Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | CT-APS.22 |
| ABB Order Code | 1SVR630180R3300 |
| Product Family | CT-S |
| Product Type | Electronic OFF-delay time relay |
| Control Supply | 24–48 VDC / 24–240 VAC |
| Time Ranges | 0.05 s to 300 h |
| Timer Function | OFF-delay |
| Output | 2 c/o contacts |
| Contact Configuration | SPDT × 2 |
| Control Input | Voltage-related triggering |
| Rated Operational Voltage | 250 VAC |
| AC12 Rating | 4 A at 230 VAC |
| AC15 Rating | 3 A at 230 VAC |
| DC12 Rating | 4 A at 24 VDC |
| DC13 Rating | 2 A at 24 VDC |
| Mechanical Life | 30 × 10⁶ switching cycles |
| Electrical Life | 0.1 × 10⁶ cycles at AC12, 230 V, 4 A |
| Mounting | DIN rail, IEC/EN 60715 |
| Dimensions | 22.5 × 78 × 100 mm |
| Protection | IP50 enclosure / IP20 terminals |
| Operating Temperature | -25 to +60°C |
| Storage Temperature | -40 to +85°C |
| Weight | Approx. 0.128 kg |
ABB’s original data sheet identifies 1SVR630180R3300 as CT-APS.22 and specifies the 24–48 VDC / 24–240 VAC control supply, 0.05-second to 300-hour range, two changeover contacts, and voltage-related triggering. The same ABB documentation provides the contact ratings, DIN-rail mounting, dimensions, protection class, and environmental limits.
Product Introduction
The ABB CT-APS.22 1SVR630180R3300 is a single-function electronic time relay from ABB’s CT-S timer family. Its function is OFF-delay timing, meaning the output contacts remain energized for the selected delay period after the triggering condition is removed. Ten selectable timing ranges cover applications from 0.05 seconds through 300 hours. Two changeover contacts provide separate switching paths for control logic.
For plant maintenance, this is a useful component where timing must be implemented directly in a control circuit rather than in PLC software. The wide control-supply range allows the same relay to be used with either 24–48 VDC or 24–240 VAC control power. The 22.5 mm DIN-rail format also makes it suitable for conventional control cabinets and relay panels.
CT-APS.22 1SVR630180R3300
Application Scenarios & Field Pitfalls
Engineering Pain Point
The CT-APS.22 is often encountered in older control cabinets where a timing function was implemented with a dedicated relay instead of PLC logic. During replacement, the critical issue is matching the OFF-delay function, trigger method, contact arrangement, and actual load current rather than simply finding a timer with the same supply voltage.
Typical Applications
- Motor control panels: maintaining auxiliary circuits or contactor control for a defined period after a stop command.
- Pump and fan systems: delayed shutdown of auxiliary equipment or ventilation circuits.
- Machine automation: sequencing valves, contactors, brakes, and other discrete actuators.
- Industrial control cabinets: providing hardware-based delay functions independently of PLC scan logic.
Technical Pitfalls to Avoid
- Do not confuse OFF-delay with ON-delay. CT-APS.22 is specifically an OFF-delay timer. Its timing action occurs when the triggering condition is removed.
- Check the actual contact load. The 2 c/o outputs are rated at 4 A for AC12 at 230 VAC, but the permitted current changes with utilization category and inductive loading. For DC13, the documented rating is 2 A at 24 VDC.
- Verify the trigger circuit. The control input uses voltage-related, non-floating triggering. A replacement with a different trigger architecture may require rewiring even if its supply voltage and timing range appear similar.
- Do not confuse CT-APS.22 with CT-APS.22S. ABB later catalog material uses CT-APS.22S / 1SVR730180R3300 for a related CT-S OFF-delay timer. The part number supplied here is specifically 1SVR630180R3300, so the complete order code should be matched before substitution.
Related Products
- CT-APS.21 — Related CT-S OFF-delay timer variant with a different contact/output configuration; verify the exact control voltage and output arrangement before substitution.
- CT-APS.12 — Another CT-APS family variant; the suffix determines the electrical configuration, so it should not be treated as a direct replacement without checking the circuit.
- CT-APS.22S — 1SVR730180R3300 — Later ABB CT-S version with the same general OFF-delay concept and 2 c/o outputs; the catalog number is different and should be ordered by exact part number.
- CT-ERS.22 — 1SVR630100R3300 — CT-S timer from a different timing-function family; useful for comparison when reviewing an existing control circuit.
- CT-MVS.22 — 1SVR630020R3300 — Another CT-S timing relay variant with different functional characteristics.
- CT-MXS.22 — 1SVR630030R3300 — Related electronic timer family member; not an automatic substitute for CT-APS.22.
- ADP.01 — 1SVR430029R0100 — ABB panel-mount adapter accessory for the 22.5 mm housing.
- COV.01 — 1SVR430005R0100 — Sealable transparent cover accessory for protecting timer settings from unauthorized adjustment.
Procurement Check
For ABB CT-APS.22 1SVR630180R3300, verify the complete order code, OFF-delay requirement, control supply, timing range, trigger wiring, and load connected to each changeover contact.
The safest procurement description is:
ABB CT-APS.22, 1SVR630180R3300, CT-S electronic OFF-delay time relay, 24–48 VDC / 24–240 VAC, 2 c/o contacts, 0.05 s–300 h.
