- Isolated Safety Barriers
- Signal Isolators
- Surge Protective Devices
- Safety Relays
- Isolated Intelligent I/O Modules
- Intelligent Gateways
- Industrial Data Optical Transceivers
- Online Dew Point Analyzers
- Data Acquisition Modules
- HART data converter
- Terminal Board
PHD-44TF-27
Overview
Input in hazardous area |
|
Input signal |
Switch contacts/proximity switches |
The supply voltage of the sensor |
About 8V |
Switching rate |
<10kHz |
Input/output characteristics: |
|
On site input current |
>2.1mA, the output is closed, indicating ON; |
Output normally "Open"/"Closed" Contact conversion control |
When dial switch K1-K4 is at "ON" side, the relay output is "Normally closed",when dial switch K1-K4 is at "OFF" side, the relay output is "Normally open". |
Output in safe area |
|
Output signal |
Relay |
Contact capacity |
250VAC/2A,30VDC/2A when subjected to resistive loads |
Response time |
20ms |
Basic parameters |
|
Supply voltage |
20~35V DC |
Power consumption |
≤85mA(24V power supply, when the relay contacts close) |
LED indicator |
Green: Power indicator |
Temperature parameters |
Working temperature: -20℃ ~ +60℃, |
Relative humidity |
10%~95% RH no condensation |
Insulation strength |
Between intrinsically safe side and non-intrinsically safe side (≥3000VAC/min); |
Insulation resistance |
≥100MΩ (between input/output/power supply) |
EMC |
According to IEC 61326-1 (GB/T 18268), IEC 61326-3-1 |
Wire requirements |
Cross-section ≥ 0.5mm²; Insulation strength ≥ 500V |
Applicable field equipments |
Field equipment such as dry contacts or NAMUR type proximity switch inputs that comply with DIN19234 standard |
Installation place |
Installed in a safe zone, it can be connected to intrinsic safety instruments in hazardous areas up to Zone 0, IIC, Zone 20, and IIIC |
| Safe certification | |
| Explosion-proof mark | [Ex ia Ga] IIC [Ex ia Da] ⅢC |
| Explosion-proof standard | GB/T 3836.1-2021 GB/T 3836.4-2021 |
| Terminals 5-4、5-6 2-1、2-3 | Um:250V AC/DC,Uo=10.5V DC,Io=15mA, Po=39.4mW,Co=1.7μF,Lo=165mH. |
| Certification body | CQST(China National Quality Supervision and Test Centre for Explosion Protected Electrical Products) |

Note: 1. The power supply of the power rail is an optional function. Users need to specify the power supply mode when ordering. Please refer to attachment on page 89. For switch contact sensor, if the LFD function is required, a resistor must be connected.
