West Controls' Plus series limit controllers provide a latched relay output for high or low setpoint limits, providing a failsafe cutoff point for critical applications. The universal input supports thermocouples, RTDs, and DC linear inputs. Digital input and remote setpoint input options are also available.

 

• Choices of 1/16 DIN, 1/8 DIN, or 1/4 DIN Enclosures
• CE, UL, and FM-Approved Limit Controllers
• Standard with SPDT Latching Relay Output #1
• Relay, SSR Driver, DC Linear, Triac, or 24 VDC Transmitter Power Outputs
• RS-485 Communications Option for Modbus or West ASCII
• Two-Line Display with All-Red, All-Green or Red and Green LEDs

 

Use this table to find the right model for your application. Click the model number to order in our secure online store.

Description		Catalog Number
1/16 DIN FM-Approved Limit Controller 1/8 DIN FM-Approved Limit Controller 1/4 DIN FM-Approved Limit Controller		P6701Z21- P8701Z21- P4701Z21-
Output 2	None SPDT Relay (2 Amp, 240 VAC) 10 VDC Solid State Relay Driver DC Linear (mA, V) Triac	0 1 2 7 8
Output 3	None SPDT Relay (2 Amp, 240 VAC) 10 VDC Solid State Relay Driver DC Linear (mA, V) 24 VDC Transmitter Power Supply	0 1 2 7 8
Option Slot A	None RS-485 Serial Communications Digital Input	0 1 3
Supply Voltage	100-240 VAC 24-48 V AC/DC	0 2
Display Colors	Both Displays in Red Both Displays in Green Upper Display Red, Lower Green Upper Display Green, Lower Red	0 1 2 3

	Catalogue Section: Controllers and Programmers
	West Plus Series Limit Controllers Brochure
	West Plus Series P6700 1/16 DIN Limit Controller Specification
	West Plus Series P8700 1/8 DIN Limit Controller Specification
	West Plus Series P4700 1/4 DIN Limit Controller Specification
	West Plus Series P4700 1/4 DIN Limit Controller Specification
	West Plus Series Limit Controllers Quick Start Guide
	West Plus Series Loop and Limit Controllers User Manual