Overview
Configured for 24 VDC discrete output field circuit termination in the DeltaV S-Series I/O system, the Emerson KC4011X1-BQ1 (KC4011X1-BQ1 Simplex DO 40-Pin Mass Terminal Block) provides direct electrical connection between I/O cards and field devices.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | KC4011X1-BQ1 |
| Brand | Emerson |
| Origin | United States |
| Weight | Not specified |
| Dimensions | Not specified |
| Operating Temp | -40 deg C to +70 deg C |
| Power Consumption | Field circuit supply: 24 VDC at 100 mA/channel |
| Product Type | Simplex Digital Output Terminal Blocks |
| Terminal Configuration | 40-Pin Mass Terminal Block |
| System Platform | DeltaV S-Series I/O System |
| Hazardous Area Certification | II 3G Ex ec IIC Gc; FM Class I Div. 2 Groups A, B, C, D |
| Hazardous Area Standards | FM19ATEX0173U, IECEx FMG 19.0019U, FM21UKEX0017U, FM17CA0145U, FM17US0286U |
| Terminal Block Key Position | B4 |
| Relative Humidity | 5 to 95% non-condensing |
| Shock Resistance | 10 g half-sine wave for 11 ms |
| Vibration Resistance | 1 mm peak to peak from 2 to 13.2 Hz; 0.7 g from 13.2 to 150 Hz |
| Airborne Contaminants | ISA-S71.04-1985 Airborne Contaminants Class G3 |
DeltaV S-Series Digital Output Termination Interface
The KC4011X1-BQ1 provides a physical termination interface for simplex digital output applications within the Emerson DeltaV S-Series architecture. It connects field wiring to the corresponding I/O card while maintaining the required terminal assignment through the rotary keying mechanism.
The terminal block supports 24 VDC field circuits with a maximum field current specification of 100 mA per channel. In addition, the keyed interface prevents incorrect pairing between the terminal block and incompatible I/O cards after installation.
The module design supports hazardous area installations with Ex ec protection and Class I Division 2 certifications. Therefore, installation procedures must follow the DeltaV Zone 2 installation requirements and applicable hazardous location guidelines.
Channel Termination and Keying Control
The KC4011X1-BQ1 uses a 40-pin mass terminal connection method for simplex digital output wiring. The rotary keying system defines compatibility between the terminal block and the assigned I/O card.
The terminal keys must be configured before operation. Furthermore, the terminal block prevents unauthorized replacement with a different I/O card type by maintaining mechanical identification between connected components.
Frequently Asked Questions
Q: Can the KC4011X1-BQ1 terminal block be removed while system power is applied?
A: The terminal block can be added or removed with system power applied only when no I/O card is installed and no field wiring is connected.
Q: Does the KC4011X1-BQ1 require user calibration or internal adjustment?
A: No. The unit contains no user serviceable parts, and calibration is not required during normal operation.
Q: How does the terminal block prevent incorrect I/O card installation?
A: The rotary keying system sets compatibility between the terminal block and the assigned I/O card, preventing mismatched installation after configuration.
Field Installation Guidelines
- Verify that the terminal block key position matches the designated DeltaV I/O card before installation.
- Confirm that no field wiring is connected before removing or inserting the terminal block under powered conditions.
- Install the unit according to DeltaV S-Series and CHARMs Hardware Installation procedures for hazardous area applications.
- Maintain field wiring separation according to site electrical installation practices and hazardous area requirements.
- Inspect terminal connections for correct conductor placement and secure mechanical fastening before energizing field circuits.
- Do not disassemble the terminal block because it contains no user-serviceable components.
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