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< Marsh Bellofram Group of Companies < Automatic Timing & Controls < Timer < 407B Series
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PDF icon 407B Series
407B 1/16 DIN Multi-Mode Timer
  • Selectable On-Delay/Off-Delay/Interval Timing Modes
  • Separate Start Input
  • Output Contacts rated 10A at 120/240 VAC and 30 VDC
  • Six Timing Ranges in a single unit:
    1 and 10 sec., min., and hours
    5 and 50 sec., min., and hours
  • Universal Power Supply; 24-240 VAC and 24 VDC
  • 48mm2 DIN Standard housing
  • Large and easy to read dial shows decimal points
  • Round (octal) socket mount or mount in panel cutout
  • Watertight when panel mounted
  • Range and Mode select are tamper proof when panel mounted
  • Unique flashing cycle progress indication
Product Detail:
Multiple Timing Modes: The 407B is available with selectable On-Delay, Off-Delay or Interval timing modes. These timing modes energize a set of DPDT output contacts. When in the On-Delay mode, the 407B begins timing when the timer is energized. In On-Delay mode, the contacts transfer at time out. When in the Off-Delay mode, the 407B begins timing when the Start input is de-energized. In Off-Delay mode, the contacts transfer at time out. When in the Interval mode, the contacts transfer when the timer is energized. In Interval mode, the contacts release at time out.
Universal Power Supply: All 407B timers can be powered using 24-240 VAC or 24 VDC power, greatly simplifying ordering and inventory management of replacement units.
High Accuracy: The 407B’s timing circuit is not a simple RC circuit. It utilizes the sophistication of a proprietary integrated circuit that includes counting technology along with a stable oscillator to provide repeatable time delays.
1/16 DIN Housing: The 48mm2 (1/16 DIN) housing is compact and is watertight when panel mounted. The 407B is mounted in an 11-pin round socket. With an optional mounting clip, the 407B can be panel mounted.
The Dial on the 407B is extra large and is easy to read. When fractional ranges are selected, decimal points are clearly indicated.
The Mode select and Range select switches are located on the side of the unit, so that when panel mounted, these switches are not accessible to the operator. This tamper proof feature prevents unauthorized or hazardous changes to the timing mode and range from being made.
Cycle Progress Indication: The 407B LED indicator provides a unique and effective method of cycle progress indication. Off before timing, the LED blinks at an ever increasing rate as the cycle progresses; once every 3-1/2 seconds during the first 10% of the cycle, twice during the second 10%, and so on. At time out, the LED pulses at a high rate. (In the 1, 5, 10 and 50 second ranges, the LED is Off before timing, steady On during timing, and pulsing On after time-out).
Part Numbers:
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407B
3
Range
100
F
3
X

Six dial-selected ranges (1 or 10 Sec/Min/Hrs)

Six dial-selected ranges (5 or 50 Sec/Min/Hrs)
500
Voltage & Frequency
24 to 240 VAC (50/60 Hz) and 24 VDC
24 VDC
(low inrush current for short-circuit protected sensors)
N
Arrangements
11-pin On-Delay, Off-Delay, Interval Timing Modes
Features
Standard
Special
K
Options:
Accessories
11-Pin surface/DIN rail socket
0000-825-86-00
Hold down for above socket
0405-025-07-00
Panel mounting bracket
0405-320-02-00
Plug-in socket kit (11-pin)
0314-260-07-00
11-Pin panel socket w/rear facing terminals
600-3-0012
Purchase Details:
Product Contact:
Sales Contact
Technical Contact
Specifications:
Models
407B100F3X
On Delay, Off Delay, Interval Timing with (1) DPDT relay (1 or 10 SEC/MIN/HRS
407B500F3X
On Delay, Off Delay, Interval Timing with (1) DPDT relay (5 or 50 SEC/MIN/HRS)
Both models available in 6 ranges from 1 sec. to 10 hrs. or 5 sec. to 50 hrs.
Contact Rating
Rated 10 AMPS resistive at 30 VDC or 250 VAC (or less) 1/8 HP @120 VAC 1/4 HP @ 240 VAC, 240 VA @ 240 VAC
LIFE: 10 million operation with no load 100,000 operations with:
10 AMPS at 30 VDC (or less) or 10 AMPS at 250 VAC (or less)
Contact Material
Silver Cadmium Oxide
Temperature Rating
0 to 122°F (-18° to 50°C)
Noise Immunity
Showering ARC per NEMA ICS 2-230
In addition, the 407B will withstand a voltage surge of 4500 volts for 50 µsec. without damage.
Mounting
Plug-in 11-Pin round base

Options: Surface mounting socket
DIN rail mounting socket
Panel-mounting adapter kit
Plug-on socket kit
Power Requirements
Universal power supply - reverse polarity protected
Unit will accept power from 24 to 240 VAC, 50 or 60 Hz, (+10%, -20%) 24 VDC (+20%, -20%)
AC
Inrush - 1.5 Amps
Power required - 1.2 watts
DC
Maximum ripple @ 100Hz - 5%
Current required - 50mA
Power required - 1.2 watts
“F” option - Peak inrush current = 2 AMPS @ 24 VDC
“N” option - Peak inrush current = 150 mA @ 24 VDC
Repeat Accuracy
Varies as a function of temperature.
Any voltage (constant temperature): ±0.5%*
Any voltage (32° F to 140° F): ±1.5%*
Any voltage (0° F to 140° F): ±2.0%*
*Variation from average actual time.
Minimum Setting
2% of range, with the exception of 50 mSec on the 1 second range
Setting Accuracy
±5% of range
Reset
a
0 to 20 mSec power interruption: guaranteed no reset.
b
20 to 65 mSec; it may reset (40 mSec typical reset).
c
Over 65 mSec guaranteed to reset.
The TDR will reset properly and not start timing when subjected to an open start switch leakage of 1.5 mA or less. (Prox switch & Triac drive applications)
Terminal #6 (Start switch requirements– Off-Delay)
DC
Minimum Current Rating - 50mA Maximum saturated voltage drop -
AC
Minimum Current Rating - 1.5 A
Weight
5 oz. (140g)