Notes; Connection Terminals; Technical Data - DOLD SAFEMASTER BG 7925 Traduction De La Notice Originale

Notes

The output contacts of the two timing circuits are connected in series.
This results in so-called switch off redundancy, i.e. the contact path is
opened reliably after expiry of the predefined delay time, even if a contact
in this path is welded.
AC-models can be connected to DC 24 V via terminals A3-A4.
For units with auxiliary supply the control of the time circuits is made via
terminals Y1, Y3/Y2 (see application examples). Plus is connected to Y1,
Y3 and minus to Y2. Units without auxiliary supply are controlled with the
nominal voltage U .
N
Attention!
Before activating the unit it has to be checked by monitoring the NC
contacts 45, 46, if both relays have been de-energized.
The gold plated contacts of the BG 7925.21/40_ mean that this module
is also suitable for switching small loads of 1 mVA - 7 VA, 1 mW - 7 W in
the range 0.1 - 60 V, 1 - 300 mA. The contacts also permit the maximum
switching current. However since the gold plating will be burnt off at this
current level, the device is no longer suitable for switching small loads
after this.

Connection Terminals

Terminal designation
A1 (+), A3 (+)
A2 (-), A4 (-)
Y1(+), Y2(-), Y3 (+)
S11(+), S21 (-)
17,18, 27, 28, 37, 38
25, 26, 45, 46

Technical Data

Time circuit
Time delay t :
v
Longer time on request. Units without auxiliary supply are available only
up to 10 s with 1 timing circuit or 5 s with 2 timing circuits.
Repeat accuracy:
Min. turn-on time:
Input
Nominal voltage U
N
(Auxiliary voltage U )
H
BG 7925:
BH 7925:
Voltage range:
with 10 % residual ripple:
with 48 % residual ripple:
Nominal frequency:
Nominal consumption:
Control voltage U
S
at Y1, Y2, Y3:
current in Y1, Y3:
Signal description
+ / L
- / N
Inputs
Outputs
Forcibly guided NO contacts for
release circuit
Forcibly guided indicator output
adjustable fixed
0.1 ... 1 s 1 s
0.3 ... 3 s 3 s
0.5 ... 5 s 5 s
1 ... 10 s 10 s
3 ... 30 s 30 s
10 ... 100 s
30 ... 300 s
3 ... 30 min
±1 % of the setting value
10 % of full scale value
50 % of full scale value for units without
auxiliary supply
AC/DC 24 V
AC/DC 24 V and AC 230 V
1) 2)
on terminals A3 - A4
1)
on terminals A1 - A2
2)
AC 0.8 ... 1.1 U
N
DC 0.9 ... 1.1 U
N
DC 0.8 ... 1.1 U
N
50 / 60 Hz
typically DC 2.0 W
typically AC 4.2 VA
typically DC 24 V
typically 6.5 mA
Technical Data
Output
Contacts
BG 7925.21, BH 7925.21:
BG 7925.96, BH 7925.96:
The NO contacts are safety contacts.
The NC contacts 25-26 or 45-46 can only be used for monitoring.
Contact type:
Release delay typ. at U
N
BG7925, BH7925/0xx
Disconnecting the supply:
Disconnecting Y1, Y2, Y3:
BH5925/1xx
Disconnecting the supply:
Disconnecting Y1, Y2, Y3:
Nominal output voltage:
Thermal current I :
th
Switching capacity
to AC 15
NO contact:
NC contact:
to DC 13
BG/BH 7925.21
NO contact:
NC contact:
BG/BH 7925.96
NO contact:
NC contact:
to DC 13:
NO contact:
BG/BH7925.21
NC contact:
BG/BH7925.96
NC contact:
Electrical life
at 5 A, AC 230 V cos ϕ = 1:
Permissible operating
frequency:
Short circuit strength
max. fuse rating:
Mechanical life:
General Data
Operating mode:
Temperature range
Operation:
Strorage:
Clearance and creepage
distances
rated impuls voltage /
pollution degree:
EMC
Interference suppression:
Degree of protection
Housing:
Terminal plate:
Housing:
Vibration resistance:
Climate resistance:
Wire fixing:
Mounting:
Weight:
Dimensions
Width x height x depth
BG 7925:
BH 7925:
14
1 NO contact, 1 NC contact
3 NO contacts, 1 NC contact
Relay, forcibly guided
35 ms
35 ms + t
v
35 ms + t
v
35 ms + t
v
AC 10 ... 250 V
DC 10 ... 110 V
max. 5 A
3 A / AC 230 V IEC/EN 60 947-5-1
1 A / AC 230 V IEC/EN 60 947-5-1
2 A / DC 24 V IEC/EN 60 947-5-1
2 A / DC 24 V IEC/EN 60 947-5-1
1 A / DC 24 V IEC/EN 60 947-5-1
1 A / DC 24 V IEC/EN 60 947-5-1
4 A / DC 24 V at 0.1 Hz
3 A / DC 24 V at 0.1 Hz
4 A / DC 24 V at 0.1 Hz
> 2 x10 switching cycles
5
max. 2000 switching cycles / h
please note minimum closing time
6 A gG / gL IEC/EN 60 947-5-1
10 x 10 6 switching cycles
Continuous operation
- 15 ... + 55°C
- 25 ... + 85°C
4 kV / 2 IEC 60 664-1
IEC/EN 61 326-3-1, IEC/EN 62 061
limit value class B EN 55011
IP 40 IEC/EN 60 529
IP 20 IEC/EN 60 529
Thermoplastic with V0 behaviour
according to UL subject 94
Amplitude 0.35 mm, IEC/EN 60 068-2-6
frequency 10 ... 55 Hz
15 / 055 / 04 IEC/EN 60 068-1
Terminal screws M 3.5
Box terminal with wire protection
DIN rail IEC/EN 60 715
210 g
22,5 x 84 x 121 mm
45 x 84 x 121 mm
BG 7925, BH 7925 / 28.06.19 en / 117A