zone 1, zone 2, ⅡA, ⅡB, ⅡC, T4 ~ T6
State
LFD function When input current ≤ 50μA, considers the input line breakdown, the output transistor de-energized. If input current ≥ 6.5mA, considers the input circuit short-circuit, the output transistor de-energized, the indicator red flashing
Mechanical specifications
Connection method Screw connection
Dimension 12.8mm (W) × 110mm (H) × 117mm (D)
Mounting type DIN35 mm
Certified data
Product approvals NEPSI, CE, FCC, CCC
Ex marking [Ex ia Ga]ⅡC
Um 250 V
Uo 10.5 V (Terminals 1, 2; 3, 4)
Io 11.3 mA (Terminals 1, 2; 3, 4)
Po 29.7 mW (Terminals 1, 2; 3, 4)
Co 0.97 μF (Terminals 1, 2; 3, 4)
Lo 100 mH (Terminals 1, 2; 3, 4)
NPPB-DIN Bus rail power supply
35mm standard rail
NPPB-BS210 I/O terminal base
Connect the rail BUS base, external power is introduced through the terminal block of the base. If a redundant power module is selected, this terminal can be left unselected.
NPPB-BSC028 Dust cover
Protect the exposed bus and split the combination as needed.
NPPB-SS5 Limiter
For fixed position, standard 2 sets
NPPB-TS35B Fixed piece
Material: metal iron, used for rail load-bearing reinforcement, standard 2 pieces
NPEXA-C11

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