Products / DCC-I
Rack mount Automatic transfer switch
DCC-I
A 1U electromechanical transfer switch for less critical single-phase racks, built on patented MagLatch latching relays.
Made in the USA with U.S. and imported parts
Current rating12–24 A
3 standard ratings. 100% continuous duty.
Voltage100–240 V
Single phase, 50 Hz or 60 Hz.
Switched poles2
Both conductors are switched.
Transfer time< ½ cycle
MagLatch relays, in phase or out of phase.
Ratings
| Type | Automatic transfer switch (ATS) |
|---|---|
| Mounting | Rack mount |
| Phase and poles | Single-phase 2-pole |
| Voltages | 240 V230 V220 V208 V200 V120 V100 V |
| Current ratings | 12 A16 A24 A |
| Frequency | 50 Hz or 60 Hz |
What it does
- Patented MagLatch relays: a permanent magnet holds the contacts in either position, with no return spring and no holding current
- Transfers in under half a cycle, in phase or out of phase
- 1U rack height
- Remote summary and service alarm contacts; Modbus RTU via RS-485 option
- Waveform capture of the last transfer, standard on every unit
- TÜV certified to UL and IEC 60950; CE marked
Reading the model number
Format D1-FVVVAA-C-I, for example D1-624024-R-L630
D1Base model
FFrequency: 6 = 60 Hz, 5 = 50 Hz
VVVVoltage, e.g. 208
AACurrent, e.g. 24 = 24 A
CComms: R remote contacts, C Modbus RTU via RS-485
IConnectors: NEMA L5/L6 15–30 A, C13 or C19
Specifications
Transfer
| Sense and transfer time | < ½ cycle, at all source phase angles |
|---|---|
| Reliability | Patented MagLatch technology provides reliability similar to solid state switching |
Bypass
| Maintenance bypass | None |
|---|
Controls and monitoring
| Panel indicators | Mimic bus diagram; power flow LEDs; source available, preferred, on-source; summary and service alarm LEDs |
|---|---|
| Panel controls | Preferred source select, alarm silence |
| Remote contacts | Summary alarm, service alarm (standard) |
| Communications | Options: Modbus RTU via RS-485 (status and metering: V, I, pf, f, kW, transfer count); event data logger |
| Diagnostics | Waveform capture of the last transfer (standard) |
| User settings | Over/under voltage, phase angle for manual transfer, default preferred, manual transfer on/off, auto-retransfer on/off, preferred-select button on/off, audible alarm on/off |
| Protection logic | Anti-cross-connection logic; Power Quality Seeking (good / marginal / unacceptable bands); redundant logic supplies |
Connections
| Input and output | 4 ft input and output cords with plugs and sockets (North America); cords only elsewhere |
|---|
Protection
| Short-circuit rating | 10 kA withstand (see user manual) |
|---|
Mechanical
| Dimensions H × W × D | 1.75 × 19 × 13 in (44.5 × 483 × 330 mm) |
|---|---|
| Weight | 13 lb (5.9 kg) |
| Cooling | Convection |
Environment
| Operating temperature | 32–104 °F (0–40 °C) |
|---|---|
| Humidity | 0–95% non-condensing |
Compliance
| Certifications | TÜV certified to UL and IEC 60950; CE marked |
|---|---|
| Patent | MagLatch, US 7,535,129 |
| Standard warranty | 12 months from start-up or 18 months from shipment, whichever is sooner |
Installation
| Rack mounting | Use a rack shelf and cable strain relief where the unit weight exceeds the two-post mounting capacity of the rack. |
|---|
Specifications are subject to change without notice. Wire sizes and installation details: ask our engineers.
