Emerson KJ2201X1-JA1 DeltaV SIS SLS Redundant Terminal Block
The redundant SLS terminal block for DeltaV SIS logic-solver hardware and controlled safety-loop wiring.
Product Profile
KJ2201X1-JA1 is an Emerson DeltaV SIS SLS Redundant Terminal Block. It provides the terminal arrangement used with redundant SLS logic-solver hardware in a safety instrumented system.
The unit is rated for 30 VDC input circuits. Emerson specifies maximum current by terminal path and requires power removal before insertion or removal. The terminal block contains no user-serviceable parts and does not require calibration.
Technical Data
| Manufacturer | Emerson |
|---|---|
| Exact Model | KJ2201X1-JA1 |
| Product Family | DeltaV SIS SLS hardware |
| Product Type | SLS Redundant Terminal Block |
| Input Power | 30 VDC |
| Maximum A–B Current | 30 mA per channel |
| Maximum A–C Current | 1 A per channel |
| Ambient Temperature | -40 to +70 °C |
| Relative Humidity | 5–95%, non-condensing |
| Shock | 10 g half-sine wave for 11 ms |
| Vibration | 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 Class G3 |
| Hazardous-Area Context | Specific Zone 2 / Class I instructions apply |
| Service Rule | Do not remove or insert with system power energized |
| Maintenance | No user-serviceable parts; calibration not required |
System Role
Provides redundant SLS field termination for the documented DeltaV SIS hardware arrangement.
Separates the lower-current A–B path from the higher-current A–C terminal path.
Supports hazardous-area installations when the specified power and handling rules are followed.
Keeps safety-loop conductors associated with one exact JA1 terminal identity.
Compatibility
- Match KJ2201X1-JA1 to the paired SLS hardware, carrier and approved DeltaV SIS release.
- Confirm each field circuit uses the correct A–B or A–C path and stays within its limit.
- Record terminal numbers, wire tags, shielding, grounding and hazardous-area classification.
- Do not interchange simplex and redundant SLS terminal blocks by appearance.
Applications
- Redundant SLS logic-solver termination in DeltaV SIS cabinets.
- Safety-loop field wiring that follows the documented 30 VDC channel limits.
- Zone 2 or Class I installations covered by the specified installation instructions.
FAQ
Can KJ2201X1-JA1 be removed while the SIS remains energized?
No. Emerson states that this unit cannot be inserted or removed with system power energized.
What identifies the correct circuit path on KJ2201X1-JA1?
Use the terminal designations and loop drawing; A–B and A–C paths have different maximum channel currents.
Does KJ2201X1-JA1 require calibration after replacement?
No calibration is specified, but wiring inspection and complete safety-loop validation are still required.
What hardware must match KJ2201X1-JA1?
Confirm the redundant SLS logic-solver set, carrier, DeltaV SIS release and certified installation arrangement.
How should a replacement KJ2201X1-JA1 be accepted?
Verify wiring and diagnostics, then perform the approved end-to-end proof test for every affected safety function.
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