POTTER & BRUMFIELD 
CNT series

10 programmable timing modes + 2 counting modes.
0.1 sec to 9,990 hr. programmable timing range.
1 to 99,900 counting range.
LCD digital display.
Universal (24-240VAC/VDC) and fixed input types.
10A output relay with DPDT contacts.
Thumbwheel switches for programming.

File E22575
File LR15734

· Delay On Operate
· Delay On Release
· Interval On
· Control-Off Interval On
· Recycle
· Single Cycle
· Control-On-Off Interval On (Watch Dog Timer)
· Control On-Off Delay
· Pulse
· Cumulative Delay On Operate

Timing Ranges: 0.1 to 99.9 / 1 to 999 sec.; 0.1 to 99.9 / 1 to 999 min.;
               0.1 to 99.9 / 1 to 999 / 10 to 9,990 hr.
Timing Adjustment: Digital adjustment via thumbwheel switches.
Tolerance: +/-0.5% +/-0.05 sec.
Delta Time (for AC units add +/-1 cycle 60Hz.): +/-0.1% +/-0.05 sec.
Repeatability (Including first cycle of operation.): +/-0.1% +/-0.05 sec.
Reset Time (power interruption): 45ms, typical; 60ms, max.
Minimum Pulse Width, Control: 50ms.
Recycle Time: 45ms, typical; 60ms max.

Arrangements: 2 Form C (DPDT).
Material: Silver-cadmium oxide alloy.
Rating: 10A @ 30VDC or 277VAC, resistive;
        1/2HP @ 250VAC;
        1/3HP @ 120VAC.
Expected Mechanical Life: 10 million operations.
Expected Electrical Life: 100,000 operations, min., at rated load.

Between Open Contacts: 1,000V rms, 60Hz.
Between All Other Conductors: 1,500V rms, 60Hz.

UNIVERSAL INPUT MODEL:

Input Voltage     Part Number
24-240VAC/VDC     CNT-35-96


FIXED INPUT MODELS:

Input Voltage     Part Number
 12VDC            CNT-35-26
120VAC            CNT-35-76



ACCESSORIES

Part Number      Name                Description
SSA-24C667       Mounting Clip       Ratchet-fit clip slides onto CNS from behind
                                     to secure CNT in panel mount applications.

SSA-24C668       Protective Cover    Clear, flexible cover slips snugly over 
                                     bezel of CNT to help protect agains dust 
                                     and moisture.
                                     Durable cover also helps prevent 
                                     inadvertant changes of programming switch 
                                     settings.

Voltage: Universal Input Type: 24-240V +/-15%, 50/60Hz. AC or DC.
         Fixed Input Types:    120VAC +/-15%, 50/60Hz. and 12VDC.
Power Requirement:
  Universal Input Type: 10VA @ 240VAC;  5VA @ 120VAC;  1VA @ 24VAC.
                        10W  @ 240VDC;  5W  @ 120VDC;  1W  @ 24VDC.
  Fixed Input Types:     3VA @ 120VAC;  3W @ 12VDC.
Transient Protection: Yes.
Reverse Voltage Protection: Yes.

Temperature Range: Storage: -20C to +70C.
                   Operating: -10C to +55C.
Humidity: 85% relative humidity, non-condensing.

Termination: 11 pin octal style plug.
Enclosure: Beige plastic 1/16 DIN case.
Sockets: Fits either 27E123 or 27E892 (snap-on) screw terminal sockets.
         See KRPA sockets for details.
Weight: 4.3oz. (122g) approx.
External Control: CONTROL, RESET: Active on contact closure or solid
                  state switch closure to RETURN, 0-1.0VDC maximum.
                  voltage level (see wiring diagrams for interface circuits).