0–380 VDC load range
No minimum load voltage is required within the published range.
SLO48CRA5
DC input, DC load — 5 A signal relay
Nominal input
48 V DC
Load voltage
300 V DC
Load current
5 A
Warranty
10 years
MTTF
137 years
46,10 €
Manufacturer's recommended price. Delivery terms: EXW Nummela, Finland.
10-year warranty
ISO 9001:2015
Technical specifications
Main data
| Nominal input voltage | 48 V DC |
|---|---|
| Nominal load voltage | 300 V DC |
| Rated load current | 5 A |
| Contact type | N/O, solid state |
| Coil type | DC |
| Load circuit | DC |
| EAN / GTIN | 6410027185828 |
| Application | For inductive loads and high DC voltages |
Why choose SLO48CRA5
Built for a defined industrial duty
Use SLO48CRA5 when a nominal 48 VDC controller output must switch a DC load without mechanical contacts. The relay combines pulse-transformer isolation, no minimum load requirement and a fast solid-state output in a replaceable SL-series package.
5 A rated load current
A defined continuous-current rating subject to temperature and bank-mounting derating.
L/R 50 ms capability
Published at 24 V / 5 A for demanding inductive DC loads.
4,600 VAC RMS isolation
One-second input/output test voltage with 8 mm air and creepage distance.
Application guidance
Use it where its strengths matter
Suitable applications
- High-voltage DC control circuits
- DC contactors, solenoids and valves within the published limits
- Inductive DC loads verified against the L/R rating
- Applications requiring a replaceable, contactless output relay
Check before selection
- The nominal input is 48 VDC; verify the actual controller signal against the 30 VDC turn-on and 20 VDC turn-off thresholds.
- Rated load current is 5 A, subject to temperature, duty cycle and bank-mounting derating.
- Confirm inductive energy and surge current against the 20 A / 10 ms limit and use suitable suppression.
- Use a correctly rated fast fuse and follow the datasheet cooling and horizontal-rail guidance.
Delcon design advantage: the control command crosses a pulse-transformer isolation barrier instead of an optocoupler. See how Delcon technology works →
Complete the assembly
Related products and variants
MOS1GNDIN-rail socket, screw terminalsMOS1CCNDIN-rail socket, spring terminalsSLO24CRA524 VDC control-input alternativeMBS16BIOP16-channel PLC Fast Connect mounting base
For multi-channel assemblies, select the mounting base, relay, cable and PLC adapter as one verified system. Delcon can also design custom cables and adapters for other PLC, DCS and remote-I/O systems.
Engineering resources
Datasheet and 3D model
Frequently asked questions
SLO48CRA5 selection basics
What control signal does SLO48CRA5 require?
It is designed for a nominal 48 VDC input. The datasheet specifies 30 VDC turn-on and 20 VDC turn-off thresholds.
Can it switch inductive DC loads?
Yes, within the published limits. The datasheet specifies a maximum inductive load of L/R 50 ms at 24 V / 5 A; the real load, surge and suppression still need to be verified.
Does it require a minimum load?
No. The datasheet specifies 0–380 VDC and 0–5 A load ranges with no minimum load requirement.
Which socket should be used?
Use MOS1GN for screw terminals or MOS1CCN for spring terminals. Confirm the complete relay, socket, cooling and protection arrangement.
✓ Source: SLO48CRA5 datasheet · Technically reviewed by Delcon Oy · Review date: 7 October 2026
Confirm SLO48CRA5 against your 48 VDC control signal and DC load.
Send Delcon the control voltage, load data, switching frequency, protection and installation conditions.