Isolated Barrier SPD Safety Relay NEWPWR-Focus Security and Stability on Industrlal measurement and control signals

NPEXA-CM31S1S

Analog input isolated barrier, it detects loop current and converts it from a hazardous area into 4~20mA（sink） signals to a safe area by isolation, and also provides transmitters with power in the hazardous area. It allows transmission of HART communication signals. The input, output, and power supply are galvanically isolated from each other.

Input signal

4～20 mA

Output signal

4～20 mA

Channels

1 input/2 outputs

Power Supply Mode

24VDC terminal power supply

HART

Support

Share

Installation Disposal

Supply

Power supply

18 ~ 60 V DC

Input

Input signal	4 ~ 20mA, HART
Line resistance	approx. 75Ω
Available voltage	open-circuit voltage ≤ 26V; voltage: ≥ 16V at 20mA

Output

Output signal	4 ~ 20mA (Sink), HART
Load resistance	RL < [(U-3)/0.02]Ω; U: Loop power supply

Transfer characterisics

Accuracy	0.1 %F.S.
Temperature drift	30 ppm/℃

General parameters

Response time	≤ 2 ms
Power dissipation	1.0 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

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	5 V (Terminals 1, 2); 28V (Terminals 2, 3)
Io	93 mA (Terminals 2, 3)
Po	651 mW (Terminals 2, 3)
Co	70 μF (Terminals 1, 2); 0.058 μF (Terminals 2, 3)
Lo	2.8 mH (Terminals 2, 3)

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.

Protect the exposed bus and split the combination as needed.

For fixed position, standard 2 sets

Material: metal iron, used for rail load-bearing reinforcement, standard 2 pieces

NPEXA-C11

一入一出

热电偶输入安全栅

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