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4700+ 1/4 DIN FM Approved High/Low Limit Control

West 1/4 DIN High/Low Limit Control, Universal Input, Latching Output (Choose options below).

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West 4700+ (P4700) High Limit Control
(Including Options)
Item Number: P4701
Product Line: West
Manufacturer Part No: 4700+ P4701

Product Options

* denotes required field

Out #1 (Heat)*
Out #2 ( Cool/ALM 2)*
Out #3 (ALM 1 or Retransmit)*
Options #1*
Power Supply*

Most Configurations Are In Stock For Same Day Shipment
We will advise immediately if your order will be delayed

The ISE/West 4700+provides a programmable safety cut out with optional outputs for annunciators and alarms. A latched relay cuts power to the process if it exceeds the safe value. The unit must be reset before the process can continue.

Plug in direct replacement for the N4700 / N4701 series.

We fully configure the control prior to shipment so that it is truly plug & play. Configurations can be easily modified if your requirements change.



  • High or low trip
  • Exceed & relay indicators
  • 5 amp latched relay
  • Configuration via PC
  • Remote reset option
  • RS485 comms
  • 2 Annunciators or alarms
  • PV retransmit option


West 4700+ Panel Cutout
West 4700+ Dimensions

Output Configuration - Up to 3 Total. 1 latching trip relay, max 2 alarms relays, max 2 DC linear retransmit (PV or limit value).
Alarm 1 & 2 Types - Process high, process low, setpoint deviation, band, logical OR alarms or trip annunciator.
Limit Action - Latching relay output when PV exceeds set value. Selectable for high or low trip activation.
Output Reset Action - Limit output can be reset only when exceed condition is absent. Local or remote reset options.
Annunciator Reset Action - Annunciator output can be reset at any time. Local or remote reset options.
Human Interface - 4 button operation, dual 4 digit 13mm & 10mm high LED displays. Exceed, output & alarm indicators. Red Upper display / Green Lower Display Standard. Red Upper/Lower Optional.
PC Configuration - Configuration via PC only. Dedicated config socket (comms option not required
Thermocouple - J, K, R, S, T, B, L, C, Pt-Rh20% vs Pt-Rh40% & N.
RTD - 3 Wire PT100, 50ohm per lead maximum (balanced).
DC Linear - 0-20/4- 20mA, 0-50/10-50mV, 0-5/1-5/0-10/2-10V. Scaleable -1999 to 9999, decimal point selectable.
Impedance - >10Mohm for Thermocouple and mV ranges, 47Kohm for V ranges and 5ohm for mA ranges.
Accuracy - +/- 0.1% of input span +/- 1 LSD (T/C CJC better than 1°C).
Sampling - 4 per second, 14 bit resolution approximately.
Sensor Break Detection - <2 secs (except zero based DC ranges), control O/P's turn off, high alarms activate for T/C and mV ranges, low alarms activate for RTD, mA or V ranges.

Outputs & Options
Limit Trip Relay - Contacts SPDT 5Amp resistive at 240V AC, >100,000 operations
Alarm Relays - Contacts SPDT 2Amp resistive at 240V AC, >500,000 operations.
SSR Drive - (Outputs 2 & 3 only) >10VDC into 500 ohm minimum.
Triac - (Output 2 & 3 only) 0.01 to 1AAC, 20-280Vrms 47-63Hz
Retransmit Outputs - 0-20/4-20mA into 500ohm max, 0-10/0-5V into 500ohm min. Accuracy typically +/- 0.25%.
Communications - 2 Wire RS485, 1200 to 19200 Baud, West ASCII or Modbus selectable.
Remote reset option - Allows remote latched relay and annunciator reset, using volt free or TTL input (Reset = -0.6 to 0.8V, or contact closure).

Operating & Environmental
Temperature & RH - 0 to 55°C (-20 to 80°C storage), 20% to 95%RH non-condensing.
Power Supply - 100-240Vac 50/60Hz (standard) 7.5VA ; 20-50Vac 50/60Hz (option) 7.5VA & 22-65Vdc (option) 4W.
Front Panel Protection - IEC IP66 (Behind panel protection is IP20).
Approvals and Certification - CE, UR, cUR. & FM

Additional Information

Click Here to Download Product Literature

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ISE, Inc.
10100 Royalton Rd.
Cleveland, OH 44133
Tel:  (440) 237-3200
Fax: (440) 237-1744