Featured Products
Off-delay timer relay with auxiliary voltage (BC7933) Off-delay of 0.5 s to 60 min configurable (depending on type) With auxiliary voltage (nomi...
Emergency Stop Module, BD5935.48 Machine emergency stop switches Monitoring sliding grill guards SK 4 (with...
MK 9151 - level relay The MK9151 is used for Level monitoring and control of conductive liquids and powde...
IK9169 phase monitor, IK9168 phase monitor display Detection of phase failure in three-phase systems Single...
IK9179 three-phase monitor and IK9178 display Monitoring of three-phase systems for direction of rotation N...
IL9151 - level relay with two separately operating changeovers The IL9151 is used for Level monitoring an...
LG 5925 - Emergency stop module, LG 5929 - Expansion module Applications Emergency stop and expansion modules for - Machine emergency stop swit...
Popular Categories For Dold
Categories For Dold
Popular Items
Popular items
BC7933N.81 AC/DC24V 5-100S, Dold
Off-delay timer relay with auxiliary voltage (BC7933)
Off-delay of 0.5 s to 60 min configurable (depending on type)
With auxiliary voltage (nominal voltage)
110 AC → 240 V or 24 Vac / Vdc (depending on type)
Control input B1 can be controlled with nominal voltage; no volt-free control contact required
LED indicator for contact position
1 changeover
Time circuit
Time ranges t
1
depending on type:
0.5 → 10 s, or 5 → 100 s
or 0.5 → 10 min, or 3 → 60 min
Time setting:
Continuous 1:20
Minimum connection time o nB1
AC: 15 ms, DC: 5 ms
Reactivation time:
≤50 ms
Repeat accuracy:
≤0 .5 % + 10 ms
Input
Nominal voltage U
H
(A1 / A2, B1 / B2):
110 AC → 240 V, 50 / 60 Hz
Depending on type:
or 24 Vac / Vdc
Auxiliary voltage range:
0.8 → 1.1 U
H
for AC
0.9 → 1.25 U
H
for DC
Release voltage to B1:
≥15 % U
N
Output
Contact assignment:
1 changeover
Thermal current I
th
:
4 A
General data
Rated operating current type:
Continuous
Temperature range:
-20 → +60 °C
Leiteranschluß:
2 x 2.5 mm
2
solid or
2 x 1.5 mm
2
with sleeve
Device dimensions (W x H x D):
22.5 x 84 x 97 mm
Standards
Complies with DIN EN 61 812-1
Popular items
Popular items
Popular items
Popular items
Popular items
MK9040N.12/001 3AC50/60Hz 400V, Dold
MK 9040N - Asymmetry relay
Detects voltage asymmetry, phase loss, reverse voltage and phase sequence
Impervious to symmetrical harmonics up to distortion factor of K 20 %
2 LED displays for voltage supply and contact position
Output contact 2 changeovers
Overall width: 22.5 mm
For monitoring three-phase networks, e.g. lifts, escalators, hoisting systems, etc.
Input
Nominal voltage U
N
:
400 Vac, 3-phase
Voltage range:
0.8 → 1.1 U
N
Nominal frequency:
50 / 60 Hz
Nominal consumption:
approx. 4.8 VA
Output
Contact assignment:
2 changeovers
Response/fallback time:
≤1 s / ≤250 ms
Thermal current:
6A
Switching capacity (as per AC-15):
- NO contact
3 A @ 230 Vac
- NC contact
1 A @ 230 Vac
General data:
Rated operating current type:
Continuous
Mounting:
DIN Track
Temperature range:
-20 °C → +60 °C
Device dimensions (W x H x D):
22.5 x 90 x 100 mm
Weight:
145 g
Phase Sequence/Failure Relays
Monitoring of 3 phase supplies
Orange housing manufactured to DIN 43 880
DIN rail mount
Popular items
LG5924.02/61 DC24V, Dold
LG5924 - Emergency stop module
Emergency stop relay compliant with the EC Directive on machines 98/37/EC
1-channel configuration
LED status display
Short circuit detection between terminal Y1 and earth
Overall width of 22.5 mm
Applications
Protection of persons and machines
Machine emergency stop switches
Approvals
CE
Standards
IEC/EN 60204-1, VDE 0113 Part 1 (1998-11)
Popular items
IK9178 3AC50/60Hz 400V, Dold
IK9179 three-phase monitor and IK9178 display
Monitoring of three-phase systems for direction of rotation
No auxiliary voltage
LED display lights up when a clockwise rotation field is detected
17.5 mm overall width
In accordance with IEC 255, VDE 0435 Section 303
Additional function on IK9179 three-phase monitor
Output 1 changeover contact for control purposes
Input
Nominal voltage U
N
:
3 AC 400 V
Voltage range:
0.8 → 1.1 U
N
Frequency range:
45 → 65 Hz
Output (IK9179 only)
Contact assignment:
1 changeover
Thermal current I
th
4 A
General data
Rated operating current type:
Continuous operation
Temperature range:
-20 °C → +60 °C
Wire connection solid/stranded with sleeve:
2 x 2.5 mm
2
/ 2 x 1.5 mm
2
Device dimensions (W x H x D):
17.5 x 90 x 59 mm
Phase Sequence/Failure Relays
Monitoring of 3 phase supplies
Orange housing manufactured to DIN 43 880
DIN rail mount
Popular items
MK9052.11 AC50/60Hz 230V, Dold
MK9052 - Thermistor motor protection relay
1 input for thermistors or bi-metallic contacts
Wire breakage detection in the sensor circuit
LED for switching status
Rest current principle
1 changeover
22.5 mm overall width
The MK9052 motor protection relay is used to prevent thermal overloads in motors (for example as caused by high switching frequencies, heavy start-up loads, single phase operation, interrupted cooling, high ambient temperature).
Special thermistors (PTC resistors) developed specifically for motor protection are used as temperature sensors. Up to 6 sensors can be switched in sequence; when a fixed resistance level is reached, they cause the output relay of the MK9052 to de-energise.
Input
Response value/fallback value:
≥3 kΩ / ≤1.8 kΩ
Measuring circuit load/voltage
Approx. 1 mW / 1.2 V (R=1.5 kΩ)
Auxiliary voltage U
H
230 Vac, 50 / 60 Hz or 24 Vdc
Voltage range U
H
0.9 → 1.1 U
H
Output
Contact assignment
1 changeover
Response/fallback delay
Thermal current
5 A
Switching capacity
3 A (as per AC 11, AC 230 V)
Voltage range U
H
0.9 → 1.1 U
H
Popular items
MK9151.11 2-450kOhm DC24V, Dold
MK 9151 - level relay
The MK9151 is used for
Level monitoring and control of conductive liquids and powders, e.g. maximum and minimum fill level, protection against overfilling and dry running
Monitoring and control of the mix ratio for conductive liquids
General resistance monitoring, e.g. recording temperature limits with PTC (device to IEG 255, VDE 0435 section 303)
Features
3 electrode connections for 2-point and 1-point level control
The metering circuit galvanically isolated from the mains is immune from high levels of interference
Max. lead length to the electrodes: 1500 m
Wide setting range: 2 → 450 kΩ which enables differentiation between liquid and foam
Adjustable response and fallback delay: 0.2 → 20 s
Programmable for working current principle (without bridge) or rest current principle (X1-X2 and/or X1-COM bridge)
2 LEDs to indicate operating readiness and contact position
1 changer
Overall width 22.5 mm, protection class IP40
Input
Liquid resistance
2 → 450 kΩ adjustable
Switch point hysteresis
approx. 3% (at 450 kΩ)
approx. 6% (at 2 kΩ)
Max. Cable length to the electrodes
450 kΩ / 50 m
Set value/cable length
100 kΩ / 200 m
35 kΩ / 500 m
10 kΩ / 1500 m
5 kΩ / 3000 m
Max. Electrode voltage/current (internally produced)
approx. AC 10 V / approx. AC 1.5 mA
Auxiliary voltage U
H
AC 220-240 V, 45 / 400 Hz
or DC 24 V
Auxiliary voltage range
0.85 → 1.1 U
H
Output
1 changeover
Thermal current
5 A
Switching capacity
AC11: 3A / AC 230 V
Liquid Level Relays are used to monitor the levels of conductive liquids, and are available in Up/Down, Minimum, Maximum, and Fill/Empty variations. Liquid Level Relays are straightforward to install and safe to use.
Application Examples
Liquid Level Relays (Conductive Level Sensors) are used in a wide variety of applications inc...
Popular items
BD5935.48 DC24V, Dold
Emergency Stop Module, BD5935.48
Machine emergency stop switches
Monitoring sliding grill guards
SK 4 (with equivalent switching)
Ultra compact unit (width 45 mm)
Output: 3 N/Os, 1 N/C
1 or 2-channel configuration
Line termination detection on the ON button
Programmable: cross-fault detection in emergency stop-control loop
Programmable: automatically comes on when operational voltage is applied or activation must happen with the ON button
LED indicators for channels 1 and 2
Option to monitor external protection
Removable terminals
Protection of humans and machines in accordance with: EC Directive for Machines 89/392/EEC, IEC 204 T 1, EN 60204 T 1, DIN VDE 0113
Input:
Nom. voltage:
AC 230 V or DC 24 V
Control voltage on S11:
24 Vdc
Min. voltage on S12, S21:
DC 21 V (activated device)
Output:
Contact assignment:
3 N/O, 1 N/C
Response time with ON button:
50 ms -25% +50%
Response time, automatic:
1 s -25% +50%
On:
Downtime in case of interruption:
...in secondary circuit (S12-S22):
25 ms -25% +50%
...in network:
50 ms -25% +50%
Switching capability according to AC 15:
5A / AC 250 V (N/O)
2 A / AC 250 V (NC)
General data:
Temperature range:
-15 °C → +55 °C
Terminal positioning:
Compliant with DIN 46199-4
Device dimensions (W x H x D):
45 x 74 x 121 mm
Approvals
BG
Standards
EN 60204-1 (stop functions), EN 418, prEN574, prEN 954-1
New Items
New items
BC7933N.81 AC/DC24V 5-100S, Dold
Off-delay timer relay with auxiliary voltage (BC7933)
Off-delay of 0.5 s to 60 min configurable (depending on type)
With auxiliary voltage (nominal voltage)
110 AC → 240 V or 24 Vac / Vdc (depending on type)
Control input B1 can be controlled with nominal voltage; no volt-free control contact required
LED indicator for contact position
1 changeover
Time circuit
Time ranges t
1
depending on type:
0.5 → 10 s, or 5 → 100 s
or 0.5 → 10 min, or 3 → 60 min
Time setting:
Continuous 1:20
Minimum connection time o nB1
AC: 15 ms, DC: 5 ms
Reactivation time:
≤50 ms
Repeat accuracy:
≤0 .5 % + 10 ms
Input
Nominal voltage U
H
(A1 / A2, B1 / B2):
110 AC → 240 V, 50 / 60 Hz
Depending on type:
or 24 Vac / Vdc
Auxiliary voltage range:
0.8 → 1.1 U
H
for AC
0.9 → 1.25 U
H
for DC
Release voltage to B1:
≥15 % U
N
Output
Contact assignment:
1 changeover
Thermal current I
th
:
4 A
General data
Rated operating current type:
Continuous
Temperature range:
-20 → +60 °C
Leiteranschluß:
2 x 2.5 mm
2
solid or
2 x 1.5 mm
2
with sleeve
Device dimensions (W x H x D):
22.5 x 84 x 97 mm
Standards
Complies with DIN EN 61 812-1
New items
MK9040N.12/001 3AC50/60Hz 400V, Dold
MK 9040N - Asymmetry relay
Detects voltage asymmetry, phase loss, reverse voltage and phase sequence
Impervious to symmetrical harmonics up to distortion factor of K 20 %
2 LED displays for voltage supply and contact position
Output contact 2 changeovers
Overall width: 22.5 mm
For monitoring three-phase networks, e.g. lifts, escalators, hoisting systems, etc.
Input
Nominal voltage U
N
:
400 Vac, 3-phase
Voltage range:
0.8 → 1.1 U
N
Nominal frequency:
50 / 60 Hz
Nominal consumption:
approx. 4.8 VA
Output
Contact assignment:
2 changeovers
Response/fallback time:
≤1 s / ≤250 ms
Thermal current:
6A
Switching capacity (as per AC-15):
- NO contact
3 A @ 230 Vac
- NC contact
1 A @ 230 Vac
General data:
Rated operating current type:
Continuous
Mounting:
DIN Track
Temperature range:
-20 °C → +60 °C
Device dimensions (W x H x D):
22.5 x 90 x 100 mm
Weight:
145 g
Phase Sequence/Failure Relays
Monitoring of 3 phase supplies
Orange housing manufactured to DIN 43 880
DIN rail mount
New items
LG5924.02/61 DC24V, Dold
LG5924 - Emergency stop module
Emergency stop relay compliant with the EC Directive on machines 98/37/EC
1-channel configuration
LED status display
Short circuit detection between terminal Y1 and earth
Overall width of 22.5 mm
Applications
Protection of persons and machines
Machine emergency stop switches
Approvals
CE
Standards
IEC/EN 60204-1, VDE 0113 Part 1 (1998-11)
New items
IK9178 3AC50/60Hz 400V, Dold
IK9179 three-phase monitor and IK9178 display
Monitoring of three-phase systems for direction of rotation
No auxiliary voltage
LED display lights up when a clockwise rotation field is detected
17.5 mm overall width
In accordance with IEC 255, VDE 0435 Section 303
Additional function on IK9179 three-phase monitor
Output 1 changeover contact for control purposes
Input
Nominal voltage U
N
:
3 AC 400 V
Voltage range:
0.8 → 1.1 U
N
Frequency range:
45 → 65 Hz
Output (IK9179 only)
Contact assignment:
1 changeover
Thermal current I
th
4 A
General data
Rated operating current type:
Continuous operation
Temperature range:
-20 °C → +60 °C
Wire connection solid/stranded with sleeve:
2 x 2.5 mm
2
/ 2 x 1.5 mm
2
Device dimensions (W x H x D):
17.5 x 90 x 59 mm
Phase Sequence/Failure Relays
Monitoring of 3 phase supplies
Orange housing manufactured to DIN 43 880
DIN rail mount
New items
MK9052.11 AC50/60Hz 230V, Dold
MK9052 - Thermistor motor protection relay
1 input for thermistors or bi-metallic contacts
Wire breakage detection in the sensor circuit
LED for switching status
Rest current principle
1 changeover
22.5 mm overall width
The MK9052 motor protection relay is used to prevent thermal overloads in motors (for example as caused by high switching frequencies, heavy start-up loads, single phase operation, interrupted cooling, high ambient temperature).
Special thermistors (PTC resistors) developed specifically for motor protection are used as temperature sensors. Up to 6 sensors can be switched in sequence; when a fixed resistance level is reached, they cause the output relay of the MK9052 to de-energise.
Input
Response value/fallback value:
≥3 kΩ / ≤1.8 kΩ
Measuring circuit load/voltage
Approx. 1 mW / 1.2 V (R=1.5 kΩ)
Auxiliary voltage U
H
230 Vac, 50 / 60 Hz or 24 Vdc
Voltage range U
H
0.9 → 1.1 U
H
Output
Contact assignment
1 changeover
Response/fallback delay
Thermal current
5 A
Switching capacity
3 A (as per AC 11, AC 230 V)
Voltage range U
H
0.9 → 1.1 U
H
New items
MK9151.11 2-450kOhm DC24V, Dold
MK 9151 - level relay
The MK9151 is used for
Level monitoring and control of conductive liquids and powders, e.g. maximum and minimum fill level, protection against overfilling and dry running
Monitoring and control of the mix ratio for conductive liquids
General resistance monitoring, e.g. recording temperature limits with PTC (device to IEG 255, VDE 0435 section 303)
Features
3 electrode connections for 2-point and 1-point level control
The metering circuit galvanically isolated from the mains is immune from high levels of interference
Max. lead length to the electrodes: 1500 m
Wide setting range: 2 → 450 kΩ which enables differentiation between liquid and foam
Adjustable response and fallback delay: 0.2 → 20 s
Programmable for working current principle (without bridge) or rest current principle (X1-X2 and/or X1-COM bridge)
2 LEDs to indicate operating readiness and contact position
1 changer
Overall width 22.5 mm, protection class IP40
Input
Liquid resistance
2 → 450 kΩ adjustable
Switch point hysteresis
approx. 3% (at 450 kΩ)
approx. 6% (at 2 kΩ)
Max. Cable length to the electrodes
450 kΩ / 50 m
Set value/cable length
100 kΩ / 200 m
35 kΩ / 500 m
10 kΩ / 1500 m
5 kΩ / 3000 m
Max. Electrode voltage/current (internally produced)
approx. AC 10 V / approx. AC 1.5 mA
Auxiliary voltage U
H
AC 220-240 V, 45 / 400 Hz
or DC 24 V
Auxiliary voltage range
0.85 → 1.1 U
H
Output
1 changeover
Thermal current
5 A
Switching capacity
AC11: 3A / AC 230 V
Liquid Level Relays are used to monitor the levels of conductive liquids, and are available in Up/Down, Minimum, Maximum, and Fill/Empty variations. Liquid Level Relays are straightforward to install and safe to use.
Application Examples
Liquid Level Relays (Conductive Level Sensors) are used in a wide variety of applications inc...
New items
BD5935.48 DC24V, Dold
Emergency Stop Module, BD5935.48
Machine emergency stop switches
Monitoring sliding grill guards
SK 4 (with equivalent switching)
Ultra compact unit (width 45 mm)
Output: 3 N/Os, 1 N/C
1 or 2-channel configuration
Line termination detection on the ON button
Programmable: cross-fault detection in emergency stop-control loop
Programmable: automatically comes on when operational voltage is applied or activation must happen with the ON button
LED indicators for channels 1 and 2
Option to monitor external protection
Removable terminals
Protection of humans and machines in accordance with: EC Directive for Machines 89/392/EEC, IEC 204 T 1, EN 60204 T 1, DIN VDE 0113
Input:
Nom. voltage:
AC 230 V or DC 24 V
Control voltage on S11:
24 Vdc
Min. voltage on S12, S21:
DC 21 V (activated device)
Output:
Contact assignment:
3 N/O, 1 N/C
Response time with ON button:
50 ms -25% +50%
Response time, automatic:
1 s -25% +50%
On:
Downtime in case of interruption:
...in secondary circuit (S12-S22):
25 ms -25% +50%
...in network:
50 ms -25% +50%
Switching capability according to AC 15:
5A / AC 250 V (N/O)
2 A / AC 250 V (NC)
General data:
Temperature range:
-15 °C → +55 °C
Terminal positioning:
Compliant with DIN 46199-4
Device dimensions (W x H x D):
45 x 74 x 121 mm
Approvals
BG
Standards
EN 60204-1 (stop functions), EN 418, prEN574, prEN 954-1
Don’t hesitate to ask questions for better clarification.