ABB
ABB Relay Socket CR-M4SS
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Specifications
| Brand | ABB |
|---|---|
| Model Number | CR-M4SS |
| Official Product Name | Standard Socket for CR-M Miniature Relays (2 c/o or 4 c/o) |
| Applicable System | ABB CR-M pluggable interface relay range |
| Product Type | Relay Socket / Interface Relay Base |
| Equivalent Standard | CAN/CSA C22.2 No.14, IEC/EN 63000, IEC/EN 61984, UL 508 |
| Product Status | In Stock |
| Order Code | 1SVR405651R3000 |
| Rated Operational Voltage | 250 V |
| Rated Operational Current (AC-12, 230 V) | 7 A |
| Number of Contacts | 8 way (8 terminals) |
| Terminal Type | Screw terminals |
| Mounting | DIN rail snap-on / door or panel mount |
| Dimensions (W x H x D) | 27 mm x 42.5 mm x 82 mm |
| Product Net Weight | 0.07 kg |
| Connecting Capacity | Rigid 2x 20-14 AWG, flexible with ferrule 2x 20-16 AWG |
| Ambient Air Temperature | Operation -40 ... +70 °C, storage -40 ... +70 °C |
| Flammability | According to UL94 V-0 |
| Standards | CAN/CSA C22.2 No.14, IEC/EN 63000, IEC/EN 61984, UL 508 |
| EAN / GTIN | 4013614528675 |
| Function | Standard socket for CR-M miniature relays with 2 c/o or 4 c/o contacts |
Product Description
It carries the field wiring on screw terminals rated 250 V and 7 A, while the relay itself plugs in and can be swapped without disturbing the wiring, which greatly simplifies maintenance. The socket clips onto a DIN rail or mounts to a panel/door and uses 8 contacts to connect the relay coil and changeover contacts. Optional pluggable function modules, holders, and markers fit into it, so the same socket supports overvoltage protection, LED indication, and time-delay functions. The ABB CR-M4SS (order code 1SVR405651R3000) is the standard socket base for ABB CR-M miniature pluggable interface relays, accepting relays with either 2 c/o or 4 c/o (SPDT) output contacts.
Basic Product Information
- Screw terminals simplify wiring and allow the relay to be replaced without re-terminating field cables
- Rated operational voltage 250 V with a 7 A rating at 230 V AC (AC-12) for robust switching loads
- Snap-on DIN-rail mounting with the relay/socket combination, plus panel and door mounting options
- Operates over -40 to +70 °C and uses UL94 V-0 flame-retardant housing material
- Accepts both 2 c/o and 4 c/o (SPDT) ABB CR-M miniature interface relays for flexible panel design
Technical Specifications
Version & Model Difference
The CR-M4SS is the standard socket variant; ABB also offers a 'logic socket' variant of the CR-M range for different contact arrangements. It is designed to accept both 2 c/o and 4 c/o CR-M relays, so users should match the relay's pole configuration to their application while the socket stays the same. A matching CR-M4SS socket must be paired with a compatible CR-M relay part number, and optional pluggable modules such as the CR-P/M 92C varistor module may be fitted for protection.
Application Scenarios
- Control panel wiring where PLC output signals drive plug-in interface relays
- Machine control and process automation cabinets using DIN-rail relay banks
- Building automation and HVAC control systems requiring serviceable relay interfaces
- Relay replacement and maintenance jobs where the base socket stays wired while the relay is swapped
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Frequently Asked Questions
What relays does the ABB CR-M4SS socket accept?
It accepts ABB CR-M miniature pluggable interface relays with either 2 c/o or 4 c/o (SPDT) output contacts.
What is the voltage and current rating of the socket?
The socket has a rated operational voltage of 250 V and is rated 7 A at 230 V AC (AC-12).
Does the CR-M4SS come with a relay?
No. It is the socket/base only and is sold separately; order a compatible CR-M relay as well if you do not already have one.
How is the socket mounted?
It snaps onto a DIN rail together with the relay, and can also be mounted to a panel or door using the standard mounting options.
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