Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
{"title":"HD2-GTR-4PA | PROFINET to 4x PROFIBUS PA Gateway","imgUrl":"https:\/\/img.chinax.com\/nimg\/50\/5a\/672ee57820d9f0144054ab0f8914-200x200-1\/hd2_gtr_4pa_7c_profinet_to_4x_profibus_pa_gateway.jpg","attrs":{"Certifications":"S","Supply Ability":"100pcs per month","Brand Name":"","Delivery Time":"Negotiable"}}
HiC2821 | 1-Ch Isolated Barrier, 24V DC Bus Powered, 2 Relay Outputs, SIL 2
P+F HiC2821 switch amplifier — 1-ch isolated barrier for NAMUR/dry contact inputs, 24V DC bus powered via termination board, 2 relay outputs + fault relay, SIL 2 per IEC 61508. H-System module.
Product Overview
The P+F HiC2821 is a 1-channel switch amplifier (isolated barrier) belonging to the H-System family — designed for intrinsic safety applications in hazardous areas. It transfers digital signals from NAMUR sensors or mechanical contacts (located in Zone 0/1/2) to the non-hazardous control room via galvanically isolated relay outputs. The device is 24 V DC bus powered through the HiC termination board, eliminating the need for a separate auxiliary power supply. Key capabilities include signal splitting (1 input → 2 outputs), line fault detection (LFD) with configurable thresholds, and a reversible mode of operation via DIP switches. It achieves SIL 2 systematic capability per IEC/EN 61508, making it suitable for safety-relevant control loops in oil & gas, chemical, and pharma plants.
Technical Specifications (Input & Output)
Parameter
Specification
Model
HiC2821 (P+F H-System Switch Amplifier)
Signal Type
Digital Input (NAMUR or dry contact)
Supply
19 … 30 V DC, bus powered via Termination Board (SL1), ripple ≤ 10 %, Ir ≤ 30 mA
NAMUR Characteristics
Open-circuit voltage ≈ 10 V DC, short-circuit current ≈ 8 mA
Switching Point / Hysteresis
1.2 … 2.1 mA / approx. 0.2 mA
Line Fault Detection (LFD)
Breakage I ≤ 0.1 mA, Short-circuit I ≥ 6.7 mA
Outputs
2 × Relay Contact (output I: signal; output II: signal or fault message), 50 V DC / 0.5 A per contact
Fault Output
Open collector transistor on internal fault bus (SL1: 6b)
Switching Frequency
≤ 10 Hz
Energize/De-energize Delay
≤ 20 ms / ≤ 20 ms
Mechanical Life
10^7 switching cycles
Technical Specifications (Safety & Mechanical)
Parameter
Specification
Safety Integrity Level
SIL 2 acc. to IEC/EN 61508, Systematic Capability SC 3
Hazardous Area Marking (Input)
[Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I (allows sensors in Zone 0/1/2, 20/21/22, M1)
Hazardous Area Marking (Output)
II 3G Ex nA nC IIC T4 Gc (safe-side, non-Ex area)
Galvanic Isolation
Input/Output & Input/Supply: 375 V peak per IEC/EN 60079-11
Maximum Safe Voltage (Um)
253 V AC (both input & output sides)
Mounting
On HiC Termination Board (12.5 mm module width, coding pins 1 and 2 pre-trimmed)
Configuration
Via DIP switches on front panel (mode reversal, LFD on/off, output II function)
Indicators
3 × LEDs: Power (green), Status/Fault (yellow/red)
2014/34/EU, 2014/30/EU, EN 61326-3-2 (industrial immunity)
Key Features
Bus-Powered via Termination Board: No separate 24 V DC wiring to each module — power and signal routed through the common termination board, simplifying panel layout.
Dual Relay Outputs (Signal Splitting): One field input drives two independently configurable relay outputs — enables signal duplication to two separate control systems (e.g., DCS + SIS) without extra components.
Reversible Mode & Configurable Second Output: DIP switches allow reversing the input logic (NO↔NC behavior) and repurposing output II as a fault indication instead of a second signal — highly flexible commissioning.
Line Fault Detection (LFD): Automatically detects sensor wire break or short to ground, forcing relays to de-energize and signaling fault per NAMUR NE 44 — critical for safety loops.
SIL 2 / SC 3 Capable: Suitable for safety instrumented functions up to SIL 2 when integrated with appropriate logic solvers.
Typical Applications
Oil & Gas / Petrochemical: NAMUR proximity switch and flame detector signals from Zone 1 to DCS/SIS.
Chemical Plant Hazardous Areas: Conductive level switch and solenoid valve limit switches in Zone 0/1.
Pharmaceutical & Biotech: Safety interlocks for agitators, valves, and cleanroom door switches.
Mining & Grain Handling: Dust ignition protection (Ex ia Da IIIC) for equipment in combustible dust zones.
The HiC2821 is the H-System module version — it mounts on a HiC termination board (e.g., HiCTB04, HiCTB08, HiCTB16). For the K-System DIN-rail version with identical electrical specs, see KCD2-SR-EX2.R or KFD2-SR-EX2.R (single/dual channel equivalents). The 0000 suffix is not a valid P+F ordering code for this device — HiC2821 is the complete type designation.
Founded in 2012, ACH is a top-tier distributor of industrial automation products, supplying genuine devices from leading brands like ABB, P+F, E&H, AB, MTL to emerging markets worldwide. Our mission is to provide 100% Genuine products at the most competitive prices, helping customers reduce costs and strengthen their market position.
Frequently Ask & Questions
Are preferential prices available?
Long-term brand partners can get competitive product prices. At the same time, ACH controls the profit per order to 5%, providing the most competitive prices.
Are the Products Genuine OEM Units?
Yes, all products from ACH are certified genuine OEM units. We acquire our inventory through official OEM channels and trusted third-party suppliers, ensuring every item is authentic and reliable.
How will you arrange shipment?
We'll handle the shipping for you. Through our partnerships, we can secure competitive rates with major carriers like FedEx, DHL, TNT, and UPS, ensuring a smooth and cost-effective delivery.
What is the warranty of goods?
One-year Warranty.
How long is the logistics cycle of the product?
Products are divided into spot and futures, and the delivery period of different brands of products is also different. For details, please contact the ACH business manager.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Agent,Importer,Trading Company
Year Established:
2012
Total Annual:
2000000-3000000
Employee Number:
>50
Ecer Certification：
Verified Supplier
A Decade of Global Excellence in Electromechanical Trade
ACH established in 2012 with offices in Shenzhen and Hong Kong, is a high-efficiency multi-brand distributor of industrial automation products.
We specialize in supplying world-leading brands such as Bradley,,E... A Decade of Global Excellence in Electromechanical Trade
ACH established in 2012 with offices in Shenzhen and Hong Kong, is a high-efficiency multi-brand distributor of industrial automation products.
We specialize in supplying world-leading brands such as Bradley,,E...
