1768-PA3 A-B  Gate Module

A safety relay: • Is designed with an internal circuit that will allow power to be removed from a load even if an internal contact welds. • The internal circuit is redundant and self–monitoring, using multiple, positive–guided relays. • Monitors faults in the safety relay, and the input (e.g. Start and Stop Buttons) and output (e.g. Auxiliary Relay) devices. • Typically replaces the relay (often a master control relay) that interfaces between input devices and contactors or starters. • Can be ordered with different numbers of contacts, like any other relay. • The contacts are called “monitored outputs” or “safety outputs”, and have two or more contacts in series to achieve redundancy for each load (refer to figure 1). • Is designed to meet requirements for safety categories as outlined in European Norm EN 954 and EN 574

Also called “All–or–Nothing Relays with Positively Driven Contacts”. Relays of this type have contacts that are mechanically connected together, such that if a normally open (NO) or make contact remains closed, a normally closed (NC) or break contact can not re–close. Additionally, if a NC contact fails to open upon energizing the relay, the NO contacts shall not close. This is outlined in ANSI B11.19 and EN 50205.

The positive–guided feature is necessary in the circuit design to ensure that the circuit does not re–close after a fault. Redundant contacts wired in a series ensure that the power can be removed from the load, even if a contact has welded. Refer to the redundant, self–monitoring circuit (page 5) for a more extended explanation. Relays with positive–guided contacts can be the standard panel or DIN rail mount varieties, or printed circuit board mount, like those found inside safety relays.

The structure and details of the product：

Please make an inquiry for more models

　　AB 1756-LSP

　　AB 1756-LSP/B

　　AB 1756-M02AE

　　AB 1756-M02AS

　　AB 1756-M03SE

　　AB 1756-M08SE

　　AB 1756-M1

　　AB 1756-M16S

　　AB 1756-M16SE

　　AB 1756-N2

　　AB 1756-OA16

　　AB 1756-OA16I

　　AB 1756-OB16D

　　AB 1756-OB16E

　　AB 1756-OB16I

　　AB 1756-OB16I/A

　　AB 1756-OB16IEF

　　AB 1756-OB16IS

　　AB 1756-OB32

　　AB 1756-OB32/A

　　AB 1756-OB8

　　AB 1756-OF4

　　AB 1756-OF41794-ADN

　　AB 1756-OF6CI

　　AB 1756-OF6VI

　　AB 1756-OF8

　　AB 1756-OF8/A

　　AB 1756-OF81

　　AB 1756-OG16

　　AB 1756-OH8I

　　AB 1756-ON8

　　AB 1756-OV16E

　　AB 1756-OV32E

　　AB 1756-OW16I

　　AB 1756-OW16I/A

　　AB 1756-OX8I

　　AB 1756-PA72

　　AB 1756-PA72/B

　　AB 1756-PA72/C

　　AB 1756-PA75

　　AB 1756-PA75/A

　　AB 1756-PA75/B

　　AB 1756-PA75R

　　AB 1756-PAR2

　　AB 1756-PB72

　　AB 1756-PB75

　　AB 1756-PB75R

　　AB 1756-PBR2

　　AB 1756-PC75

　　AB 1756-PLS

　　AB 1756-PSCA2/A

　　AB 1756-RM

　　AB 1756-RM2

　　AB 1756-RM2/A

　　AB 1756SC-CTR8

　　AB 1756-SRM/B

　　AB 1756-TBCH

　　AB 1756-TBNH

　　AB 1756-TBS6H

Other best-selling products：