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- Overview
- Specifications
- Description
- Applications
- Features
- FAQ
- Recommended Products
Overview
Place of Origin: |
USA |
Brand Name: |
ICS TRIPLEX |
Model Number: |
T8451C |
Packaging Details: |
Original new Factory Sealed |
Delivery Time: |
5-7 days |
Payment Terms: |
T/T |
Supply Ability: |
In stock |
Specifications
|
Parameter |
Value |
|
Part Number |
T8451C |
|
Part Name |
Trusted TMR 24Vdc Digital Output Module |
|
Dimensions |
3 × 30.2 × 26.3 cm |
|
Weight |
1.26 kg |
|
Number of Output Channels |
40 channels |
|
Independent Power Groups |
5 groups × 8 outputs each |
|
Circuit Type |
Fault tolerant, fully triplicated with optional line monitoring |
|
Field Common Isolation (Sustained Working) |
±250 Vdc |
|
Field Common Isolation (Maximum Withstanding) |
±2.5 kVdc |
|
Output Voltage Field Supply Range |
0 to 36 Vdc |
|
Maximum Withstanding Voltage |
-1 to 60 Vdc |
|
Output Current Rating (Continuous) |
2 A per channel |
|
Output Off-State Resistance (Leakage) |
33 kΩ |
|
Power Consumption (1 A per channel) |
24 W |
|
Output Turn-On / Turn-Off Delay |
0.5 ms |
|
Self-Test Interval |
2 minutes |
|
Output Short Circuit Protection |
Automatic |
|
Fusing |
Not required |
|
Intrinsic Safety |
External barrier required |
|
Operating Temperature |
-5°C to +60°C (23°F to +140°F) |
|
Operating Humidity |
5–95% RH (non-condensing) |
|
Vibration Resistance |
10–57 Hz ±0.075 mm; 57–150 Hz 1.0 g |
|
Shock Resistance |
15 g, half sine wave, 11 ms |
|
ESD (Air Discharge) |
Up to 15 kV |
|
ESD (Contact Discharge) |
Up to 8 kV |
|
Radiated Immunity |
10 V/m, 27 MHz to 500 MHz |
|
Transient / Burst Immunity |
2 kV, 2.5 kHz for 60 seconds |
Description
The ICS Triplex T8451 is a Trusted TMR 24V DC Digital Output Module with 40 channels, designed for mission-critical safety applications. Featuring high availability, fault tolerance, and automatic diagnostics, it ensures fail-safe operation in demanding industrial environments.
Applications
Oil & Gas: Controls ESD valves and wellhead safety with TMR fault tolerance to avoid false trips.
Petrochemical Refineries: Handles high-risk outputs and drives relays in strong EMI environments.
Offshore Platforms: Controls fire and gas alarms in harsh, high-vibration conditions.
Nuclear Plants: Ensures safe protection with high isolation and short-circuit protection.
Coal Gasification: Drives fast solenoid valves with self-diagnostics for safe explosive-area control.
Features
40 TMR output channels per module
Five isolated groups of eight outputs
Six-element voted output array
Comprehensive diagnostics and self-test
First fault tolerant, second fault fail-safe
Per-channel line monitoring
Automatic over-current protection
2500V dc opto-isolation
Hot replaceable design
FAQ
Q: How are channels and power groups structured in the T8451C digital output module?
A: It has 40 output channels divided into 5 isolated power groups, each with 8 outputs.
Q: What are the isolation voltage and maximum withstand limits of the T8451C module?
A: It supports ±250V dc continuous isolation and ±2.5kV dc surge withstand, with 0–36V dc field range and -1 to 60V dc max tolerance.
Q: What is the power performance of the T8451C module under 1A per channel load?
A: At 1A per channel, typical power consumption is 24W, with up to 2A maximum per channel.
Q: What are the switching delay and self-test cycle of the T8451C safety module?
A: Output switching delay is 0.5ms, with a 2-minute automatic self-test cycle.
Q: What is the ESD immunity level of the T8451C module under EMI conditions?
A: It withstands 15kV air discharge and 8kV contact discharge per IEC 801 standards.
