DOLD AD 8851 – Latching relay
Latching relay
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Latching / interface / switching relays
31 productsInterface and coupling relays connect the low-power signals of a PLC or process computer to the higher-power circuits of a machine. Plug-in sockets on DIN rail make installation and replacement quick.
DOLD BA 7632 – Stepping relay
Stepping relay
- Wide voltage range AC/DC 24 … 230 V
- Energy-saving, no holding power required
- Defined switching position in the case of supply voltage failure
DOLD BA 7961 – Contact protection relay
Contact protection relay
- High electrical life of control contacts
- Longer maintenance intervals
DOLD CA 3056 – Interface relay
Interface relay
- As option goldplated contacts (5 μm Au) to switch low loads
- CA 3056 and CB 3056: Protective separation acc. to IEC/EN 61140, IEC/EN 60947-1: 6 kV / 2
DOLD CB 3056 – Interface relay
Interface relay
- As option goldplated contacts (5 μm Au) to switch low loads
- CA 3056 and CB 3056: Protective separation acc. to IEC/EN 61140, IEC/EN 60947-1: 6 kV / 2
DOLD CB 3057 – Interface relay
Interface relay
- Test possible without influence on PLC
DOLD CC 3056 – Interface relay
Interface relay
- As option goldplated contacts (5 μm Au) to switch low loads
- CA 3056 and CB 3056: Protective separation acc. to IEC/EN 61140, IEC/EN 60947-1: 6 kV / 2
DOLD IG 3051 – Interface relay
Interface relay
DOLD IK 3050 – Interface relay
Interface relay
- Suitable for switching low loads
- Compact design for installation systems and industrial distribution systems according to DIN 43880
DOLD IK 3070 – Interface relay
Interface relay
DOLD IK 3076 – Interface relay
Interface relay
- According to IEC/EN 60947-5-1, IEC/EN 61810-1
- Protective separation according to IEC/EN 61140, IEC/EN 60947-1 in configuration with 1 changeover contact
- With input wiring protection against voltage surges
- High permanent current Ith
DOLD IK 8701 – Input-Output interface relay
Input-Output interface relay
- Optionally contacts with up to a maximum 4 changeover contacts
- Optionally for 2-wire initiator activation
- Optionally for switching low loads
- Optionally for switching lamps with parallel compensation (e.g. HQ lamps)
- Optionally for switching large inductive direct current loads
DOLD IK 8802 – Interface relay
Interface relay
DOLD IL 8701 – Input-Output interface relay
Input-Output interface relay
- Optionally contacts with up to a maximum 4 changeover contacts
- Optionally for 2-wire initiator activation
- Optionally for switching low loads
- Optionally for switching lamps with parallel compensation (e.g. HQ lamps)
- Optionally for switching large inductive direct current loads
DOLD IN 8701 – Input-Output interface relay
Input-Output interface relay
- Optionally contacts with up to a maximum 4 changeover contacts
- Optionally for 2-wire initiator activation
- Optionally for switching low loads
- Optionally for switching lamps with parallel compensation (e.g. HQ lamps)
- Optionally for switching large inductive direct current loads
DOLD MK 3046 – Interface relay
Interface relay
- According to IEC/EN 60947-5-1
- Compact version with 3 or 2 separate controllable relay systems
DOLD MK 3047 – Interface relay
Interface relay
DOLD MK 8804N – Interface relay
Interface relay
- Up to 4 changeover contacts in 22,5 mm width
- With various terminals
DOLD MK 8852 – Latching relay
Latching relay
- Energy saving, no holding capacity required
- Manual switching by manual actuator possible
- Switching position visible from outside
DOLD ML 3045 – Interface relay
Interface relay
- For 2 control voltages
- Output relay can be switched off via switch for test purposes
- Optionally safe separation according to IEC/EN 61140, IEC/EN 60 947-1 and for switching low loads
DOLD ML 3059 – Interface relay
Interface relay
- 1 or 2 changeover contacts
- Optionally safe separation according to IEC/EN 61 140, IEC/EN 60 947-1, 6 kV/2- Between coil and contacts- Between the two contacts
- Optionally for switching of low loads
DOLD UG 3076/007 – Interface relay
Interface relay
- According to IEC/EN 60947-5-1
- Reliable fast response
- Simple contact multiplication
- Cost and space saving alternative compared to contactors
- With plugable terminal blocks for easy exchange of devices
DOLD UG 5122 – Diode module
Diode module
- Protects up to 8 contacts when switching inductive DC loads
- High dielectric strength
- Ready for mounting in switching cabinets
- Pluggable clamps allow a fast module change
- Unique design with UG- switching devices
DOLD UG 8851 – Latching relay
Latching relay
- Large voltage range AC/DC 24 … 240 V
- Protection against manipulation by sealable transparent cover over setting switches
- More contacts at small design
- Energy saving, no holding capacity neccessary
Interface and latching relays linking PLC logic to machine power circuits
Control electronics running on extra-low voltage draw very little power, but the motors, magnetic clutches and hydraulic cylinders they command still need a lot of electrical energy. DOLD's latching, interface (coupling) and switching relays bridge that gap. They connect the sensitive logic side of a PLC, controller or process computer with the machine's power circuits, and they provide protective separation between the two.
DOLD positions these relays for interface tasks in demanding control systems. They plug into snap-on sockets on top-hat (DIN) rail, which keeps installation and maintenance quick. They are not sensitive to overcurrent or overloads, and at medium to low switching frequencies they cost considerably less than semiconductor solutions, which makes them a sensible default for many cabinet designs.
The UG 8851 latching relay accepts a wide AC/DC nominal voltage range. A pulse of a few milliseconds sets it to a defined contact position, and no energy is needed to hold it on, which lowers power dissipation. If supply is lost, the relay keeps its position. Its forcibly guided contacts to IEC 61810-3 allow the contact state to be monitored safely.
- Interface between PLC logic level and machine power level
- Protective separation between control and load circuits
- Snap-on plug-in sockets for top-hat rail
- Insensitive to overcurrent and overloads
- UG 8851 latching relay holds position without power
- UG 8851 has forcibly guided contacts per IEC 61810-3
