Our advantage
Global Logistics
We have a 10-year logistics and express cooperation agreement, so our products can be shipped to any place in the world.
Brand new and original
Our products are imported in bulk from the place of origin. Because of the cooperative relationship, our products are all original and 100% new.
24-hour service
We provide 7*24 hours service to our customers. We will be there whenever you need us.
Price advantage
All our products are priced very favorably because we have our own warehouse and supply.
| Company Information | |||
| [email protected] | |||
| Mobile | +8615980777398 | ||
| +8615980777398 | |||
| 15980777398 |

The Emerson KL4502X1-MA1 CHARM Relay Output Terminal Block is a terminal interface component designed for Emerson DeltaV Electronic Marshalling systems. It provides the connection point between relay output CHARM modules and field devices, allowing reliable switching control for industrial equipment such as valves, motors, and other process control devices.
DeltaV Electronic Marshalling Systems
Used with Emerson DeltaV CHARM architecture for relay output signal connection.
Industrial Equipment Control
Supports switching control of field devices including actuators, valves, and external control circuits.
Process Automation Systems
Applied in chemical, energy, oil and gas, and manufacturing control environments.
Control Cabinet Installation
Provides organized wiring and connection management inside automation cabinets.
Reliable Relay Output Connection
Provides stable electrical connection between CHARM output modules and field equipment.
Flexible Field Device Control
Supports integration with various industrial switching applications.
Simplified Wiring Architecture
Helps reduce complex cabinet wiring and improves system organization.
Easy Maintenance and Replacement
Allows efficient servicing of DeltaV I/O systems.
Stable Industrial Performance
Designed for continuous operation in demanding process automation environments.
| Parameter | Specification |
|---|---|
| Model | KL4502X1-MA1 |
| Brand | Emerson |
| Product Type | CHARM Relay Output Terminal Block |
| System Platform | DeltaV Electronic Marshalling |
| Application | Relay Output Connection |
| Dimensions | 120 × 12 × 70 mm |
| Weight | 0.14 kg |
| Component | Main Function |
|---|---|
| Emerson DeltaV Relay Output CHARM | Provides digital output control signals |
| DeltaV CHARM Baseplate | Provides module mounting support |
| DeltaV Controller | Executes automation control logic |
| Field Actuators | Receive control output signals |
| Solenoid Valves | Perform process control actions |
| Industrial Relays | Provide switching functions |
1. What is the Emerson KL4502X1-MA1 used for?
The KL4502X1-MA1 is a relay output terminal block used to connect DeltaV CHARM output modules with external field devices requiring switching control.
2. What type of devices can be controlled through this terminal block?
It can be used with industrial devices such as valves, actuators, relays, and other equipment requiring relay output signals.
3. What is the advantage of using a CHARM relay terminal block?
It simplifies field wiring and provides a flexible connection method within the DeltaV Electronic Marshalling system.
4. What problems may occur if the terminal block fails?
A faulty terminal block may cause output signal interruption, incorrect device operation, or loss of communication between the control system and field equipment.
5. What should be checked before replacing the KL4502X1-MA1?
The CHARM module type, wiring configuration, field device requirements, terminal compatibility, and DeltaV system setup should be confirmed before replacement.
| Model / Series | Product Type | Recommended Application |
|---|---|---|
| Emerson KL4502X1-MA1 | Relay Output Terminal Block | Relay control applications |
| Emerson KL4502X1-LA1 | CHARM Terminal | General CHARM module connection |
| Emerson KL4502X1-BA1 | Standard CHARM Terminal | Standard field signal connection |
| Emerson KL3002X1 Series | Digital Output CHARM | 24VDC output control |
| Emerson KL3003X1 Series | Digital Input CHARM | Dry contact signal monitoring |
| Component | Main Application |
|---|---|
| Relay Output Terminal Blocks | Field device switching control |
| Digital Output CHARMs | Control signal output |
| Digital Input CHARMs | Equipment status monitoring |
| CHARM Terminal Blocks | Module and field wiring connection |
| DeltaV Controllers | Process control execution |
| Communication Modules | System data exchange |