Description
- Model: ABB CT-APS.22 / 1SVR630180R3300
- Brand: ABB
- Series: CT-S Electronic Timer Relay
- Core Function: OFF-delay timing for industrial control circuits
- Product Type: Electronic timer relay
- Key Specs: 24–48 V DC / 24–240 V AC | 0.05 s–300 h | 2 C/O relay contacts
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | ABB |
| Model | CT-APS.22 |
| Order Code | 1SVR630180R3300 |
| Timer Function | Single-function OFF-delay with auxiliary voltage |
| Control Supply | 24–48 V DC; 24–240 V AC |
| Time Range | 0.05 s–300 h |
| Output | 2 C/O relay contacts, equivalent to 1 DPDT / 2 SPDT |
| Rated Operational Voltage | 250 V |
| Rated Current | 4 A AC12 at 230 V; 3 A AC15 at 230 V |
| Mounting | DIN rail, IEC/EN 60715 |
| Dimensions | 22.5 × 78 × 100 mm |
| Weight | 0.128 kg |
| Operating Temperature | -25 to +60 °C |
| Protection | IP50 enclosure / IP20 terminals |
| Connection | Screw terminals |
| Standards | IEC 61812-1, EN 61812-1 + A11; UL 508 and other listed approvals |
ABB CT-APS.22 1SVR630180R3300
The technical values above are taken from ABB’s CT-APS.22 data sheet.
Product Introduction
ABB CT-APS.22 (1SVR630180R3300) is an electronic OFF-delay timer relay for industrial control circuits. It accepts 24–48 V DC or 24–240 V AC control supply and provides two changeover relay contacts. Ten selectable timing ranges cover 0.05 s to 300 h.
The unit is designed for DIN-rail installation and uses front-face controls for time-range selection and fine adjustment. ABB specifies repeat accuracy of less than ±0.2% under constant conditions, making the device suitable where predictable delay timing is required.
Application Scenarios & Pain Points
A timer relay becomes important when a machine must remain energized for a defined period after a control signal disappears. The CT-APS.22 is specifically configured for this OFF-delay function: when the control input opens, timing starts while the output relay remains energized until the selected delay expires.
Typical Applications
- Motor control panels — delayed shutdown
Used where a cooling fan, lubrication pump, or auxiliary circuit must continue operating after the primary motor command is removed. - Industrial machinery — sequence control
The adjustable 0.05 s–300 h range allows the same timer architecture to handle short machine sequences as well as long process delays. - HVAC and ventilation systems — fan overrun
A ventilation circuit can remain active after the initiating signal disappears, then switch off after the configured delay. - Pump and process equipment — auxiliary run-on timing
Useful when an auxiliary device must continue running briefly after the main process command is removed. - Control cabinets — relay logic replacement
Its two changeover contacts provide separate NO/NC switching paths, which can reduce the need for additional auxiliary relays in simple timing circuits.
Engineering Note
The important detail is the control-input behavior. ABB specifies A1-Y1/B1 as a voltage-related triggering input. When that input opens, the OFF-delay begins; if it recloses before the timing period ends, the timer resets.
ABB CT-APS.22 1SVR630180R3300
Compatibility & Replacement Matrix
| Existing / Alternative | Compatibility | Engineering Note |
|---|---|---|
| ABB CT-APS.22 / 1SVR630180R3300 | Reference model | 24–48 V DC / 24–240 V AC; 2 C/O; OFF-delay |
| ABB CT-APS.21 / 1SVR630180R0300 | Not direct | Different supply configuration; verify the actual control voltage before substitution. ABB documentation identifies CT-APS.21 separately. |
| ABB CT-APS.12 / 1SVR630180R3100 | Not direct | Different order variant; wiring and supply characteristics must be checked against the installed unit. |
| ABB 1SVR730180R3300 / CT-APS.22S | Potential successor/alternative — verify | Current commercial listings show a CT-APS.22S variant with similar timing and supply characteristics, but terminal technology and dimensions differ; do not assume drop-in replacement. |
| Generic DIN-rail OFF-delay relay | Requires engineering review | Match supply voltage, timing ranges, contact configuration, contact ratings, terminal numbering, and control-input behavior. |
Replacement warning: Do not substitute a timer relay solely because the timing range appears similar. For this unit, the 24–48 V DC / 24–240 V AC supply range, A1-Y1/B1 control input, two changeover contacts, and terminal arrangement should be verified against the existing installation before energizing.
Inventory note: The ABB source identifies this exact order code as 1SVR630180R3300. Stock condition, production status, and warranty condition should be confirmed separately for the specific physical unit being offered.
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